#initial-mass-function — Public Fediverse posts

New Gaia data is challenging a 50-year-old assumption about how stars and galaxies form

Astronomers found that star clusters do not always form th…
#NewsBeep #News #Science #Astronomy #AU #Australia #breakmass #Cosmology #distantgalaxies #Gaiamission #galaxymass #initialmassfunction #Jameswebbspacetelescope #MilkyWay #MolecularClouds #openstarclusters #research #SpaceNews #Starformation #starformationrates #Stellarevolution #stellar-mass #UniversityofMissouri
https://www.newsbeep.com/au/852622/

New Gaia data is challenging a 50-year-old assumption about how stars and galaxies form

Astronomers found that star clusters do not always form th…
#NewsBeep #News #Science #Astronomy #AU #Australia #breakmass #Cosmology #distantgalaxies #Gaiamission #galaxymass #initialmassfunction #Jameswebbspacetelescope #MilkyWay #MolecularClouds #openstarclusters #research #SpaceNews #Starformation #starformationrates #Stellarevolution #stellar-mass #UniversityofMissouri
https://www.newsbeep.com/au/852622/

Direct Evidence for Stellar Initial Mass Function Variation in the Milky Way: https://iopscience.iop.org/article/10.3847/2041-8213/ae7444 -> Gaia Data Show That the #InitialMassFunction Is Not Universal: https://aasnova.org/2026/07/08/gaia-data-show-that-the-initial-mass-function-is-not-universal/

Direct Evidence for Stellar Initial Mass Function Variation in the Milky Way: https://iopscience.iop.org/article/10.3847/2041-8213/ae7444 -> Gaia Data Show That the #InitialMassFunction Is Not Universal: https://aasnova.org/2026/07/08/gaia-data-show-that-the-initial-mass-function-is-not-universal/

Direct Evidence for Stellar Initial Mass Function Variation in the Milky Way: https://iopscience.iop.org/article/10.3847/2041-8213/ae7444 -> Gaia Data Show That the #InitialMassFunction Is Not Universal: https://aasnova.org/2026/07/08/gaia-data-show-that-the-initial-mass-function-is-not-universal/

Direct Evidence for Stellar Initial Mass Function Variation in the Milky Way: https://iopscience.iop.org/article/10.3847/2041-8213/ae7444 -> Gaia Data Show That the #InitialMassFunction Is Not Universal: https://aasnova.org/2026/07/08/gaia-data-show-that-the-initial-mass-function-is-not-universal/

Direct Evidence for Stellar Initial Mass Function Variation in the Milky Way: https://iopscience.iop.org/article/10.3847/2041-8213/ae7444 -> Gaia Data Show That the #InitialMassFunction Is Not Universal: https://aasnova.org/2026/07/08/gaia-data-show-that-the-initial-mass-function-is-not-universal/

I am back in circulation after my little break and, since it’s Saturday, I will resume blogging with another report on activity at the  Open Journal of Astrophysics.  Since the last update we have published two more papers, taking  the count in Volume 7 (2024) up to 71 and the total published by OJAp up to 186.  We’ve still got a few in the pipeline waiting for the final versions to appear on arXiv so I expect we’ll reach the 200 mark fairly soon.

The first paper of the most recent pair, published on August 26th 2024,  is “Impact of lensing of gravitational waves on the observed distribution of neutron star masses”  by Sofia Canevarolo, Loek van Vonderen and Nora Elisa Chisari, all of Utrecht University in the Netherlands. This article presents a discussion of the bias in neutron star mass determinations caused by gravitational lensing of the gravitational waves they produceThe paper is in the folder marked Cosmology and NonGalactic Astrophysics.

Here is a screen grab of the overlay which includes the abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

The second paper has the title “FORGE’d in FIRE III: The IMF in Quasar Accretion Disks from STARFORGE” and was published (in the early hours of the morning) on 29th August 2024. The authors, all based in the USA, are Philip F. Hopkins (Caltech), Michael Y. Grudic (Carnegie Observatories), Kyle Kremer (Caltech), Stella S. R. Offner (UT Austin), David Guszejnov (UT Austin) and Anna L. Rosen (UCSD). This paper, which is in the folder marked Astrophysics of Galaxies, presents a numerical study of star formation and the initial mass function in quasar accretion disks. The previous two papers in this series have also been published in the OJAp: you can find them here and here; images and movies related to this project can be found here.

