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#agn — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #agn, aggregated by home.social.

  1. Weekly Update from the Open Journal of Astrophysics – 02/05/2026

    Here we are, on schedule, with another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further seven papers, bringing the number in Volume 9 (2026) to 94 and the total so far published by OJAp up to 542. I checked the corresponding update for last year (on 3rd May 2025), and we’ve had an increase from 54 to 94 in papers published (about 74%) between the first four months of 2025 and the first four months of 2026.

    I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter (which nobody should be using); these announcements also show the DOI for each paper.

    The first paper to report this week is “DESI-DR1 3 × 2-pt analysis: consistent cosmology across weak lensing surveys” by Anna Porredon (CIEMAT, Madrid, Spain) and 72 others (DESI Colllaboration). This paper was published on Tuesday 28th April in the folder Cosmology and Nongalactic Astrophysics. This paper presents a joint cosmological analysis of galaxy clustering and gravitational lensing observations, providing consistent constraints on cosmological parameters. The analysis also introduces a new blinding procedure to prevent confirmation bias. See this post for news of an important DESI milestone.

    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/116480407578621011

    The second paper for this week, also published on Tuesday 28th April but in the folder High-Energy Astrophysical Phenomena is “Masers and Broad-Line Mapping Favor Magnetically-Dominated AGN Accretion Disks” by Philip F. Hopkins (Caltech, USA), Dalya Baron (Stanford U., USA) and Joanna M. Piotrowska (Caltech). This one presents a new constraint on supermassive black hole accretion disks physics, suggesting that outer regions are likely in a ‘hyper-magnetized’ state, as thermal or radiation pressure models appear inconsistent.

    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/116480505354195181

    Next one up, the third paper of the week, is “Galaxy mergers and disk angular momentum evolution: stellar halos as a critical test” by Eric F. Bell (U. Michigan, Ann Arbor, USA), Richard D’Souza (Vatican Observatory), Monica Valluri & Katya Gozman (U. Michigan). This was published on Wednesday 29th April in the folder Astrophysics of Galaxies. The paper argues that satellite accretion impacts the angular momentum evolution of galaxies, often causing significant reorientation. This process is detectable in Milky Way-mass galaxies so the idea is testable observationally.

    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/116486649450860283

    The fourth paper this week, published on Thursday April 30th, is “Time-Dilation Methods for Extreme Multiscale Timestepping Problems” by Philip F. Hopkins and Elias R. Most (Caltech, USA). This paper is in the folder Instrumentation and Methods for Astrophysics: it presents a new method for astrophysical simulations that modulates time evolution with a variable dilation/stretch factor, improving efficiency and accuracy in modeling processes across different scales.

    The overlay is here:

    The finally accepted version of this paper can be found here and the Mastodon announcement follows:

    https://fediscience.org/@OJ_Astro/116492226856595031

    The fifth article of this week was also published on Thursday 30th April, but in the folder Astrophysics of Galaxies. The title is “Cosmic Rays on Galaxy Scales: Progress and Pitfalls for CR-MHD Dynamical Models” and the author is Philip F. Hopkins (Caltech, USA) who has three papers featured this week. The paper presents an overview of cosmic ray (CR) modeling, highlighting its influence on galactic physics and star formation. It addresses previous modeling errors and presents new methods for full-spectrum dynamics.

    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/116492282488422075

    The sixth paper of the week is “Baryonification III: An accurate analytical model for the dispersion measure probability density function of fast radio bursts” by MohammadReza Torkamani (Universität Bonn, Germany) and 8 others based in Germany, Switzerland, UK and Sweden. This article was also published on Thursday April 30th in the folder Cosmology and Nongalactic Astrophysics. It presents a framework for predicting dispersion measures of fast radio bursts using the baryonification model, providing a cost-effective alternative to hydrodynamical simulations. The model’s accuracy is validated through full numerical simulations. The overlay is here:

    You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

    https://fediscience.org/@OJ_Astro/116492403170125062

    Seventh and finally for this week we have “The stellar and dark matter distributions in early-type galaxies measured by stacked weak gravitational lensing” by Momoka Fujikawa and Masamune Oguri (Chiba University, Japan). This study uses weak gravitational lensing to investigate stellar mass and dark matter density in red galaxies, suggesting a stronger feedback effect than current simulations predict. This was published on Friday 1st May 2026 in the folder Astrophysics of Galaxies. The overlay is here:

    You can find the officially-accepted version on arXiv here and the Fediverse announcement is here:

    https://fediscience.org/@OJ_Astro/116497987401632687

    And that concludes this week’s update. I’ll do another one at the end of next week. Will Vol. 9 have reached a hundred by then?

