#littlereddots — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #littlereddots, aggregated by home.social.
-
De stipjes die de regels braken
Wat zijn die kleine rode stipjes? Het is een vraag die astronomen al sinds de lancering van de Webb Space
#ChandraRöntgentelescoop #JongeHeelal #LittleRedDots #WebbSpaceTelescope #ZwarteGaten
https://www.kuuke.nl/de-stipjes-die-de-regels-braken/ -
De stipjes die de regels braken
Wat zijn die kleine rode stipjes? Het is een vraag die astronomen al sinds de lancering van de Webb Space
#ChandraRöntgentelescoop #JongeHeelal #LittleRedDots #WebbSpaceTelescope #ZwarteGaten
https://www.kuuke.nl/de-stipjes-die-de-regels-braken/ -
Science excites me in a way very few things can. Tell me how things work.
JWST has been finding hundreds of strange compact blobs 12 billion light-years away — red in optical light, blue in UV. Formed ~600 million years after the Big Bang. Nobody knows what they are.
I love that.
#JWST #Astrophysics #Astronomy #LittleRedDots #Science
https://www.universetoday.com/articles/the-jwst-makes-some-headway-understanding-little-red-dots
-
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
-
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
-
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 #Space #jameswebbspacetelescope #littlereddots #NASA #Science #supermassiveblackhole #UK #UnitedKingdom
https://www.newsbeep.com/uk/574502/ -
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/ -
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/ -
https://www.europesays.com/ie/475749/ NASA Says Strange Red Dots in Sky Are an Unknown Class of Object That Looks Like a Huge Evil Eye #Éire #IE #Ireland #JamesWebbSpaceTelescope #LittleRedDots #nasa #Science #Space #SupermassiveBlackHole
-
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.
-
#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
-
#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
-
#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
-
#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
-
#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
-
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/ -
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/ -
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.
-
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
-
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
-
On the cover of Nature's new issue: Little Red Dots - Enigmatic objects in the distant Universe could be young black holes in a cocoon of gas.
Credit image: The CEERS Survey/The JADES Survey/PRIMER/The UNCOVER survey/Dawn JWST Archive
https://www.nature.com/nature/volumes/649/issues/8097 @nature.com
#Nature #Astrophysic #Astronomy #galaxies #JWST #Webb #Astrodon #blackholes #science #news #LittleRedDots #Universe
-
Rätsel der „Little Red Dots“ gelöst. Astronomen finden neue Erklärung für mysteriöse rote Objekte im frühen Universum. #Astronomie #JWST #LittleRedDots #SchwarzesLoch
https://www.scinexx.de/news/kosmos/raetsel-der-little-red-dots-geloest/ -
#LittleRedDots as young supermassive black holes in dense ionized cocoons: https://www.nature.com/articles/s41586-025-09900-4 -> Solving the mystery of the universe's ‘little red dots’: https://news.ku.dk/all_news/2026/01/copenhagen-researchers-make-the-front-page-of-nature-solving-the-mystery-of-the-universes-little-red-dots/
-
The Discovery of #LittleRedDots in the Local Universe - Signatures of Cool Gas Envelopes: https://arxiv.org/abs/2507.10659 -> A Black Hole Egg That Forgot to Hatch: https://aasnova.org/2026/01/13/a-black-hole-egg-that-forgot-to-hatch/
-
Weekly Update from the Open Journal of Astrophysics – 04/10/2025
It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five more papers, which brings the number in Volume 8 (2025) up to 146, and the total so far published by OJAp up to 381. At this rate Volume 8 will contain around 190 by the end of 2025.
Anyway, here are this week’s papers, starting with three published on Monday 29th September 2025.
The first paper is “Cosmic Multipoles in Galaxy Surveys II: Comparing Different Methods in Assessing the Cosmic Dipole” by Vasudev Mittal, Oliver T. Oayda and Geraint F. Lewis (U. Sydney, Australia). This is in the folder Cosmology and Nongalactic Astrophysics. It presents a comparison of methods for determining the number count dipole from cosmological surveys with a discussion of the implications for the known discordance with the CMB diple.
