#littlereddots — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #littlereddots, aggregated by home.social.
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This month on All Space Considered, Griffith Observatory welcomed Dr. Joel Leja, Associate Professor of astronomy & astrophysics at The Pennsylvania State University, to discuss his research on the processes of galaxy formation derived from a combination of statistics, machine learning, and deep galaxy surveys with telescopes like the James Webb Space Telescope: https://www.youtube.com/watch?v=W49e3MSsg14 - in particular he discussed the new, mysterious, very bright, and seemingly impossible objects at the edge of the universe which have been puzzling all of us, the #LittleRedDots
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This month on All Space Considered, Griffith Observatory welcomed Dr. Joel Leja, Associate Professor of astronomy & astrophysics at The Pennsylvania State University, to discuss his research on the processes of galaxy formation derived from a combination of statistics, machine learning, and deep galaxy surveys with telescopes like the James Webb Space Telescope: https://www.youtube.com/watch?v=W49e3MSsg14 - in particular he discussed the new, mysterious, very bright, and seemingly impossible objects at the edge of the universe which have been puzzling all of us, the #LittleRedDots
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No evolution in the number density of #LittleRedDots from cosmic dawn to cosmic noon: https://arxiv.org/abs/2606.30253 -> Backyard Black Holes: https://astrobites.org/2026/07/09/backyard-lrds/
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No evolution in the number density of #LittleRedDots from cosmic dawn to cosmic noon: https://arxiv.org/abs/2606.30253 -> Backyard Black Holes: https://astrobites.org/2026/07/09/backyard-lrds/
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#LittleRedDots as Globular Clusters in Formation: https://iopscience.iop.org/article/10.3847/2041-8213/ae6dae -> Little Red Dots Do James Webb Podem Ser Aglomerados Blobulares Recém-Nascidos: https://spacetoday.substack.com/p/little-red-dots-do-james-webb-podem - estudo de John Chisholm e colegas propõe que os enigmáticos pontos vermelhos flagrados pelo telescópio escondam, no lugar de buracos negros supermassivos, sejam aglomerados globulares!
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#LittleRedDots as Globular Clusters in Formation: https://iopscience.iop.org/article/10.3847/2041-8213/ae6dae -> Little Red Dots Do James Webb Podem Ser Aglomerados Blobulares Recém-Nascidos: https://spacetoday.substack.com/p/little-red-dots-do-james-webb-podem - estudo de John Chisholm e colegas propõe que os enigmáticos pontos vermelhos flagrados pelo telescópio escondam, no lugar de buracos negros supermassivos, sejam aglomerados globulares!
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#LittleRedDots as Hidden Neutrino Sources: https://arxiv.org/abs/2601.11203 -> The little red galaxies that may be sending us neutrinos: https://www.kyoto-u.ac.jp/en/research-news/2026-06-30
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#LittleRedDots as Hidden Neutrino Sources: https://arxiv.org/abs/2601.11203 -> The little red galaxies that may be sending us neutrinos: https://www.kyoto-u.ac.jp/en/research-news/2026-06-30
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"Connecting the Dots: UV-bright Companions of Little Red Dots as Lyman–Werner Sources Enabling Direct-collapse Black Hole Formation"
🔗 https://iopscience.iop.org/article/10.3847/2041-8213/ae58a5
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"Connecting the Dots: UV-bright Companions of Little Red Dots as Lyman–Werner Sources Enabling Direct-collapse Black Hole Formation"
🔗 https://iopscience.iop.org/article/10.3847/2041-8213/ae58a5
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"Connecting the Dots: UV-bright Companions of Little Red Dots as Lyman–Werner Sources Enabling Direct-collapse Black Hole Formation"
🔗 https://iopscience.iop.org/article/10.3847/2041-8213/ae58a5
