#pulsars — Public Fediverse posts

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, also published on Tuesday 12th 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 “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.

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, also published on Tuesday 12th 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 “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.

https://www.europesays.com/ch-fr/139984/ Des astronomes ont découvert 15 nouveaux pulsars dans un amas globulaire proche de la Terre #47Tucanae #astronomes #Astronomie #Astrophysique #cosmos #découverte #Espace #ÉtoileàNeutrons #étoiles #Galaxie #InformationsSurDesOrdinateursPortatifs #nouvelles #NouvellesDeL'astronomie #NouvellesDeL'espace #NouvellesScientifiques #pulsars #rapport #revues #Science #ScienceAndTechnology #Sciences #SciencesEtTechnologies #Suisse #Technologies #Technology #Télescope #test

https://www.europesays.com/ie/485808/ In 1967, a Cambridge student spotted a ‘scruffy’ printout blip that revealed the universe’s mysterious ticking stars #Astronomy #CambridgeUniversity #CosmicClocks #Éire #GravitationalWaves #IE #Ireland #JocelynBellBurnell #NeutronStars #Pulsars #Science #SpaceExploration

New in the #VirtualObservatory: “Flare param. from K2 & TESS data of PSR J1023+0038” by Zhang L.-Y. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/960/20
#VisibleAstronomy #Photometry #StellarFlares #Pulsars

Entdeckt unsere neue Pressemitteilung!

Check out our new press release!

➡️ https://www.mpifr-bonn.mpg.de/pressemeldungen/2026/radiosignale-aus-dem-randbereich-extremer-sterne

#Astrophysik #Radioastronomie #Pulsare #MPIfR #Wissenschaft #Universe #Cosmos #Entdeckung #Astronomy #RadioAstronomy #Pulsars #MPIfR #Science #Space #Cosmos #Astrophysics

Entdeckt unsere neue Pressemitteilung!

Check out our new press release!

➡️ https://www.mpifr-bonn.mpg.de/pressemeldungen/2026/radiosignale-aus-dem-randbereich-extremer-sterne

#Astrophysik #Radioastronomie #Pulsare #MPIfR #Wissenschaft #Universe #Cosmos #Entdeckung #Astronomy #RadioAstronomy #Pulsars #MPIfR #Science #Space #Cosmos #Astrophysics

Entdeckt unsere neue Pressemitteilung!

Check out our new press release!

➡️ https://www.mpifr-bonn.mpg.de/pressemeldungen/2026/radiosignale-aus-dem-randbereich-extremer-sterne

#Astrophysik #Radioastronomie #Pulsare #MPIfR #Wissenschaft #Universe #Cosmos #Entdeckung #Astronomy #RadioAstronomy #Pulsars #MPIfR #Science #Space #Cosmos #Astrophysics

Entdeckt unsere neue Pressemitteilung!

Check out our new press release!

➡️ https://www.mpifr-bonn.mpg.de/pressemeldungen/2026/radiosignale-aus-dem-randbereich-extremer-sterne

#Astrophysik #Radioastronomie #Pulsare #MPIfR #Wissenschaft #Universe #Cosmos #Entdeckung #Astronomy #RadioAstronomy #Pulsars #MPIfR #Science #Space #Cosmos #Astrophysics

Entdeckt unsere neue Pressemitteilung!

Check out our new press release!

➡️ https://www.mpifr-bonn.mpg.de/pressemeldungen/2026/radiosignale-aus-dem-randbereich-extremer-sterne

#Astrophysik #Radioastronomie #Pulsare #MPIfR #Wissenschaft #Universe #Cosmos #Entdeckung #Astronomy #RadioAstronomy #Pulsars #MPIfR #Science #Space #Cosmos #Astrophysics

https://www.europesays.com/ie/401392/ NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion #astrophysics #AstrophysicsDivision #CrabNebula #Éire #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #IE #Ireland #Nebulae #NeutronStars #Pulsars #Science #Space #SupernovaRemnants

NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion

A quarter-century after its first observations of the full Crab Nebula, NASA’s Hubble Space Telescope has taken a…
#NewsBeep #News #Science #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GB #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #Pulsars #SupernovaRemnants #UK #UnitedKingdom
https://www.newsbeep.com/uk/491827/

https://www.europesays.com/uk/846102/ NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #pulsars #Science #SupernovaRemnants #UK #UnitedKingdom

NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion https://science.nasa.gov/missions/hubble/nasas-hubble-revisits-crab-nebula-to-track-25-years-of-expansion/ #NASA #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #Pulsars #SupernovaRemnants

NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion https://science.nasa.gov/missions/hubble/nasas-hubble-revisits-crab-nebula-to-track-25-years-of-expansion/ #NASA #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #Pulsars #SupernovaRemnants

NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion https://science.nasa.gov/missions/hubble/nasas-hubble-revisits-crab-nebula-to-track-25-years-of-expansion/ #NASA #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #Pulsars #SupernovaRemnants

NASA’s Hubble Revisits Crab Nebula to Track 25 Years of Expansion https://science.nasa.gov/missions/hubble/nasas-hubble-revisits-crab-nebula-to-track-25-years-of-expansion/ #NASA #Astrophysics #AstrophysicsDivision #CrabNebula #EmissionNebulae #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Nebulae #NeutronStars #Pulsars #SupernovaRemnants

A huge cloud of #darkmatter may be lurking near our #solarsystem
Researchers found what seems to be a cloud of dark matter about 60 million times mass of sun in our galactic neighbourhood
Dark matter interacts with regular matter via gravity, so if a dark matter sub-halo is near pair of #pulsars, it should stretch their orbits slightly. That is exactly what Chakrabarti and colleagues found a little more than 3000 light years from our solar system.
https://www.newscientist.com/article/2513924-a-huge-cloud-of-dark-matter-may-be-lurking-near-our-solar-system/
https://archive.is/kp6aK

It's the anniversary of Jocelyn Bell Burnell's 1968 paper (later she'd be robbed of the #Nobel physics prize by her supervisor).

That iconic picture of her always reminds me of this modern meme, which incidentally would've been an appropriate reaction to the Nobel committee's behaviour:

#pulsars #memes #physics

📡 LGM-1

On this day 58 years ago (Feb 24, 1968), Nature published the announcement of pulsar discovery! Jocelyn Bell Burnell detected regular pulses with a 1.337s period from Vulpecula – source CP 1919, jokingly nicknamed LGM-1 (Little Green Men).

The discovery confirmed the existence of neutron stars. The 1974 Nobel went to Hewish & Ryle – Bell Burnell was excluded. In 2018 she received the Breakthrough Prize and donated the full $3M to scholarships.

#astronomy #radioastronomy #pulsars

SNRs are classified by their emission structure. Shell-type remnants show limb-brightened radio emission. Crab-like remnants are pulsar wind nebulae. Composite remnants combine both a shell and a central pulsar wind nebula.

#SNR #Pulsars #Astronomy

New in the #VirtualObservatory: “Pulsar Vela X-1 Pulse-to-Pulse Approach” by Du Y.-J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A175
#GammaRayAstronomy #Accretion #Pulsars

New in the #VirtualObservatory: “Pulsar Vela X-1 Pulse-to-Pulse Approach” by Du Y.-J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A175
#GammaRayAstronomy #Accretion #Pulsars

New in the #VirtualObservatory: “Pulsar Vela X-1 Pulse-to-Pulse Approach” by Du Y.-J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A175
#GammaRayAstronomy #Accretion #Pulsars

New in the #VirtualObservatory: “Pulsar Vela X-1 Pulse-to-Pulse Approach” by Du Y.-J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/706/A175
#GammaRayAstronomy #Accretion #Pulsars

New in the #VirtualObservatory: “Spectral index distrib. of RACS ATNF pulsars” by Anumarlapudi A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/956/28
#Interferometry #Surveys #RadioSources #Pulsars

Supplement to the Open Journal of Astrophysics – “Pulsar Science with the SKAO”

It’s been a busy day at the Open Journal of Astrophysics as we’ve published 12 related papers in the form of our first ever Supplement; officially it is Vol. 8 Supplement Issue 1. The idea of a Supplement is to publish a set of related papers together. I imagine it might be of interest for publishing conference proceedings, etc.

The topic of this Supplement is Pulsar Science with the Square Kilometre Array Observatory and it includes updates to the Science Case for the SKAO, the previous version of which is 10 years old. All the papers are indendependently peer-reviewed, which took some organizing and a lot of time because many potential referees are themselves members of the SKA Pulsar Science Working Group! Anyway, the final versions of all the papers hit the arXiv this morning so I published them all today.

