#point-spread-function — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #point-spread-function, aggregated by home.social.
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Weekly Update from the Open Journal of Astrophysics – 23/05/2026
It’s Saturday once again, so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 110 and the total so far published by OJAp up to 558.
I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.
The first paper to report this week, published on Monday 18th May in the folder Instrumentation and Methods for Astrophysics is “Edges In Coadded Images” by Erin Sheldon (Brookhaven National Laboratory, USA). This paper describes a study exploring how image discontinuities and noise impact weak gravitational lensing measurements, finding no significant biases under typical conditions. Biases occur only in extreme cases, but can be mitigated.
The overlay for this paper is here
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
https://fediscience.org/@OJ_Astro/116594222032390191
The second paper for this week, also published on Monday 18th May but in the folder Cosmology and Nongalactic Astrophysics, is “Joint cosmological fits to DESI-DR1 full-shape clustering and weak gravitational lensing in configuration space” by A. Semenaite (Swinburne Institute of Technology, Australia) and 72 other authors from all round the world. This paper presents a cosmological analysis of correlations between the DESI-DR1 Bright Galaxy Survey and Luminous Red Galaxy samples and overlapping shear measurements from various weak lensing surveys.
The overlay for this one is here:
The official version of the paper can be found on arXiv here and the Fediverse announcement here:
https://fediscience.org/@OJ_Astro/116594256215421009
Next one up, the third paper of the week, and the third published on Monday 18th May, and in the folder Cosmology and Nongalactic Astrophysics is “Probing Dark Energy Microphysics with kSZ Tomography” by Julius Adolff, Selim Hotinli and Neal Dalal (all of the Perimeter Institute, Canada). This paper explores how kinetic Sunyaev-Zel’dovich tomography and galaxy clustering can enhance our understanding of dark energy and its effects, potentially revealing its microphysical properties in future surveys.
The overlay for this one is here:
The final, accepted version can be found on arXiv here and the Mastodon announcement is here:
https://fediscience.org/@OJ_Astro/116594304124291605
The fourth paper this week, published on Wednesday May 20th is “A Census of Variable Radio Sources at 3 GHz” by Yjan A. Gordon, Peter S. Ferguson, Michael N. Martinez and Eric J. Hooper (all of the University of Wisconsin, USA). This article, published in the folder Astrophysics of Galaxies, uses data from the Very Large Array Sky Survey to analyze variability in the radio sky, finding most changes consistent with blazars and quasars.
The overlay is here:
The officially accepted version can be found on arXiv here and here is the Mastodon announcement:
https://fediscience.org/@OJ_Astro/116607468481260244
The fifth article of this week was published on Friday 22nd May in the folder Instrumentation and Methods for Astrophysics. The title is “Uncovering the Next Galactic Supernova with the Vera C. Rubin Observatory” by John Banovetz (Lawrence Berkeley Lab., USA), Claire-Alice Hebert & Peter B. Denton (Brookhaven National Lab., USA), Dan Scolnic (Duke University, USA), Anze Slosar (Brookhaven) and Chris Walter (Duke). The paper presents a study simulating how effectively the Vera C. Rubin Observatory can localize supernovae using neutrino triggers, finding a 57-97% success rate based on stellar mass density predictions.
The overlay is here:
You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/116617293753093751
Last, but by no means least, this week we have “Pulsar timing solutions for 17 pulsars at 150 MHz from the Irish LOFAR station” by David J. McKenna (ASTRON, The Netherlands), Evan F. Keane (Trinity College Dublin, Ireland), Peter T. Gallagher (DIAS, Ireland) and Joe McCauley (Trinity). This was published on Friday 22nd May in the folder High-Energy Astrophysical Phenomena. It presents a demonstration of the use of international Low Frequency Array (LOFAR) stations in tracking and characterizing pulsars, providing new insights into these neutron stars’ emission properties.
The overlay for this one is here:
You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/116617404344791486
And that concludes this week’s update. I’ll do another one next Saturday.