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"Connecting the Dots: UV-bright Companions of Little Red Dots as Lyman–Werner Sources Enabling Direct-collapse Black Hole Formation"
🔗 https://iopscience.iop.org/article/10.3847/2041-8213/ae58a5
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"Connecting the Dots: UV-bright Companions of Little Red Dots as Lyman–Werner Sources Enabling Direct-collapse Black Hole Formation"
🔗 https://iopscience.iop.org/article/10.3847/2041-8213/ae58a5
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JWST Evidence That We Found Exotic Black Hole Stars After All - YouTube
https://www.youtube.com/watch?v=ZtPiCh0NBt8 -
JWST Evidence That We Found Exotic Black Hole Stars After All - YouTube
https://www.youtube.com/watch?v=ZtPiCh0NBt8 -
The nature of `little blue dots': https://arxiv.org/abs/2606.12509 -> "We [...] propose that LBDs are lower-column analogues of LRDs within a common gas-cocooned AGN sequence." #LittleRedDots
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The nature of `little blue dots': https://arxiv.org/abs/2606.12509 -> "We [...] propose that LBDs are lower-column analogues of LRDs within a common gas-cocooned AGN sequence." #LittleRedDots
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James Webb Space Telescope finds evidence the mysterious ‘little red dots’ are black hole stars
When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #blackhole #blackholestar #Gravitationallens #JamesWebbSpaceTelescope #Littlereddot #LittleRedDots #star #supermassiveblackhole #UniversityofTexasatAustin #V.Kokorev #VasilyKokorev
https://www.newsbeep.com/us/699693/ -
James Webb Space Telescope finds evidence the mysterious ‘little red dots’ are black hole stars
When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #blackhole #blackholestar #Gravitationallens #JamesWebbSpaceTelescope #Littlereddot #LittleRedDots #star #supermassiveblackhole #UniversityofTexasatAustin #V.Kokorev #VasilyKokorev
https://www.newsbeep.com/us/699693/ -
Major Little Red Dot Revelation Just Challenged Galactic Models - YouTube
https://www.youtube.com/watch?v=4IidxRZ47M0 -
Major Little Red Dot Revelation Just Challenged Galactic Models - YouTube
https://www.youtube.com/watch?v=4IidxRZ47M0 -
Misurata la massa di un buco nero agli albori dell'universo. È stata ottenuta la misura diretta della massa di un buco nero situato in uno dei "piccoli punti rossi" (Little Red Dots, Lrd) rilevati dal telescopio spaziale James Webb. L'oggetto si trova in una galassia risalente a un’epoca in cui l’universo aveva solo 700 milioni di anni.
#Abell2744QSO1 #Astronomia #buchineriprimordiali #Cosmologia #Evoluzionegalassie #LittleRedDots #telescópioJamesWebb
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Misurata la massa di un buco nero agli albori dell'universo. È stata ottenuta la misura diretta della massa di un buco nero situato in uno dei "piccoli punti rossi" (Little Red Dots, Lrd) rilevati dal telescopio spaziale James Webb. L'oggetto si trova in una galassia risalente a un’epoca in cui l’universo aveva solo 700 milioni di anni.
#Abell2744QSO1 #Astronomia #buchineriprimordiali #Cosmologia #Evoluzionegalassie #LittleRedDots #telescópioJamesWebb
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Misurata la massa di un buco nero agli albori dell'universo. È stata ottenuta la misura diretta della massa di un buco nero situato in uno dei "piccoli punti rossi" (Little Red Dots, Lrd) rilevati dal telescopio spaziale James Webb. L'oggetto si trova in una galassia risalente a un’epoca in cui l’universo aveva solo 700 milioni di anni.
#Abell2744QSO1 #Astronomia #buchineriprimordiali #Cosmologia #Evoluzionegalassie #LittleRedDots #telescópioJamesWebb
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Misurata la massa di un buco nero agli albori dell'universo. È stata ottenuta la misura diretta della massa di un buco nero situato in uno dei "piccoli punti rossi" (Little Red Dots, Lrd) rilevati dal telescopio spaziale James Webb. L'oggetto si trova in una galassia risalente a un’epoca in cui l’universo aveva solo 700 milioni di anni.