Rather than include all 12 papers in tomorrow’s Saturday update I decided just to show the overlay for the overview of the special issue, which is here:

The following paragraph describes the content of the supplement and includes links to the other 11 papers in the issue.

The large instantaneous sensitivity, a wide frequency coverage and flexible observation modes with large number of beams in the sky are the main features of the upcoming SKA observatory’s two telescopes, the SKA-Low and the SKA-Mid, which are located on two different continents. Owing to these capabilities, the SKAO telescopes are going to be a game-changer for radio astronomy in general and pulsar astronomy in particular. The eleven articles in this special issue on pulsar science with the SKA Observatory describe its impact on different areas of pulsar science. Phase 1 of the rollout of the SKAO telescope is likely to double the known pulsar population in new surveys described in the first three papers (Keane et al. 2025; Abbate et al. 2025; Bagchi et al. 2025). These new discoveries will improve our understanding of the dynamics, evolution and gas content of globular clusters and the black hole at the centre of the Milky Way galaxy apart from increasing the samples for each of different kinds of radio emitting neutron stars (Levin et al. 2025). The larger population sample will enhance our understanding of the magneto-ionic interstellar medium (Tiburzi et al. 2025; Xu et al. 2025), the pulsar magnetosphere (Oswald et al. 2025) and pulsar wind nebulae (Gelfand et al. 2025). Moreover, the discovery of exotic neutron star systems will test gravity theory ever more stringently (Krishnan et al. 2025) and will probe fundamental physics at sub-atomic level (Basu et al. 2025). Finally, this enhanced sample is likely to make the sky portrait sharper in nano-Hertz gravitational waves impacting on our understanding of the Universe in a fundamental way (Shannon et al. 2025). In summary, the papers in this special issue describe the way the upcoming SKA Observatory’s telescopes address fundamental physics through the study of pulsars and gravitational waves.

#DiamondOpenAccessPublishing #OpenAccessPublishing #OpenJournalOfAstrophysics #PulsarScience #pulsars #SKAO #SquareKilometreArray #SquareKilometreArrayObservatory #TheOpenJournalOfAstrophysics

Supplement to the Open Journal of Astrophysics – “Pulsar Science with the SKAO”

It’s been a busy day at the Open Journal of Astrophysics as we’ve published 12 related papers in the form of our first ever Supplement; officially it is Vol. 8 Supplement Issue 1. The idea of a Supplement is to publish a set of related papers together. I imagine it might be of interest for publishing conference proceedings, etc.

The topic of this Supplement is Pulsar Science with the Square Kilometre Array Observatory and it includes updates to the Science Case for the SKAO, the previous version of which is 10 years old. All the papers are indendependently peer-reviewed, which took some organizing and a lot of time because many potential referees are themselves members of the SKA Pulsar Science Working Group! Anyway, the final versions of all the papers hit the arXiv this morning so I published them all today.

Rather than include all 12 papers in tomorrow’s Saturday update I decided just to show the overlay for the overview of the special issue, which is here:

The following paragraph describes the content of the supplement and includes links to the other 11 papers in the issue.

The large instantaneous sensitivity, a wide frequency coverage and flexible observation modes with large number of beams in the sky are the main features of the upcoming SKA observatory’s two telescopes, the SKA-Low and the SKA-Mid, which are located on two different continents. Owing to these capabilities, the SKAO telescopes are going to be a game-changer for radio astronomy in general and pulsar astronomy in particular. The eleven articles in this special issue on pulsar science with the SKA Observatory describe its impact on different areas of pulsar science. Phase 1 of the rollout of the SKAO telescope is likely to double the known pulsar population in new surveys described in the first three papers (Keane et al. 2025; Abbate et al. 2025; Bagchi et al. 2025). These new discoveries will improve our understanding of the dynamics, evolution and gas content of globular clusters and the black hole at the centre of the Milky Way galaxy apart from increasing the samples for each of different kinds of radio emitting neutron stars (Levin et al. 2025). The larger population sample will enhance our understanding of the magneto-ionic interstellar medium (Tiburzi et al. 2025; Xu et al. 2025), the pulsar magnetosphere (Oswald et al. 2025) and pulsar wind nebulae (Gelfand et al. 2025). Moreover, the discovery of exotic neutron star systems will test gravity theory ever more stringently (Krishnan et al. 2025) and will probe fundamental physics at sub-atomic level (Basu et al. 2025). Finally, this enhanced sample is likely to make the sky portrait sharper in nano-Hertz gravitational waves impacting on our understanding of the Universe in a fundamental way (Shannon et al. 2025). In summary, the papers in this special issue describe the way the upcoming SKA Observatory’s telescopes address fundamental physics through the study of pulsars and gravitational waves.