#arXiv250800976v2 #arXiv250906929v3 #arXiv251105653v2 #arXiv251215961v2 #arXiv260112094v2 #arXiv260522516v1 #AstrophysicsOfGalaxies #blazars #cosmicShear #cosmologicalSimulations #CosmologyAndNonGalacticAstrophysics #DarkEnergy #DarkEnergySpectroscopicInstrument #DarkEnergySurvey #DiamondOpenAccess #DiamondOpenAccessPublishing #galaxyClustering #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #kineticSunyaevZeDovichEffect #LOFAR #OpenAccess #OpenAccessPublishing #PointSpreadFunction #pulsars #quasars #radioAstronomy #stackedImages #SunyaevZeDovichEffect #supernova #supernovae #Tomography #VeraCRubinObservatory #VeryLargeArray #weakGravitationalLensing -
Weekly Update from the Open Journal of Astrophysics – 23/05/2026
It’s Saturday once again, so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further six papers, bringing the number in Volume 9 (2026) to 110 and the total so far published by OJAp up to 558.
I will continue to include the posts made on our Mastodon account (on Fediscience); these announcements also show the DOI for each paper.
The first paper to report this week, published on Monday 18th May in the folder Instrumentation and Methods for Astrophysics is “Edges In Coadded Images” by Erin Sheldon (Brookhaven National Laboratory, USA). This paper describes a study exploring how image discontinuities and noise impact weak gravitational lensing measurements, finding no significant biases under typical conditions. Biases occur only in extreme cases, but can be mitigated.
The overlay for this paper is here
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
https://fediscience.org/@OJ_Astro/116594222032390191
The second paper for this week, also published on Monday 18th May but in the folder Cosmology and Nongalactic Astrophysics, is “Joint cosmological fits to DESI-DR1 full-shape clustering and weak gravitational lensing in configuration space” by A. Semenaite (Swinburne Institute of Technology, Australia) and 72 other authors from all round the world. This paper presents a cosmological analysis of correlations between the DESI-DR1 Bright Galaxy Survey and Luminous Red Galaxy samples and overlapping shear measurements from various weak lensing surveys.
The overlay for this one is here:
The official version of the paper can be found on arXiv here and the Fediverse announcement here:
https://fediscience.org/@OJ_Astro/116594256215421009
Next one up, the third paper of the week, and the third published on Monday 18th May, and in the folder Cosmology and Nongalactic Astrophysics is “Probing Dark Energy Microphysics with kSZ Tomography” by Julius Adolff, Selim Hotinli and Neal Dalal (all of the Perimeter Institute, Canada). This paper explores how kinetic Sunyaev-Zel’dovich tomography and galaxy clustering can enhance our understanding of dark energy and its effects, potentially revealing its microphysical properties in future surveys.
The overlay for this one is here:
The final, accepted version can be found on arXiv here and the Mastodon announcement is here:
https://fediscience.org/@OJ_Astro/116594304124291605
The fourth paper this week, published on Wednesday May 20th is “A Census of Variable Radio Sources at 3 GHz” by Yjan A. Gordon, Peter S. Ferguson, Michael N. Martinez and Eric J. Hooper (all of the University of Wisconsin, USA). This article, published in the folder Astrophysics of Galaxies, uses data from the Very Large Array Sky Survey to analyze variability in the radio sky, finding most changes consistent with blazars and quasars.
The overlay is here:
The officially accepted version can be found on arXiv here and here is the Mastodon announcement:
https://fediscience.org/@OJ_Astro/116607468481260244
The fifth article of this week was published on Friday 22nd May in the folder Instrumentation and Methods for Astrophysics. The title is “Uncovering the Next Galactic Supernova with the Vera C. Rubin Observatory” by John Banovetz (Lawrence Berkeley Lab., USA), Claire-Alice Hebert & Peter B. Denton (Brookhaven National Lab., USA), Dan Scolnic (Duke University, USA), Anze Slosar (Brookhaven) and Chris Walter (Duke). The paper presents a study simulating how effectively the Vera C. Rubin Observatory can localize supernovae using neutrino triggers, finding a 57-97% success rate based on stellar mass density predictions.
The overlay is here:
You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/116617293753093751
Last, but by no means least, this week we have “Pulsar timing solutions for 17 pulsars at 150 MHz from the Irish LOFAR station” by David J. McKenna (ASTRON, The Netherlands), Evan F. Keane (Trinity College Dublin, Ireland), Peter T. Gallagher (DIAS, Ireland) and Joe McCauley (Trinity). This was published on Friday 22nd May in the folder High-Energy Astrophysical Phenomena. It presents a demonstration of the use of international Low Frequency Array (LOFAR) stations in tracking and characterizing pulsars, providing new insights into these neutron stars’ emission properties.