#Abell2744QSO1 #Astronomia #buchineriprimordiali #Cosmologia #Evoluzionegalassie #LittleRedDots #telescópioJamesWebb
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https://www.europesays.com/at/182354/ Welt der Physik: Wie viel wiegt ein „Little Red Dot“? #AT #Austria #Gravitationslinse #Gravitationslinseneffekt #JamesWebbSpaceTelescope #JamesWebbTeleskop #JamesWebbWeltraumteleskop #LittleRedDots #Masse #Österreich #SchwarzesLoch #Science #Science&Technology #Technik #Technology #Wissenschaft #Wissenschaft&Technik
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Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 app…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #Abell2744-QSO1 #Astronomy #BoyuanLiu #Cosmology #earlyuniverse #GalaxyFormation #JamesWebbSpaceTelescope #LittleRedDots #metal-poorgalaxies #primordialblackholes #Research #Science #SpaceNews #supermassiveblackholes
https://www.newsbeep.com/us/635713/ -
Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 app…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #Abell2744-QSO1 #Astronomy #BoyuanLiu #Cosmology #earlyuniverse #GalaxyFormation #JamesWebbSpaceTelescope #LittleRedDots #metal-poorgalaxies #primordialblackholes #Research #Science #SpaceNews #supermassiveblackholes
https://www.newsbeep.com/us/635713/ -
Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 appears just 700…
#NewsBeep #News #Space #Abell2744-QSO1 #astronomy #BoyuanLiu #Cosmology #EarlyUniverse #GalaxyFormation #jameswebbspacetelescope #littlereddots #metal-poorgalaxies #primordialblackholes #research #Science #SpaceNews #supermassiveblackholes #UK #UnitedKingdom
https://www.newsbeep.com/uk/577310/ -
Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 appears just 700…
#NewsBeep #News #Space #Abell2744-QSO1 #Astronomy #BoyuanLiu #CA #Canada #Cosmology #earlyuniverse #GalaxyFormation #Jameswebbspacetelescope #littlereddots #metal-poorgalaxies #primordialblackholes #research #Science #SpaceNews #supermassiveblackholes
https://www.newsbeep.com/ca/661224/ -
https://www.europesays.com/uk/951378/ Massive black hole from the early universe has astronomers looking back to the Big Bang #Abell2744QSO1 #Astronomy #BoyuanLiu #Cosmology #EarlyUniverse #GalaxyFormation #JamesWebbSpaceTelescope #LittleRedDots #MetalPoorGalaxies #Physics #PrimordialBlackHoles #Research #Science #SpaceNews #SupermassiveBlackHoles #UK #UnitedKingdom
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https://www.europesays.com/ie/477713/ Massive black hole from the early universe has astronomers looking back to the Big Bang #Abell2744QSO1 #Astronomy #BoyuanLiu #cosmology #EarlyUniverse #Éire #GalaxyFormation #IE #Ireland #JamesWebbSpaceTelescope #LittleRedDots #MetalPoorGalaxies #PrimordialBlackHoles #Research #Science #SpaceNews #SupermassiveBlackHoles
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NASA Says Strange Red Dots in Sky Are an Unknown Class of Object That Looks Like a Huge Evil Eye
There’s a fresh twist in the mystery of the “little red dots.” Astronomers say they’ve found a new specimen,…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #JamesWebbSpaceTelescope #LittleRedDots #NASA #supermassiveblackhole
https://www.newsbeep.com/us/632126/ -
Little Red Dots and Their Progenitors from Direct Collapse Black Holes: https://iopscience.iop.org/article/10.3847/1538-4357/ae3725 -> #LittleRedDots - New Clues from the Early Universe: https://tacc.utexas.edu/news/latest-news/2026/04/16/little-red-dots-new-clues-from-the-early-universe/ - TACC supercomputer simulations shed light on the mysterious origins of these enigmatic cosmic objects.
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Little Red Dots and Their Progenitors from Direct Collapse Black Holes: https://iopscience.iop.org/article/10.3847/1538-4357/ae3725 -> #LittleRedDots - New Clues from the Early Universe: https://tacc.utexas.edu/news/latest-news/2026/04/16/little-red-dots-new-clues-from-the-early-universe/ - TACC supercomputer simulations shed light on the mysterious origins of these enigmatic cosmic objects.