The overlay is here:
You can make this larger by clicking on it. The officially accepted version of this paper can be found on the arXiv here.
The second paper this week, also published on Monday 29th September, is “SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium” by Shweta Jain (University of Kentucky, USA) and 11 others based in the USA, Australia and Korea. This describes a galaxy cluster with an unusually high fraction (about 63%) of star-forming galaxies which may be a result of ram pressure stripping; the article is in the folder Astrophysics of Galaxies.
The corresponding overlay is here:
You can find the officially accepted version on arXiv here.
The third one this week, published on also published on Monday 29th September but in the folder Earth and Planetary Astrophysics, is “Comparing the Architectures of Multiplanet Systems from Kepler, K2, and TESS Data” by Robert L Royer and Jason H. Steffen (University of Nevada, USA). This paper explores the trends seen in exoplanet survey data, including Kepler, TESS, and K2 including many planetary systems with multiple planets.
The overlay is here:
You can find the officially-accepted version on arXiv here.
The next one up is “Seeding Cores: A Pathway for Nuclear Star Clusters from Bound Star Clusters in the First Billion Years” by Fred Angelo Batan Garcia (Columbia University, USA), Massimo Ricotti (University of Maryland, USA) and Kazuyuki Sugimura (Hokkaido University, Japan). This paper was published on Thursday 2nd October in the folder Astrophysics of Galaxies. This is about modelling the formation of Nuclear Star Clusters using cosmological radiation-hydrodynamic simulations, with discussion of the implications for seeding supermassive black holes and the little red dots seen by JWST.
The corresponding overlay is here:
You can find the officially accepted version of this one on arXiv here.
The fifth and last one for this week, published on Friday 3rd October 2025, is “Efficient semi-analytic modelling of Pop III star formation from Cosmic Dawn to Reionization” by Sahil Hegde and Steven R. Furlanetto (University of Californi Los Angeles, USA). This is also in the folder marked Astrophysics of Galaxies. It uses a self-consistent analytic model to trace the formation of the first stars from their birth through the first billion years of the universe’s history. complementing semi-analytic and computational methods.
You can find the officially-accepted version of this paper on arxiv here.
That concludes the report for this week. I’ll post another update next Saturday.
#arXiv250308779v2 #arXiv250620654v3 #arXiv250719581v2 #arXiv250920651v1 #arXiv250922523v1 #AstrophysicsOfGalaxies #cosmicDipoles #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #EarthAndPlanetaryAstrophysics #GalaxyCluster #galaxyFormation #galaxySurveys #JWST #Kepler #LittleRedDots #MultiplanetSystems #nuclearStarClusters #OpenAccessPublishing #OpenJournalOfAstrophysics #PopulationIIIStars #ramPressureStripping #SDSSC42028 #semiAnalyticGalaxyFormation #TheOpenJournalOfAstrophysics
-
Weekly Update from the Open Journal of Astrophysics – 04/10/2025
It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five more papers, which brings the number in Volume 8 (2025) up to 146, and the total so far published by OJAp up to 381. At this rate Volume 8 will contain around 190 by the end of 2025.
Anyway, here are this week’s papers, starting with three published on Monday 29th September 2025.
The first paper is “Cosmic Multipoles in Galaxy Surveys II: Comparing Different Methods in Assessing the Cosmic Dipole” by Vasudev Mittal, Oliver T. Oayda and Geraint F. Lewis (U. Sydney, Australia). This is in the folder Cosmology and Nongalactic Astrophysics. It presents a comparison of methods for determining the number count dipole from cosmological surveys with a discussion of the implications for the known discordance with the CMB diple.