#DiamondOpenAccessPublishing #OpenAccessPublishing #OpenJournalOfAstrophysics #PulsarScience #pulsars #SKAO #SquareKilometreArray #SquareKilometreArrayObservatory #TheOpenJournalOfAstrophysics

NASA’s Webb Observes Exoplanet Whose Composition Defies Explanation https://science.nasa.gov/missions/webb/nasas-webb-observes-exoplanet-whose-composition-defies-explanation/ #NASA #Astrophysics #ExoplanetAtmosphere #Exoplanets #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #NeutronStars #PlanetaryEnvironmentsAtmospheres #Pulsars #ScienceResearch

NASA’s Webb Observes Exoplanet Whose Composition Defies Explanation https://science.nasa.gov/missions/webb/nasas-webb-observes-exoplanet-whose-composition-defies-explanation/ #NASA #ExoplanetAtmosphere #Exoplanets #JamesWebbSpaceTelescopeJWST #NeutronStars #PlanetaryEnvironmentsAtmospheres #Pulsars

New in the #VirtualObservatory: “SpiderCat, Compact Binary Millisecond Pulsars” by Koljonen K.I.I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/994/8
#GammaRayAstronomy #Pulsars #XRayBinaryStars

New in the #VirtualObservatory: “SpiderCat, Compact Binary Millisecond Pulsars” by Koljonen K.I.I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/994/8
#GammaRayAstronomy #Pulsars #XRayBinaryStars

New in the #VirtualObservatory: “SpiderCat, Compact Binary Millisecond Pulsars” by Koljonen K.I.I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/994/8
#GammaRayAstronomy #Pulsars #XRayBinaryStars

New in the #VirtualObservatory: “SpiderCat, Compact Binary Millisecond Pulsars” by Koljonen K.I.I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/994/8
#GammaRayAstronomy #Pulsars #XRayBinaryStars

New in the #VirtualObservatory: “SpiderCat, Compact Binary Millisecond Pulsars” by Koljonen K.I.I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/994/8
#GammaRayAstronomy #Pulsars #XRayBinaryStars

🆕 New selected research highlight ✨

Einstein@Home probes the Galactic center gamma-ray glow 🌌

The volunteer computing project @einsteinathome searched for members of a proposed, hidden millisecond pulsar population near the center of the Milky Way and discovered four new pulsars.

ℹ️ https://www.aei.mpg.de/1318665/einstein-home-probes-the-galactic-center-gamma-ray-glow

📄 https://iopscience.iop.org/article/10.3847/1538-4357/ae0b5c [Open Access publication in The Astrophysical Journal]

#CitizenScience #Astronomy #Pulsars #Astrophysics #Physics #Discovery #OpenAccess

Einstein@Home probes the Galactic center gamma-ray glow

The results from an @einsteinathome search for a proposed, hidden millisecond pulsar population near the center of the Milky Way have been published in The Astrophysical Journal today.

The results include the discovery of four previously unknown gamma-ray pulsars.

📄 Publication: https://iopscience.iop.org/article/10.3847/1538-4357/ae0b5c

💬 News item on our homepage: https://einsteinathome.org/de/content/einsteinhome-probes-galactic-center-gamma-ray-glow

Many thanks to all of our volunteers whose computing time contributions made this work possible!

#CitizenScience #Astronomy #Pulsars #Astrophysics #Physics #Discovery

Well, here's some very exciting news!

I've been wanting to share this for a few months, but had to await the pre-print to drop.

A NEW GLITCH EVENT ON A MILLISECOND PULSAR HAS BEEN OBSERVED!

These events are extremely rare - only two others since MSPs were discovered.

Glitches are more commonly observed in the younger, canonical pulsar population as MSPs are much older and should have sorted out these types of disruptive events over their evolution.