    P.S. Just a reminder that, thanks to the efforts of a member of our Editorial Board, the Open Journal of Astrophysics now has a Wikipedia page.

    #32PtAnalysis #ActiveGalacticNuclei #AGN #arXiv250907104v2 #arXiv251009756v2 #arXiv251209342v2 #arXiv251215960v3 #arXiv260106253v2 #arXiv260118784v2 #arXiv260424965v1 #AstrophysicsOfGalaxies #baryonification #ComputationalAstrophysics #cosmicRays #CosmologyAndNonGalacticAstrophysics #DarkEnergySpectroscopicInstrument #DESI #DiamondOpenAccess #DiamondOpenAccessPublishing #DispersionMeasures #fastRadioBursts #galacticCosmicRays #galaxyEvolution #galaxyFormation #galaxyMergers #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #magnetohydrodynamics #masers #MilkyWay #OpenAccess #OpenAccessPublishing #SolarAndStellarAstrophysics #SolarCorona #supermassiveBlackHoles #VeraCRubinObservatory #weakGravitationalLensing #wikipedia
  2. Weekly Update from the Open Journal of Astrophysics – 02/05/2026

    Here we are, on schedule, with another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further seven papers, bringing the number in Volume 9 (2026) to 94 and the total so far published by OJAp up to 542. I checked the corresponding update for last year (on 3rd May 2025), and we’ve had an increase from 54 to 94 in papers published (about 74%) between the first four months of 2025 and the first four months of 2026.

    I will continue to include the posts made on our Mastodon account (on Fediscience) to encourage you to visit it. Mastodon is a really excellent service, and a more than adequate replacement for X/Twitter (which nobody should be using); these announcements also show the DOI for each paper.

    The first paper to report this week is “DESI-DR1 3 × 2-pt analysis: consistent cosmology across weak lensing surveys” by Anna Porredon (CIEMAT, Madrid, Spain) and 72 others (DESI Colllaboration). This paper was published on Tuesday 28th April in the folder Cosmology and Nongalactic Astrophysics. This paper presents a joint cosmological analysis of galaxy clustering and gravitational lensing observations, providing consistent constraints on cosmological parameters. The analysis also introduces a new blinding procedure to prevent confirmation bias. See this post for news of an important DESI milestone.

    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/116480407578621011

    The second paper for this week, also published on Tuesday 28th April but in the folder High-Energy Astrophysical Phenomena is “Masers and Broad-Line Mapping Favor Magnetically-Dominated AGN Accretion Disks” by Philip F. Hopkins (Caltech, USA), Dalya Baron (Stanford U., USA) and Joanna M. Piotrowska (Caltech). This one presents a new constraint on supermassive black hole accretion disks physics, suggesting that outer regions are likely in a ‘hyper-magnetized’ state, as thermal or radiation pressure models appear inconsistent.

    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/116480505354195181

    Next one up, the third paper of the week, is “Galaxy mergers and disk angular momentum evolution: stellar halos as a critical test” by Eric F. Bell (U. Michigan, Ann Arbor, USA), Richard D’Souza (Vatican Observatory), Monica Valluri & Katya Gozman (U. Michigan). This was published on Wednesday 29th April in the folder Astrophysics of Galaxies. The paper argues that satellite accretion impacts the angular momentum evolution of galaxies, often causing significant reorientation. This process is detectable in Milky Way-mass galaxies so the idea is testable observationally.