The overlay is here:
You can make this larger by clicking on it. The officially accepted version of this paper can be found on the arXiv here.
The second paper this week, also published on Monday 29th September, is “SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium” by Shweta Jain (University of Kentucky, USA) and 11 others based in the USA, Australia and Korea. This describes a galaxy cluster with an unusually high fraction (about 63%) of star-forming galaxies which may be a result of ram pressure stripping; the article is in the folder Astrophysics of Galaxies.
The corresponding overlay is here:
You can find the officially accepted version on arXiv here.
The third one this week, published on also published on Monday 29th September but in the folder Earth and Planetary Astrophysics, is “Comparing the Architectures of Multiplanet Systems from Kepler, K2, and TESS Data” by Robert L Royer and Jason H. Steffen (University of Nevada, USA). This paper explores the trends seen in exoplanet survey data, including Kepler, TESS, and K2 including many planetary systems with multiple planets.
The overlay is here:
You can find the officially-accepted version on arXiv here.
The next one up is “Seeding Cores: A Pathway for Nuclear Star Clusters from Bound Star Clusters in the First Billion Years” by Fred Angelo Batan Garcia (Columbia University, USA), Massimo Ricotti (University of Maryland, USA) and Kazuyuki Sugimura (Hokkaido University, Japan). This paper was published on Thursday 2nd October in the folder Astrophysics of Galaxies. This is about modelling the formation of Nuclear Star Clusters using cosmological radiation-hydrodynamic simulations, with discussion of the implications for seeding supermassive black holes and the little red dots seen by JWST.
The corresponding overlay is here:
You can find the officially accepted version of this one on arXiv here.
The fifth and last one for this week, published on Friday 3rd October 2025, is “Efficient semi-analytic modelling of Pop III star formation from Cosmic Dawn to Reionization” by Sahil Hegde and Steven R. Furlanetto (University of Californi Los Angeles, USA). This is also in the folder marked Astrophysics of Galaxies. It uses a self-consistent analytic model to trace the formation of the first stars from their birth through the first billion years of the universe’s history. complementing semi-analytic and computational methods.
You can find the officially-accepted version of this paper on arxiv here.
That concludes the report for this week. I’ll post another update next Saturday.
#arXiv250308779v2 #arXiv250620654v3 #arXiv250719581v2 #arXiv250920651v1 #arXiv250922523v1 #AstrophysicsOfGalaxies #cosmicDipoles #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #EarthAndPlanetaryAstrophysics #GalaxyCluster #galaxyFormation #galaxySurveys #JWST #Kepler #LittleRedDots #MultiplanetSystems #nuclearStarClusters #OpenAccessPublishing #OpenJournalOfAstrophysics #PopulationIIIStars #ramPressureStripping #SDSSC42028 #semiAnalyticGalaxyFormation #TheOpenJournalOfAstrophysics
-
Weekly Update from the Open Journal of Astrophysics – 04/10/2025
It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five more papers, which brings the number in Volume 8 (2025) up to 146, and the total so far published by OJAp up to 381. At this rate Volume 8 will contain around 190 by the end of 2025.
Anyway, here are this week’s papers, starting with three published on Monday 29th September 2025.
The first paper is “Cosmic Multipoles in Galaxy Surveys II: Comparing Different Methods in Assessing the Cosmic Dipole” by Vasudev Mittal, Oliver T. Oayda and Geraint F. Lewis (U. Sydney, Australia). This is in the folder Cosmology and Nongalactic Astrophysics. It presents a comparison of methods for determining the number count dipole from cosmological surveys with a discussion of the implications for the known discordance with the CMB diple.
The overlay is here:
You can make this larger by clicking on it. The officially accepted version of this paper can be found on the arXiv here.
The second paper this week, also published on Monday 29th September, is “SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium” by Shweta Jain (University of Kentucky, USA) and 11 others based in the USA, Australia and Korea. This describes a galaxy cluster with an unusually high fraction (about 63%) of star-forming galaxies which may be a result of ram pressure stripping; the article is in the folder Astrophysics of Galaxies.