That's what makes them so stable!

OR ... maybe they're not as stable as we once thought ...

This new paper predicts that we should see a glitch per MSP once every 400 years or so.

Glitches, profile changes .... as our instruments become more sensitive and datasets expand in time, we're starting to see that MSPs might not be as stable as we once thought ...

That's really important!

https://www.spaceaustralia.com/news/new-glitch-millisecond-pulsar

📸 NASA SVS

#SpaceAustralia #RadioAstronomy #Astrodon #Astrophysics #Science #Pulsars

I am so very excited to share this story. Def. a career highlight!

Having the opportunity to sit down and have a one-on-one candid chat with the woman who discovered pulsars and changed the course of astrophysics, leading to me being extremely passionate about this topic and eventually moving into a career of pulsar astronomy. Yeah, this was big.

I hope you enjoy this interview, where Prof. Bell Burnell offers some personal insight into the history of the big discovery as well as the legacy of one of astronomy’s most iconic and influential figures.

What an honour it is to tell this story!

https://www.spaceaustralia.com/feature/interview-dame-professor-jocelyn-bell-burnell

📸 University of Cambridge

#SpaceAustralia #RadioAstronomy #Pulsars #JocelynBellBurnell #Astrophysics #Science #Astrodon

I am so very excited to share this story. Def. a career highlight!

Having the opportunity to sit down and have a one-on-one candid chat with the woman who discovered pulsars and changed the course of astrophysics, leading to me being extremely passionate about this topic and eventually moving into a career of pulsar astronomy. Yeah, this was big.

I hope you enjoy this interview, where Prof. Bell Burnell offers some personal insight into the history of the big discovery as well as the legacy of one of astronomy’s most iconic and influential figures.

What an honour it is to tell this story!

https://www.spaceaustralia.com/feature/interview-dame-professor-jocelyn-bell-burnell

📸 University of Cambridge

#SpaceAustralia #RadioAstronomy #Pulsars #JocelynBellBurnell #Astrophysics #Science #Astrodon

I am so very excited to share this story. Def. a career highlight!

Having the opportunity to sit down and have a one-on-one candid chat with the woman who discovered pulsars and changed the course of astrophysics, leading to me being extremely passionate about this topic and eventually moving into a career of pulsar astronomy. Yeah, this was big.

I hope you enjoy this interview, where Prof. Bell Burnell offers some personal insight into the history of the big discovery as well as the legacy of one of astronomy’s most iconic and influential figures.

What an honour it is to tell this story!

https://www.spaceaustralia.com/feature/interview-dame-professor-jocelyn-bell-burnell

📸 University of Cambridge

#SpaceAustralia #RadioAstronomy #Pulsars #JocelynBellBurnell #Astrophysics #Science #Astrodon

I am so very excited to share this story. Def. a career highlight!

Having the opportunity to sit down and have a one-on-one candid chat with the woman who discovered pulsars and changed the course of astrophysics, leading to me being extremely passionate about this topic and eventually moving into a career of pulsar astronomy. Yeah, this was big.

I hope you enjoy this interview, where Prof. Bell Burnell offers some personal insight into the history of the big discovery as well as the legacy of one of astronomy’s most iconic and influential figures.

What an honour it is to tell this story!

https://www.spaceaustralia.com/feature/interview-dame-professor-jocelyn-bell-burnell

📸 University of Cambridge

#SpaceAustralia #RadioAstronomy #Pulsars #JocelynBellBurnell #Astrophysics #Science #Astrodon

I am so very excited to share this story. Def. a career highlight!

Having the opportunity to sit down and have a one-on-one candid chat with the woman who discovered pulsars and changed the course of astrophysics, leading to me being extremely passionate about this topic and eventually moving into a career of pulsar astronomy. Yeah, this was big.

I hope you enjoy this interview, where Prof. Bell Burnell offers some personal insight into the history of the big discovery as well as the legacy of one of astronomy’s most iconic and influential figures.

What an honour it is to tell this story!

https://www.spaceaustralia.com/feature/interview-dame-professor-jocelyn-bell-burnell

📸 University of Cambridge

#SpaceAustralia #RadioAstronomy #Pulsars #JocelynBellBurnell #Astrophysics #Science #Astrodon

In 2018 she was awarded the $3 million Breakthrough Prize in Fundamental Physics for her discovery of #pulsars & leadership in science. She donated money to the IOP for PhD scholarships for underrepresented people including women, ethnic minorities & refugee students in physics!

https://minouette.etsy.com/listing/178998272

🧵5/5

Today was a good day. I got to meet one of my heroes.