The overlay for this one is here:
You can find the authorized version of this paper on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/116617404344791486
And that concludes this week’s update. I’ll do another one next Saturday.
#arXiv250800976v2 #arXiv250906929v3 #arXiv251105653v2 #arXiv251215961v2 #arXiv260112094v2 #arXiv260522516v1 #AstrophysicsOfGalaxies #blazars #cosmicShear #cosmologicalSimulations #CosmologyAndNonGalacticAstrophysics #DarkEnergy #DarkEnergySpectroscopicInstrument #DarkEnergySurvey #DiamondOpenAccess #DiamondOpenAccessPublishing #galaxyClustering #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #kineticSunyaevZeDovichEffect #LOFAR #OpenAccess #OpenAccessPublishing #PointSpreadFunction #pulsars #quasars #radioAstronomy #stackedImages #SunyaevZeDovichEffect #supernova #supernovae #Tomography #VeraCRubinObservatory #VeryLargeArray #weakGravitationalLensing -
X1.1 flare from Active Region 14098 - May 25, 2025
#Corona #CoronalMassEjections #EUVImaging #EarthInformationCenter #ExtremeUltravioletImaging #GMAO #Heliophysics #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=14&user=OptimusPrimeBot&ilshowall=1&offset=20250626130237
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X1.1 flare from Active Region 14098 - May 25, 2025
#Corona #CoronalMassEjections #EUVImaging #EarthInformationCenter #ExtremeUltravioletImaging #GMAO #Heliophysics #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=14&user=OptimusPrimeBot&ilshowall=1&offset=20250626130237
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X1.1 flare from Active Region 14098 - May 25, 2025
#Corona #CoronalMassEjections #EUVImaging #EarthInformationCenter #ExtremeUltravioletImaging #GMAO #Heliophysics #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=14&user=OptimusPrimeBot&ilshowall=1&offset=20250626130237
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X1.1 flare from Active Region 14098 - May 25, 2025
#Corona #CoronalMassEjections #EUVImaging #EarthInformationCenter #ExtremeUltravioletImaging #GMAO #Heliophysics #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=14&user=OptimusPrimeBot&ilshowall=1&offset=20250626130237
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Weekly Update from the Open Journal of Astrophysics – 20/06/2025
Yesterday (Thursday 19th June 2025) was a national holiday in the USA, which means that no new papers were announced on arXiv today (Friday 20th June). I have therefore decided to bring forwarded the usual weekly update of papers published at the Open Journal of Astrophysics by a day. Since the last update we have published three new papers, which brings the number in Volume 8 (2025) up to 74, and the total so far published by OJAp is now up to 309.
The three papers published this week, with their overlays, are as follows. All three were published on Tuesday, June 17th 2025. You can click on the images of the overlays to make them larger should you wish to do so.
The first paper to report is “Illuminating the Physics of Dark Energy with the Discovery Simulations” by Gillian D. Beltz-Mohrmann (Argonne National Laboratory, USA) and 12 others based in the USA and Spain. This describes new high-resolution cosmological simulations providing a testbed for alternative cosmological probes that may offer additional constraining power beyond Baryon Accoustic Oscillations. It is filed in the folder marked Cosmology and NonGalactic Astrophysics.
The overlay is here:
You can read the final accepted version on arXiv here.
The second paper is in the folder marked Astrophysics of Galaxies. It is “LIGHTS. The extended point spread functions of the LIGHTS survey at the LBT” by Nafise Sedighi (Instituto de Astrofísica de Canarias, Spain) and 15 others based in Spain, USA, Iran, Italy and the UK. It describes the procedure used to construct the extended Point Spread Functions (PSFs) of the LIGHTS survey in images taken with the Large Binocular Cameras (LBCs) of the Large Binocular Telescope (LBT).
The overlay is here:
You can find the officially-accepted version of the paper on arXiv here.
Finally this week we have “Fast radio bursts as a probe of gravity on cosmological scales” by Dennis Neumann (Leiden University, Netherlands), Robert Reischke (Universität Bonn, Germany), Steffen Hagstotz (Ludwig-Maximilians Universität München, Germany) and Hendrik Hildebrandt (Ruhr University Bochum, Germany). This is about using dispersion measures derived from Fast Radio Bursts (FRBs) in combination with cosmic shear to investigate modified gravity theories, specifically Horndeski gravity. It is in the folder marked Cosmology and NonGalactic Astrophysics.