The corresponding overlay is here:
You can find the officially accepted version on arXiv here.
The third one this week, published on also published on Monday 29th September but in the folder Earth and Planetary Astrophysics, is “Comparing the Architectures of Multiplanet Systems from Kepler, K2, and TESS Data” by Robert L Royer and Jason H. Steffen (University of Nevada, USA). This paper explores the trends seen in exoplanet survey data, including Kepler, TESS, and K2 including many planetary systems with multiple planets.
The overlay is here:
You can find the officially-accepted version on arXiv here.
The next one up is “Seeding Cores: A Pathway for Nuclear Star Clusters from Bound Star Clusters in the First Billion Years” by Fred Angelo Batan Garcia (Columbia University, USA), Massimo Ricotti (University of Maryland, USA) and Kazuyuki Sugimura (Hokkaido University, Japan). This paper was published on Thursday 2nd October in the folder Astrophysics of Galaxies. This is about modelling the formation of Nuclear Star Clusters using cosmological radiation-hydrodynamic simulations, with discussion of the implications for seeding supermassive black holes and the little red dots seen by JWST.
The corresponding overlay is here:
You can find the officially accepted version of this one on arXiv here.
The fifth and last one for this week, published on Friday 3rd October 2025, is “Efficient semi-analytic modelling of Pop III star formation from Cosmic Dawn to Reionization” by Sahil Hegde and Steven R. Furlanetto (University of Californi Los Angeles, USA). This is also in the folder marked Astrophysics of Galaxies. It uses a self-consistent analytic model to trace the formation of the first stars from their birth through the first billion years of the universe’s history. complementing semi-analytic and computational methods.
You can find the officially-accepted version of this paper on arxiv here.
That concludes the report for this week. I’ll post another update next Saturday.
#arXiv250308779v2 #arXiv250620654v3 #arXiv250719581v2 #arXiv250920651v1 #arXiv250922523v1 #AstrophysicsOfGalaxies #cosmicDipoles #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #EarthAndPlanetaryAstrophysics #GalaxyCluster #galaxyFormation #galaxySurveys #JWST #Kepler #LittleRedDots #MultiplanetSystems #nuclearStarClusters #OpenAccessPublishing #OpenJournalOfAstrophysics #PopulationIIIStars #ramPressureStripping #SDSSC42028 #semiAnalyticGalaxyFormation #TheOpenJournalOfAstrophysics
-
Weekly Update from the Open Journal of Astrophysics – 04/10/2025
It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five more papers, which brings the number in Volume 8 (2025) up to 146, and the total so far published by OJAp up to 381. At this rate Volume 8 will contain around 190 by the end of 2025.
Anyway, here are this week’s papers, starting with three published on Monday 29th September 2025.
The first paper is “Cosmic Multipoles in Galaxy Surveys II: Comparing Different Methods in Assessing the Cosmic Dipole” by Vasudev Mittal, Oliver T. Oayda and Geraint F. Lewis (U. Sydney, Australia). This is in the folder Cosmology and Nongalactic Astrophysics. It presents a comparison of methods for determining the number count dipole from cosmological surveys with a discussion of the implications for the known discordance with the CMB diple.
The overlay is here:
You can make this larger by clicking on it. The officially accepted version of this paper can be found on the arXiv here.
The second paper this week, also published on Monday 29th September, is “SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium” by Shweta Jain (University of Kentucky, USA) and 11 others based in the USA, Australia and Korea. This describes a galaxy cluster with an unusually high fraction (about 63%) of star-forming galaxies which may be a result of ram pressure stripping; the article is in the folder Astrophysics of Galaxies.
The corresponding overlay is here:
You can find the officially accepted version on arXiv here.