    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/116486649450860283

    The fourth paper this week, published on Thursday April 30th, is “Time-Dilation Methods for Extreme Multiscale Timestepping Problems” by Philip F. Hopkins and Elias R. Most (Caltech, USA). This paper is in the folder Instrumentation and Methods for Astrophysics: it presents a new method for astrophysical simulations that modulates time evolution with a variable dilation/stretch factor, improving efficiency and accuracy in modeling processes across different scales.

    The overlay is here:

    The finally accepted version of this paper can be found here and the Mastodon announcement follows:

    https://fediscience.org/@OJ_Astro/116492226856595031

    The fifth article of this week was also published on Thursday 30th April, but in the folder Astrophysics of Galaxies. The title is “Cosmic Rays on Galaxy Scales: Progress and Pitfalls for CR-MHD Dynamical Models” and the author is Philip F. Hopkins (Caltech, USA) who has three papers featured this week. The paper presents an overview of cosmic ray (CR) modeling, highlighting its influence on galactic physics and star formation. It addresses previous modeling errors and presents new methods for full-spectrum dynamics.

    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/116492282488422075

    The sixth paper of the week is “Baryonification III: An accurate analytical model for the dispersion measure probability density function of fast radio bursts” by MohammadReza Torkamani (Universität Bonn, Germany) and 8 others based in Germany, Switzerland, UK and Sweden. This article was also published on Thursday April 30th in the folder Cosmology and Nongalactic Astrophysics. It presents a framework for predicting dispersion measures of fast radio bursts using the baryonification model, providing a cost-effective alternative to hydrodynamical simulations. The model’s accuracy is validated through full numerical simulations. The overlay is here:

    You can find the officially-accepted version on arXiv here and the Mastodon announcement here:

    https://fediscience.org/@OJ_Astro/116492403170125062

    Seventh and finally for this week we have “The stellar and dark matter distributions in early-type galaxies measured by stacked weak gravitational lensing” by Momoka Fujikawa and Masamune Oguri (Chiba University, Japan). This study uses weak gravitational lensing to investigate stellar mass and dark matter density in red galaxies, suggesting a stronger feedback effect than current simulations predict. This was published on Friday 1st May 2026 in the folder Astrophysics of Galaxies. The overlay is here:

    You can find the officially-accepted version on arXiv here and the Fediverse announcement is here:

    https://fediscience.org/@OJ_Astro/116497987401632687

    And that concludes this week’s update. I’ll do another one at the end of next week. Will Vol. 9 have reached a hundred by then?

    P.S. Just a reminder that, thanks to the efforts of a member of our Editorial Board, the Open Journal of Astrophysics now has a Wikipedia page.

    #32PtAnalysis #ActiveGalacticNuclei #AGN #arXiv250907104v2 #arXiv251009756v2 #arXiv251209342v2 #arXiv251215960v3 #arXiv260106253v2 #arXiv260118784v2 #arXiv260424965v1 #AstrophysicsOfGalaxies #baryonification #ComputationalAstrophysics #cosmicRays #CosmologyAndNonGalacticAstrophysics #DarkEnergySpectroscopicInstrument #DESI #DiamondOpenAccess #DiamondOpenAccessPublishing #DispersionMeasures #fastRadioBursts #galacticCosmicRays #galaxyEvolution #galaxyFormation #galaxyMergers #HighEnergyAstrophysicalPhenomena #InstrumentationAndMethodsForAstrophysics #magnetohydrodynamics #masers #MilkyWay #OpenAccess #OpenAccessPublishing #SolarAndStellarAstrophysics #SolarCorona #supermassiveBlackHoles #VeraCRubinObservatory #weakGravitationalLensing #wikipedia
  3. ReveaLLAGN 1 - JWST Emission-Line Spectra Reveal Low-Luminosity #AGN with UV-Deficient SEDs and Warm Molecular Gas: arxiv.org/abs/2601.16977 -> James Webb Space Telescope uncovers secret supermassive black holes that escape traditional detection: space.com/astronomy/james-webb

  4. #TachyonBeam #astronomy #galaxies #SMBH #AGN

    A rare example of three active galactic nuclei in three merging galaxies has been discovered using two radio telescopes: the VLA and the VLBA. The triple system is cataloged as J1218/1219+1035. This targeted study, conducted by a team of researchers at various radio frequencies, has identified only the third case of a triple active galactic nucleus, the first confirmed through radio observations.