The overlay is here:
You can find the officially-accepted version on arXiv here.
That’s all the papers for this week. I’ll revert to the usual schedule for updates next week, and post the next one on Saturday 28th June.
#arXiv240911163v3 #arXiv241020190v2 #arXiv250305947v2 #AstrophysicsOfGalaxies #cosmicShear #Cosmology #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccessPublishing #DiscoverySimulations #fastRadioBursts #HorndeskiGravity #LargeBinocularTelescope #LIGHTSSurvey #OpenJournalOfAstrophysics #PointSpreadFunction #TheOpenJournalOfAstrophysics
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Weekly Update from the Open Journal of Astrophysics – 20/06/2025
Yesterday (Thursday 19th June 2025) was a national holiday in the USA, which means that no new papers were announced on arXiv today (Friday 20th June). I have therefore decided to bring forwarded the usual weekly update of papers published at the Open Journal of Astrophysics by a day. Since the last update we have published three new papers, which brings the number in Volume 8 (2025) up to 74, and the total so far published by OJAp is now up to 309.
The three papers published this week, with their overlays, are as follows. All three were published on Tuesday, June 17th 2025. You can click on the images of the overlays to make them larger should you wish to do so.
The first paper to report is “Illuminating the Physics of Dark Energy with the Discovery Simulations” by Gillian D. Beltz-Mohrmann (Argonne National Laboratory, USA) and 12 others based in the USA and Spain. This describes new high-resolution cosmological simulations providing a testbed for alternative cosmological probes that may offer additional constraining power beyond Baryon Accoustic Oscillations. It is filed in the folder marked Cosmology and NonGalactic Astrophysics.
The overlay is here:
You can read the final accepted version on arXiv here.
The second paper is in the folder marked Astrophysics of Galaxies. It is “LIGHTS. The extended point spread functions of the LIGHTS survey at the LBT” by Nafise Sedighi (Instituto de Astrofísica de Canarias, Spain) and 15 others based in Spain, USA, Iran, Italy and the UK. It describes the procedure used to construct the extended Point Spread Functions (PSFs) of the LIGHTS survey in images taken with the Large Binocular Cameras (LBCs) of the Large Binocular Telescope (LBT).
The overlay is here:
You can find the officially-accepted version of the paper on arXiv here.
Finally this week we have “Fast radio bursts as a probe of gravity on cosmological scales” by Dennis Neumann (Leiden University, Netherlands), Robert Reischke (Universität Bonn, Germany), Steffen Hagstotz (Ludwig-Maximilians Universität München, Germany) and Hendrik Hildebrandt (Ruhr University Bochum, Germany). This is about using dispersion measures derived from Fast Radio Bursts (FRBs) in combination with cosmic shear to investigate modified gravity theories, specifically Horndeski gravity. It is in the folder marked Cosmology and NonGalactic Astrophysics.
The overlay is here:
You can find the officially-accepted version on arXiv here.
That’s all the papers for this week. I’ll revert to the usual schedule for updates next week, and post the next one on Saturday 28th June.