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#UniWien:
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Die kalte und staubige Seite der Galaxienentstehung
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"Neue Simulationen bestätigen kosmologisches Standardmodell – COLIBRE macht Galaxien-Entwicklung auch hörbar"14.4.2026
#Astrophysik #COLIBRE #Galaxie #Gas #JWST #Kosmologie #LittleRedDots #LCDM #SchwarzesLoch #Simulation #Standardmodell #Staub #Universum
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#UniWien:
"
Die kalte und staubige Seite der Galaxienentstehung
"
"Neue Simulationen bestätigen kosmologisches Standardmodell – COLIBRE macht Galaxien-Entwicklung auch hörbar"14.4.2026
#Astrophysik #COLIBRE #Galaxie #Gas #JWST #Kosmologie #LittleRedDots #LCDM #SchwarzesLoch #Simulation #Standardmodell #Staub #Universum
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#UniWien:
"
Die kalte und staubige Seite der Galaxienentstehung
"
"Neue Simulationen bestätigen kosmologisches Standardmodell – COLIBRE macht Galaxien-Entwicklung auch hörbar"14.4.2026
#Astrophysik #COLIBRE #Galaxie #Gas #JWST #Kosmologie #LittleRedDots #LCDM #SchwarzesLoch #Simulation #Standardmodell #Staub #Universum
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#UniWien:
"
Die kalte und staubige Seite der Galaxienentstehung
"
"Neue Simulationen bestätigen kosmologisches Standardmodell – COLIBRE macht Galaxien-Entwicklung auch hörbar"14.4.2026
#Astrophysik #COLIBRE #Galaxie #Gas #JWST #Kosmologie #LittleRedDots #LCDM #SchwarzesLoch #Simulation #Standardmodell #Staub #Universum
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#UniWien:
"
Die kalte und staubige Seite der Galaxienentstehung
"
"Neue Simulationen bestätigen kosmologisches Standardmodell – COLIBRE macht Galaxien-Entwicklung auch hörbar"14.4.2026
#Astrophysik #COLIBRE #Galaxie #Gas #JWST #Kosmologie #LittleRedDots #LCDM #SchwarzesLoch #Simulation #Standardmodell #Staub #Universum
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James Webb Space Telescope Spots Huge Black Holes Where They Shouldn’t Be, Adding to the Mystery of “Little Red Dots”
James Webb Space Telescope (JWST) observations have revealed unexpectedly overmassive black holes at the hearts of a pair…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Space #activegalacticnucleus #dwarfgalaxies #JamesWebbSpaceTelescope #LittleRedDots #Science #supermassiveblackhole
https://www.newsbeep.com/us/563152/ -
https://www.europesays.com/be-nl/30665/ James Webb-telescoop ontdekt raadselachtige rode stipjes #BE #België #Belgium #JamesWebb #JWST #LittleRedDots #LRD #LRDs #Science #ScienceAndTechnology #ScienceAndTechnology #Technologie #Technology #Wetenschap #WetenschapEnTechnologie #WetenschapTechnologie
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Then it would seem (to novice me) that the collapse of a gigantic star tossing off unusual elements found in globular clusters would form the black hole in the center of larger galaxies which dwarf galaxies travel with. The spin of the gigantic star would seed the spin of the black hole and its emergent galaxy.
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Then it would seem (to novice me) that the collapse of a gigantic star tossing off unusual elements found in globular clusters would form the black hole in the center of larger galaxies which dwarf galaxies travel with. The spin of the gigantic star would seed the spin of the black hole and its emergent galaxy.
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Record Breaking Massive Black Holes Challenge Modern Models - YouTube
https://www.youtube.com/watch?v=58K_z0MeDdk -
Record Breaking Massive Black Holes Challenge Modern Models - YouTube
https://www.youtube.com/watch?v=58K_z0MeDdk -
Weekly Update from the Open Journal of Astrophysics – 24/01/2026
It’s Saturday once more so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further three papers, bringing the number in Volume 9 (2026) to 14 and the total so far published by OJAp up to 462. This week was slightly affected by a Federal holiday in the USA on January 19th; there were no arXiv announcements the following day.
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.
The first paper to report this week is “The Properties of Little Red Dot Galaxies in the ASTRID Simulation” by Patrick LaChance, Rupert A. C. Croft, Tiziana Di Matteo & Yihao Zhou (Carnegie Mellon U.), Fabio Pacucci (Harvard-Smithsonian CfA), Yueying Ni (U. Michigan Ann Arbor), Nianyi Chen (Princeton U.) and Simeon Bird (UC Riverside), all based in the USA. This paper was published on Monday 19th January 2026 in the folder Cosmology and Nongalactic Astrophysics; the study analyses mock observations of “Little Red Dot” galaxies created from the ASTRID simulation, having high stellar masses and containing massive black holes; not all features match real observations.