    english.tachyonbeam.com/2025/1

  5. The First Triple Radio Active Galactic Nucleus in an Ongoing Galaxy Merger: iopscience.iop.org/article/10. -> A unique discovery - astronomers identify the first triple radio #AGN / Radio Black Hole Trio Lights Up in Rare Galaxy Merger: dvidshub.net/news/555300/uniqu / public.nrao.edu/news/radio-bla - first confirmed system of three radio-bright active galactic nuclei reveals how supermassive black holes grow as galaxies collide.

  6. #ESA:
    "
    Flaring black hole whips up ultra-fast winds
    "
    "Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60 000 km per second."

    esa.int/Science_Exploration/Sp

    9.12.2025

    #AGN #BlackHole #JAXA #NGC3783 #Röntenstrahlung #SchwarzesLoch #SMBH #SRON #Weltraumteleskop #XMM #XRISM #Xray

  7. #ESA:
    "
    Flaring black hole whips up ultra-fast winds
    "
    "Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60 000 km per second."

    esa.int/Science_Exploration/Sp

    9.12.2025

    #AGN #BlackHole #JAXA #NGC3783 #Röntenstrahlung #SchwarzesLoch #SMBH #SRON #Weltraumteleskop #XMM #XRISM #Xray

  8. #ESA:
    "
    Flaring black hole whips up ultra-fast winds
    "
    "Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60 000 km per second."

    esa.int/Science_Exploration/Sp

    9.12.2025

    #AGN #BlackHole #JAXA #NGC3783 #Röntenstrahlung #SchwarzesLoch #SMBH #SRON #Weltraumteleskop #XMM #XRISM #Xray

  9. #ESA:
    "
    Flaring black hole whips up ultra-fast winds
    "
    "Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60 000 km per second."

    esa.int/Science_Exploration/Sp

    9.12.2025

    #AGN #BlackHole #JAXA #NGC3783 #Röntenstrahlung #SchwarzesLoch #SMBH #SRON #Weltraumteleskop #XMM #XRISM #Xray

  10. #ESA:
    "
    Flaring black hole whips up ultra-fast winds
    "
    "Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60 000 km per second."

    esa.int/Science_Exploration/Sp

    9.12.2025

    #AGN #BlackHole #JAXA #NGC3783 #Röntenstrahlung #SchwarzesLoch #SMBH #SRON #Weltraumteleskop #XMM #XRISM #Xray

  11. "Zwart gat vertoont helderste uitbarsting ooit nadat het een enorme ster opslokt"

    -> "De uitbarsting kwam van een actieve kern van een sterrenstelsel (een active galactic nucleus of kortweg AGN) op bijna 20 miljard lichtjaar afstand van de aarde."

    (Via #newscientist_NL ) #zwartgat #AGN
    newscientist.nl/nieuws/zwart-g

  12. Eruption record dans un noyau galactique actif
    🔸 Cette éruption est 30 fois plus puissante que la plus puissante éruption transitoire de noyau galactique actif (AGN) jamais enregistrée
    ca-se-passe-la-haut.fr/2025/11
    #science #astronomie #astrophysique #NAG #galaxie #éruption #trounoir #AGN

  13. Eruption record dans un noyau galactique actif
    🔸 Cette éruption est 30 fois plus puissante que la plus puissante éruption transitoire de noyau galactique actif (AGN) jamais enregistrée
    ca-se-passe-la-haut.fr/2025/11
    #science #astronomie #astrophysique #NAG #galaxie #éruption #trounoir #AGN

  14. Eruption record dans un noyau galactique actif
    🔸 Cette éruption est 30 fois plus puissante que la plus puissante éruption transitoire de noyau galactique actif (AGN) jamais enregistrée
    ca-se-passe-la-haut.fr/2025/11
    #science #astronomie #astrophysique #NAG #galaxie #éruption #trounoir #AGN