#arXiv240911163v3 #arXiv241020190v2 #arXiv250305947v2 #AstrophysicsOfGalaxies #cosmicShear #Cosmology #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccessPublishing #DiscoverySimulations #fastRadioBursts #HorndeskiGravity #LargeBinocularTelescope #LIGHTSSurvey #OpenJournalOfAstrophysics #PointSpreadFunction #TheOpenJournalOfAstrophysics
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=11&user=OptimusPrimeBot&ilshowall=1&offset=20250603125554
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=11&user=OptimusPrimeBot&ilshowall=1&offset=20250603125554
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=11&user=OptimusPrimeBot&ilshowall=1&offset=20250603125554
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=11&user=OptimusPrimeBot&ilshowall=1&offset=20250603125554
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250531125748
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250531125748
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250531125748
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X1.2 flare from Active Region 14086 - May 13, 2025
#EUVImaging #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SolarActiveRegions #SolarCycle25 #SolarDynamicsObservatory #SolarFlares
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250531125748
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25 #SolarDynamicsObservatory
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250529125849
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25 #SolarDynamicsObservatory
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250529125849
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25 #SolarDynamicsObservatory
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250529125849
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25 #SolarDynamicsObservatory
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250529125849
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Landsat #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250529125935
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Landsat #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250529125935
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Landsat #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250529125935
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X2.7 and more flares from Active Region 14087 - May 14, 2025
#EUVImaging #ExtremeUltravioletImaging #Landsat #Multiplesolarflares #PointSpreadFunction(PSF) #SolarActiveRegions #SolarActivity #SolarCycle25
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250529125935
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Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
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Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
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Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
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Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
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Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
-
Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
-
Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
-
Surface Water and Ocean Topography (SWOT) Vertical Gravity Gradient
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=8&user=OptimusPrimeBot&ilshowall=1&offset=20250323125626
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An M9.4 flare from Active Region 13910 - November 25, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20250318130125
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An X2.1 and X1.0 flare from Active Region 13842 - October 7, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=13&user=OptimusPrimeBot&ilshowall=1&offset=20241105130354
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An X2.1 and X1.0 flare from Active Region 13842 - October 7, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=13&user=OptimusPrimeBot&ilshowall=1&offset=20241105130354
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An X2.1 and X1.0 flare from Active Region 13842 - October 7, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=13&user=OptimusPrimeBot&ilshowall=1&offset=20241105130354
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An X2.1 and X1.0 flare from Active Region 13842 - October 7, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 3 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=19&user=OptimusPrimeBot&ilshowall=1&offset=20241105130354
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An X2.1 and X1.0 flare from Active Region 13842 - October 7, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 3 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=19&user=OptimusPrimeBot&ilshowall=1&offset=20241105130354
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An X2.1 and X1.0 flare from Active Region 13842 - October 7, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 3 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=19&user=OptimusPrimeBot&ilshowall=1&offset=20241105130354
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An X9.0 flare from Active Region 13842 - October 3, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20241031130051
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An X9.0 flare from Active Region 13842 - October 3, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20241031130051
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An X9.0 flare from Active Region 13842 - October 3, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #PointSpreadFunction(PSF) #SDO
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=6&user=OptimusPrimeBot&ilshowall=1&offset=20241031130051
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An X1.3 flare from Active Region 13825 - and later an M6.8 - September 12, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 4 new pictures and 5 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=33&user=OptimusPrimeBot&ilshowall=1&offset=20241026130313
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An X1.3 flare from Active Region 13825 - and later an M6.8 - September 12, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 4 new pictures and 5 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=33&user=OptimusPrimeBot&ilshowall=1&offset=20241026130313
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An X1.3 flare from Active Region 13825 - and later an M6.8 - September 12, 2024
#Corona #CoronalMassEjections #EUVImaging #EarthScience #ExtremeUltravioletImaging #Heliophysics #Multiplesolarflares #PointSpreadFunction(PSF)
⏩ 4 new pictures and 5 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=33&user=OptimusPrimeBot&ilshowall=1&offset=20241026130313
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Lovely picture! Pity that so many astronomers still do not understand that to investigate such a galaxy it is important to take the point spread function into account properly. I.e., read Sandin 2014A&A...567A..97S and Sandin 2015A&A...577A.106S!
https://apod.nasa.gov/apod/ap240306.html
#psf #pointspreadfunction #astronomy #edgeongalaxy -
Lovely picture! Pity that so many astronomers still do not understand that to investigate such a galaxy it is important to take the point spread function into account properly. I.e., read Sandin 2014A&A...567A..97S and Sandin 2015A&A...577A.106S!
https://apod.nasa.gov/apod/ap240306.html
#psf #pointspreadfunction #astronomy #edgeongalaxy -
Lovely picture! Pity that so many astronomers still do not understand that to investigate such a galaxy it is important to take the point spread function into account properly. I.e., read Sandin 2014A&A...567A..97S and Sandin 2015A&A...577A.106S!
https://apod.nasa.gov/apod/ap240306.html
#psf #pointspreadfunction #astronomy #edgeongalaxy -
#PhysicsFactlet
If you know the response function of your instrument, you can deconvolve it from your measurement to obtain a much sharper signal. But deconvolution is a dangerous procedure, as small mistakes in the kernel can result in heavy artefacts.
#Visualization #Imaging #PointSpreadFunction #Deconvolution #Physics