The third one this week, published on also published on Monday 29th September but in the folder Earth and Planetary Astrophysics, is “Comparing the Architectures of Multiplanet Systems from Kepler, K2, and TESS Data” by Robert L Royer and Jason H. Steffen (University of Nevada, USA). This paper explores the trends seen in exoplanet survey data, including Kepler, TESS, and K2 including many planetary systems with multiple planets.
The overlay is here:
You can find the officially-accepted version on arXiv here.
The next one up is “Seeding Cores: A Pathway for Nuclear Star Clusters from Bound Star Clusters in the First Billion Years” by Fred Angelo Batan Garcia (Columbia University, USA), Massimo Ricotti (University of Maryland, USA) and Kazuyuki Sugimura (Hokkaido University, Japan). This paper was published on Thursday 2nd October in the folder Astrophysics of Galaxies. This is about modelling the formation of Nuclear Star Clusters using cosmological radiation-hydrodynamic simulations, with discussion of the implications for seeding supermassive black holes and the little red dots seen by JWST.
The corresponding overlay is here:
You can find the officially accepted version of this one on arXiv here.
The fifth and last one for this week, published on Friday 3rd October 2025, is “Efficient semi-analytic modelling of Pop III star formation from Cosmic Dawn to Reionization” by Sahil Hegde and Steven R. Furlanetto (University of Californi Los Angeles, USA). This is also in the folder marked Astrophysics of Galaxies. It uses a self-consistent analytic model to trace the formation of the first stars from their birth through the first billion years of the universe’s history. complementing semi-analytic and computational methods.
You can find the officially-accepted version of this paper on arxiv here.
That concludes the report for this week. I’ll post another update next Saturday.
#arXiv250308779v2 #arXiv250620654v3 #arXiv250719581v2 #arXiv250920651v1 #arXiv250922523v1 #AstrophysicsOfGalaxies #cosmicDipoles #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #EarthAndPlanetaryAstrophysics #GalaxyCluster #galaxyFormation #galaxySurveys #JWST #Kepler #LittleRedDots #MultiplanetSystems #nuclearStarClusters #OpenAccessPublishing #OpenJournalOfAstrophysics #PopulationIIIStars #ramPressureStripping #SDSSC42028 #semiAnalyticGalaxyFormation #TheOpenJournalOfAstrophysics
-
Weekly Update from the Open Journal of Astrophysics – 04/10/2025
It’s Saturday again, so it’s time for a summary of the week’s new papers at the Open Journal of Astrophysics. Since the last update we have published five more papers, which brings the number in Volume 8 (2025) up to 146, and the total so far published by OJAp up to 381. At this rate Volume 8 will contain around 190 by the end of 2025.
Anyway, here are this week’s papers, starting with three published on Monday 29th September 2025.
The first paper is “Cosmic Multipoles in Galaxy Surveys II: Comparing Different Methods in Assessing the Cosmic Dipole” by Vasudev Mittal, Oliver T. Oayda and Geraint F. Lewis (U. Sydney, Australia). This is in the folder Cosmology and Nongalactic Astrophysics. It presents a comparison of methods for determining the number count dipole from cosmological surveys with a discussion of the implications for the known discordance with the CMB diple.
The overlay is here:
You can make this larger by clicking on it. The officially accepted version of this paper can be found on the arXiv here.
The second paper this week, also published on Monday 29th September, is “SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium” by Shweta Jain (University of Kentucky, USA) and 11 others based in the USA, Australia and Korea. This describes a galaxy cluster with an unusually high fraction (about 63%) of star-forming galaxies which may be a result of ram pressure stripping; the article is in the folder Astrophysics of Galaxies.
The corresponding overlay is here:
You can find the officially accepted version on arXiv here.
The third one this week, published on also published on Monday 29th September but in the folder Earth and Planetary Astrophysics, is “Comparing the Architectures of Multiplanet Systems from Kepler, K2, and TESS Data” by Robert L Royer and Jason H. Steffen (University of Nevada, USA). This paper explores the trends seen in exoplanet survey data, including Kepler, TESS, and K2 including many planetary systems with multiple planets.