  15. Video ~ Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo

    Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo #AGN #Classic #Davido #Junior #Niger #Nollywood #Obumneme #Odonwodo #Okoli #Pope #River Nollywood Actress, Okoli Mather Chinonye Well Known As Okoli Classic In Her Verified Instagram Page Made A Status Post Few…

    osazuwaakonedo.news/video-okol

  16. Video ~ Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo

    Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo #AGN #Classic #Davido #Junior #Niger #Nollywood #Obumneme #Odonwodo #Okoli #Pope #River Nollywood Actress, Okoli Mather Chinonye Well Known As Okoli Classic In Her Verified Instagram Page Made A Status Post Few…

    osazuwaakonedo.news/video-okol

  17. Video ~ Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo

    Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo #AGN #Classic #Davido #Junior #Niger #Nollywood #Obumneme #Odonwodo #Okoli #Pope #River Nollywood Actress, Okoli Mather Chinonye Well Known As Okoli Classic In Her Verified Instagram Page Made A Status Post Few…

    osazuwaakonedo.news/video-okol

  18. Video ~ Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo

    Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo #AGN #Classic #Davido #Junior #Niger #Nollywood #Obumneme #Odonwodo #Okoli #Pope #River Nollywood Actress, Okoli Mather Chinonye Well Known As Okoli Classic In Her Verified Instagram Page Made A Status Post Few…

    osazuwaakonedo.news/video-okol

  19. Video ~ Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo

    Okoli Classic Begs God For Life, Junior Pope Confirmed Dead, 3 Missing After 2 Boats Collide In River Niger ~ OsazuwaAkonedo #AGN #Classic #Davido #Junior #Niger #Nollywood #Obumneme #Odonwodo #Okoli #Pope #River Nollywood Actress, Okoli Mather Chinonye Well Known As Okoli Classic In Her Verified Instagram Page Made A Status Post Few…

    osazuwaakonedo.news/video-okol

  20. #MPIA:
    "
    Nahaufnahme eines supermassereichen Schwarzen Lochs in Aktion

    Eine neue Art der Beobachtung zeigt, was die Kerne aktiver Galaxien glühen lässt.
    "
    mpia.de/aktuelles/wissenschaft

    17.1.2025

    #AGN #Astronomie #Galaxie #LBT #Messier77 #MountGraham #NGC1068 #OVMS+ #SchwarzesLoch #UofA

  21. #MPIA:
    "
    Nahaufnahme eines supermassereichen Schwarzen Lochs in Aktion

    Eine neue Art der Beobachtung zeigt, was die Kerne aktiver Galaxien glühen lässt.
    "
    mpia.de/aktuelles/wissenschaft

    17.1.2025

    #AGN #Astronomie #Galaxie #LBT #Messier77 #MountGraham #NGC1068 #OVMS+ #SchwarzesLoch #UofA

  22. Aviation weather for Angoon seaplane base (USA) is “PAGN 081956Z AUTO 00000KT 10SM CLR 10/08 A3019 RMK AO2 SLP211 T01000083 PWINO $” : See what it means on bigorre.org/aero/meteo/pagn/en #angoon #usa #angoonseaplanebase #pagn #agn #metar #aviation #aviationweather #avgeek #seaplanebase vl

  23. Aviation weather for Angoon seaplane base (USA) is “PAGN 081956Z AUTO 00000KT 10SM CLR 10/08 A3019 RMK AO2 SLP211 T01000083 PWINO $” : See what it means on bigorre.org/aero/meteo/pagn/en #angoon #usa #angoonseaplanebase #pagn #agn #metar #aviation #aviationweather #avgeek #seaplanebase vii3

  24. What if I tell you about a galaxy that has not one but two supermassive black holes? What if I tell you that these SMBH orbit very close to each other, at a distance of about 0.07 l-y? And, would you believe me if I tell you that these two, at the center of this galaxy, emanate a relativistic jet producing an active galactic nucleus? This all happens at the center of this well-known galaxy: M81.