Got to spend one-on-one time with the woman who discovered pulsars, Dame Prof. Jocelyn Bell Burnell, and interview her for a #SpaceAustralia article 🥺🥺🥺

And she signed a copy of my first-ever PhD paper which I will now have framed and remember forever! 😭😭😭

She is the most humble, nicest person. Just kindness, personified. And such an extremely interesting life - as you can imagine.

I'll publish my article and interview with her in about 12 hours from now (around 8:30am Sydney time) - so keep an eye out for it.

Thanks to Manisha Caleb who took this photo of us.

#Pulsars #RadioAstronomy #JocelynBellBurnell #Astrodon #Science #Astrophysics

Today was a good day. I got to meet one of my heroes.

Got to spend one-on-one time with the woman who discovered pulsars, Dame Prof. Jocelyn Bell Burnell, and interview her for a #SpaceAustralia article 🥺🥺🥺

And she signed a copy of my first-ever PhD paper which I will now have framed and remember forever! 😭😭😭

She is the most humble, nicest person. Just kindness, personified. And such an extremely interesting life - as you can imagine.

I'll publish my article and interview with her in about 12 hours from now (around 8:30am Sydney time) - so keep an eye out for it.

Thanks to Manisha Caleb who took this photo of us.

#Pulsars #RadioAstronomy #JocelynBellBurnell #Astrodon #Science #Astrophysics

Today was a good day. I got to meet one of my heroes.

Got to spend one-on-one time with the woman who discovered pulsars, Dame Prof. Jocelyn Bell Burnell, and interview her for a #SpaceAustralia article 🥺🥺🥺

And she signed a copy of my first-ever PhD paper which I will now have framed and remember forever! 😭😭😭

She is the most humble, nicest person. Just kindness, personified. And such an extremely interesting life - as you can imagine.

I'll publish my article and interview with her in about 12 hours from now (around 8:30am Sydney time) - so keep an eye out for it.

Thanks to Manisha Caleb who took this photo of us.

#Pulsars #RadioAstronomy #JocelynBellBurnell #Astrodon #Science #Astrophysics

Today was a good day. I got to meet one of my heroes.

Got to spend one-on-one time with the woman who discovered pulsars, Dame Prof. Jocelyn Bell Burnell, and interview her for a #SpaceAustralia article 🥺🥺🥺

And she signed a copy of my first-ever PhD paper which I will now have framed and remember forever! 😭😭😭

She is the most humble, nicest person. Just kindness, personified. And such an extremely interesting life - as you can imagine.

I'll publish my article and interview with her in about 12 hours from now (around 8:30am Sydney time) - so keep an eye out for it.

Thanks to Manisha Caleb who took this photo of us.

#Pulsars #RadioAstronomy #JocelynBellBurnell #Astrodon #Science #Astrophysics

Today was a good day. I got to meet one of my heroes.

Got to spend one-on-one time with the woman who discovered pulsars, Dame Prof. Jocelyn Bell Burnell, and interview her for a #SpaceAustralia article 🥺🥺🥺

And she signed a copy of my first-ever PhD paper which I will now have framed and remember forever! 😭😭😭

She is the most humble, nicest person. Just kindness, personified. And such an extremely interesting life - as you can imagine.

I'll publish my article and interview with her in about 12 hours from now (around 8:30am Sydney time) - so keep an eye out for it.

Thanks to Manisha Caleb who took this photo of us.

#Pulsars #RadioAstronomy #JocelynBellBurnell #Astrodon #Science #Astrophysics

👀👀👀

Some really interesting ideas here (pre-print) from Michael Kramer and Simon Johnston (SJ works with us!).

Unlike the conventional concept of radio emissions in millisecond pulsars coming from polar caps, could they also be coming from regions where gamma-rays are emitted?!

If the idea is correct, then somehow the theorists are going to have to figure out how to get coherent emissions from outside the polar cap (which is gonna be fun). But if so we should see more MSPs!

https://arxiv.org/abs/2510.05778

#Pulsars #Astrophysics #RadioAstronomy #Astrodon