The overlay is here:
You can find the officially-accepted version on arXiv here.
The next one up is “Seeding Cores: A Pathway for Nuclear Star Clusters from Bound Star Clusters in the First Billion Years” by Fred Angelo Batan Garcia (Columbia University, USA), Massimo Ricotti (University of Maryland, USA) and Kazuyuki Sugimura (Hokkaido University, Japan). This paper was published on Thursday 2nd October in the folder Astrophysics of Galaxies. This is about modelling the formation of Nuclear Star Clusters using cosmological radiation-hydrodynamic simulations, with discussion of the implications for seeding supermassive black holes and the little red dots seen by JWST.
The corresponding overlay is here:
You can find the officially accepted version of this one on arXiv here.
The fifth and last one for this week, published on Friday 3rd October 2025, is “Efficient semi-analytic modelling of Pop III star formation from Cosmic Dawn to Reionization” by Sahil Hegde and Steven R. Furlanetto (University of Californi Los Angeles, USA). This is also in the folder marked Astrophysics of Galaxies. It uses a self-consistent analytic model to trace the formation of the first stars from their birth through the first billion years of the universe’s history. complementing semi-analytic and computational methods.
You can find the officially-accepted version of this paper on arxiv here.
That concludes the report for this week. I’ll post another update next Saturday.
#arXiv250308779v2 #arXiv250620654v3 #arXiv250719581v2 #arXiv250920651v1 #arXiv250922523v1 #AstrophysicsOfGalaxies #cosmicDipoles #CosmologyAndNonGalacticAstrophysics #DiamondOpenAccess #EarthAndPlanetaryAstrophysics #GalaxyCluster #galaxyFormation #galaxySurveys #JWST #Kepler #LittleRedDots #MultiplanetSystems #nuclearStarClusters #OpenAccessPublishing #OpenJournalOfAstrophysics #PopulationIIIStars #ramPressureStripping #SDSSC42028 #semiAnalyticGalaxyFormation #TheOpenJournalOfAstrophysics
-
Not Just a Dot - the complex UV morphology and underlying properties of Little Red Dots: https://arxiv.org/abs/2411.14383 -> #LittleRedDots frequently reveal clumpy morphologies, and some of these also bear the hallmarks of active black holes: https://www.astronomie.nl/nieuws/en/little-red-dots-frequently-reveal-clumpy-morphologies-and-some-of-these-also-bear-the-hallmarks-of-active-black-holes-4687
-
Schwarze Löcher, getarnt als Sterne? Astronomen postulieren neue Theorie zu rätselhaften " roten Punkten" im frühen Kosmos. #Astronomie #SchwarzeLoecher #JWST #LittleRedDots
https://www.scinexx.de/news/kosmos/schwarze-loecher-getarnt-als-sterne/ -
Lonely Little Red Dots - Challenges to the Active Galactic Nucleus Nature of #LittleRedDots through Their Clustering and Spectral Energy Distributions: https://iopscience.iop.org/article/10.3847/2041-8213/adf73d -> All Alone With No AGN to Call Home? New Results for Little Red Dots: https://aasnova.org/2025/08/29/all-alone-with-no-agn-to-call-home-new-results-for-little-red-dots/
-
#LittleRedDots #EarlyGalaxies
"JWST fully solves the mystery of “Little Red Dots”"This plainly contradicts ☠️ the article 🔗https://www.astronomy.com/science/little-red-dots-are-still-a-big-mystery/ *Fully solves*? What's going on? 🤔
Perhaps a confirmation bias from "Start With a Bang"? This misleads the readers into thinking that all the problems are solved...
🔗https://bigthink.com/starts-with-a-bang/jwst-solves-mystery-little-red-dots/