    #astronomy #astrophysics #astrophotography #space #nightsky #outdoors #galaxy #AGN #Astrodon

  25. Une équipe d’astrophysiciens chinois vient de trouver l’existence d’une corrélation entre la vitesse de rotation des trous noirs supermassifs et le taux de formation des étoiles dans leur galaxie hôte.
    Par Éric Simon
    ca-se-passe-la-haut.fr/2025/02
    #astrophysique #science #trounoir #galaxies #étoiles #Chine #masse #vitesse #AGN

  26. Tripling the Census of Dwarf #AGN Candidates Using DESI Early Data: arxiv.org/abs/2411.00091 -> DESI Uncovers 300 New Intermediate-Mass Black Holes Plus 2500 New Active Black Holes in Dwarf Galaxies: noirlab.edu/public/news/noirla

  27. Früher Schwerkraftgigant im Verdauungsschlaf. Astronomen entdecken erstmals ein "überfressenes", aber pausierendes Schwarzes Loch. #SchwarzesLoch #Astronomie #JWST #AGN
    scinexx.de/news/kosmos/frueher

  28. Astronomers led by Eduardo Bañados from MPIA have found an active galactic nucleus in the early universe with a particle jet pointing directly towards us. This is extremely unlikely, so there must have been a lot more #AGN like this with #jets in that era. Jets support the growth of associated black holes, which means: There were better conditions for the growth of black holes in the early universe than previously thought

    mpia.de/news/science/2024-15-z

  29. Citizen scientists' free form chats about astronomical objects can be used (with #MachineLearning) to help identify radio galaxies.

    We used the forum threads corresponding to #RadioGalaxyZoo discussions, and identified galaxy morphology of active galactic nuclei, showing improvement over using the images alone.
    #AGN #Astronomy

    To appear in #PASA
    arxiv.org/abs/2310.08103

  30. "MPE: Regelmäßige Mahlzeiten für massereiches Schwarzes Loch"

    "Die eROSITA-Himmelsdurchmusterung entdeckt wiederkehrende Röntgeneruptionen in einer ansonsten ruhigen Galaxie. Eine Pressemitteilung des Max-Planck-Instituts für extraterrestrische Physik (MPE)."

    raumfahrer.net/mpe-regelmaessi

    #Astronomie #AGN #Akkretion #Akkretionsscheibe #ATCA #eROSITA #J045620 #MPE #Röntgenstrahlung #Röntgenteleskop #SchwarzesLoch

  31. "
    MPIA: Ein massereiches Schwarzes Loch erwacht – “live”

    Astronomen sehen das Erwachen eines massereichen Schwarzen Lochs in Echtzeit. Eine Pressemitteilung des Max-Planck-Instituts für Astronomie (MPIA).
    "
    raumfahrer.net/mpia-ein-masser

    19.6.2024

    #Astronomie #2MASS #AGN #ALeRCE #eROSITA #ESO #GALEX #Gezeitenstörung #MPIA #SchwarzesLoch #SDSS #VLT #WISE #Xshooter #ZTF

  32. "Schnell akkretierendes #SchwarzesLoch im frühen Universum zufällig entdeckt"

    "#eROSITA-Teleskop findet im Röntgenlicht .. hellen Quasar, der nur ~ 800 Millionen Jahre nach .. Urknall mit .. extrem hohen Geschwindigkeit Materie ansammelt. Eine Pressemitteilung des Max-Planck-Instituts für extraterrestrische Physik (#MPE)."

    raumfahrer.net/schnell-akkreti

    #Astronomie #AGN #Akkretionsscheibe #eFEDS #Himmelsdurchmusterung #Quasar #Röntgenastronomie #Seyfert1Galaxie #SpektrRG #SRG

    31.1.2023

  33. First eROSITA sky-survey data release - the largest ever catalogue of high-energy cosmic sources

    mpe.mpg.de/7989698/news2024013

    Check out this animation: panning through the eROSITA sky and pinpointing some major actors of our Galactic and Extragalactic Cosmography ⤵️⤵️⤵️

    #eROSITA #xray #sky #survey #highenergy #astrophysics #astronomy #astrodon #SpectrumRG #spacecraft #space #science #research #galaxy #galaxies #AGN #blackholes #stars #MilkyWay #Galaxy #binarystars #pulsar #pulsars #supernovae #video