The overlay is here:
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
https://fediscience.org/@OJ_Astro/115921308789068125
The second paper is “Angular bispectrum of matter number counts in cosmic structures” by Thomas Montandon (U. Montpellier, France), Enea Di Dio (U. Genève, Switzerland), Cornelius Rampf (Ruđer Bošković Institute, Croatia) and Julian Adamek (U. Zürich, Switzerland). This was published on Wednesday January 21st, also in the folder Cosmology and Nongalactic Astrophysics. This paper presents thee first full-sky computation of the angular bispectrum in second-order perturbation theory, offering insights into the Universe’s initial conditions, gravity, and cosmological parameters. The results align well with simulations.
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/115932387870297108
Next, and last for this week, we have “The Kinematic Properties of TŻO Candidate HV 11417 with Gaia DR3” by Anna J. G. O’Grady (Carnegie Mellon University, USA). This was published on Wednesday 21st January 2026 in the folder Solar and Stellar Astrophysics. This work uses updated data to confirm that HV 11417, a potential Thorne-Żytkow Object, is probably part of the Small Magellanic Cloud and qualifies as a runaway star.
The overlay is here:
The official version can be found on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/115932444483985982
That concludes the update for this week. I will do another next Saturday.
#angularBispectrum #arXiv250105422v3 #arXiv251123368v2 #AstridSimulations #AstrophysicsOfGalaxies #bispectrum #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #DiamondOpenAccessPublishing #GaiaDR3 #largeScaleStructureOfTheUniverse #LittleRedDots #OpenAccess #OpenAccessPublishing #OpenJournalOfAstrophysics #SolarAndStellarAstrophysics #TheOpenJournalOfAstrophysics #ThorneŻytkowObjects
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Weekly Update from the Open Journal of Astrophysics – 24/01/2026
It’s Saturday once more so time for another update of activity at the Open Journal of Astrophysics. Since the last update we have published a further three papers, bringing the number in Volume 9 (2026) to 14 and the total so far published by OJAp up to 462. This week was slightly affected by a Federal holiday in the USA on January 19th; there were no arXiv announcements the following day.
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.
The first paper to report this week is “The Properties of Little Red Dot Galaxies in the ASTRID Simulation” by Patrick LaChance, Rupert A. C. Croft, Tiziana Di Matteo & Yihao Zhou (Carnegie Mellon U.), Fabio Pacucci (Harvard-Smithsonian CfA), Yueying Ni (U. Michigan Ann Arbor), Nianyi Chen (Princeton U.) and Simeon Bird (UC Riverside), all based in the USA. This paper was published on Monday 19th January 2026 in the folder Cosmology and Nongalactic Astrophysics; the study analyses mock observations of “Little Red Dot” galaxies created from the ASTRID simulation, having high stellar masses and containing massive black holes; not all features match real observations.
The overlay is here:
You can find the officially accepted version on arXiv here and the announcement on Fediverse here:
https://fediscience.org/@OJ_Astro/115921308789068125
The second paper is “Angular bispectrum of matter number counts in cosmic structures” by Thomas Montandon (U. Montpellier, France), Enea Di Dio (U. Genève, Switzerland), Cornelius Rampf (Ruđer Bošković Institute, Croatia) and Julian Adamek (U. Zürich, Switzerland). This was published on Wednesday January 21st, also in the folder Cosmology and Nongalactic Astrophysics. This paper presents thee first full-sky computation of the angular bispectrum in second-order perturbation theory, offering insights into the Universe’s initial conditions, gravity, and cosmological parameters. The results align well with simulations.
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/115932387870297108
Next, and last for this week, we have “The Kinematic Properties of TŻO Candidate HV 11417 with Gaia DR3” by Anna J. G. O’Grady (Carnegie Mellon University, USA). This was published on Wednesday 21st January 2026 in the folder Solar and Stellar Astrophysics. This work uses updated data to confirm that HV 11417, a potential Thorne-Żytkow Object, is probably part of the Small Magellanic Cloud and qualifies as a runaway star.
The overlay is here:
The official version can be found on arXiv here and the Fediverse announcement is here:
https://fediscience.org/@OJ_Astro/115932444483985982
That concludes the update for this week. I will do another next Saturday.
#angularBispectrum #arXiv250105422v3 #arXiv251123368v2 #AstridSimulations #AstrophysicsOfGalaxies #bispectrum #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #DiamondOpenAccessPublishing #GaiaDR3 #largeScaleStructureOfTheUniverse #LittleRedDots #OpenAccess #OpenAccessPublishing #OpenJournalOfAstrophysics #SolarAndStellarAstrophysics #TheOpenJournalOfAstrophysics #ThorneŻytkowObjects