Here is a screen grab of the overlay which includes the abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

That concludes this week’s update. We still have quite a few papers in the pipeline after the summer lull so I expect I’ll have a larger update for you next week!

https://telescoper.blog/2024/08/31/two-new-publications-at-the-open-journal-of-astrophysics-14/

#accretionDisks #arXiv240408046v2 #arXiv240411480v2 #AstrophysicsOfGalaxies #CosmologyAndNonGalacticAstrophysics #GravitationalLensing #gravitationalWaves #InitialMassFunction #NeutronStars #OpenJournalOfAstrophysics #quasars #STARFORGE #TheOpenJournalOfAstrophysics

I am back in circulation after my little break and, since it’s Saturday, I will resume blogging with another report on activity at the  Open Journal of Astrophysics.  Since the last update we have published two more papers, taking  the count in Volume 7 (2024) up to 71 and the total published by OJAp up to 186.  We’ve still got a few in the pipeline waiting for the final versions to appear on arXiv so I expect we’ll reach the 200 mark fairly soon.

The first paper of the most recent pair, published on August 26th 2024,  is “Impact of lensing of gravitational waves on the observed distribution of neutron star masses”  by Sofia Canevarolo, Loek van Vonderen and Nora Elisa Chisari, all of Utrecht University in the Netherlands. This article presents a discussion of the bias in neutron star mass determinations caused by gravitational lensing of the gravitational waves they produceThe paper is in the folder marked Cosmology and NonGalactic Astrophysics.

Here is a screen grab of the overlay which includes the abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

The second paper has the title “FORGE’d in FIRE III: The IMF in Quasar Accretion Disks from STARFORGE” and was published (in the early hours of the morning) on 29th August 2024. The authors, all based in the USA, are Philip F. Hopkins (Caltech), Michael Y. Grudic (Carnegie Observatories), Kyle Kremer (Caltech), Stella S. R. Offner (UT Austin), David Guszejnov (UT Austin) and Anna L. Rosen (UCSD). This paper, which is in the folder marked Astrophysics of Galaxies, presents a numerical study of star formation and the initial mass function in quasar accretion disks. The previous two papers in this series have also been published in the OJAp: you can find them here and here; images and movies related to this project can be found here.

Here is a screen grab of the overlay which includes the abstract:

You can click on the image of the overlay to make it larger should you wish to do so. You can find the officially accepted version of the paper on the arXiv here.

That concludes this week’s update. We still have quite a few papers in the pipeline after the summer lull so I expect I’ll have a larger update for you next week!

https://telescoper.blog/2024/08/31/two-new-publications-at-the-open-journal-of-astrophysics-14/

#accretionDisks #arXiv240408046v2 #arXiv240411480v2 #AstrophysicsOfGalaxies #CosmologyAndNonGalacticAstrophysics #GravitationalLensing #gravitationalWaves #InitialMassFunction #NeutronStars #OpenJournalOfAstrophysics #quasars #STARFORGE #TheOpenJournalOfAstrophysics

Variation of the High-mass Slope of the Stellar #InitialMassFunction - Theory Meets Observations: https://iopscience.iop.org/article/10.3847/1538-4357/ad09bc -> https://nitter.net/mpi_astro/status/1734202176182870452

Variation of the High-mass Slope of the Stellar #InitialMassFunction - Theory Meets Observations: https://iopscience.iop.org/article/10.3847/1538-4357/ad09bc -> https://nitter.net/mpi_astro/status/1734202176182870452

Variation of the High-mass Slope of the Stellar #InitialMassFunction - Theory Meets Observations: https://iopscience.iop.org/article/10.3847/1538-4357/ad09bc -> https://nitter.net/mpi_astro/status/1734202176182870452

Variation of the High-mass Slope of the Stellar #InitialMassFunction - Theory Meets Observations: https://iopscience.iop.org/article/10.3847/1538-4357/ad09bc -> https://nitter.net/mpi_astro/status/1734202176182870452

Variation of the High-mass Slope of the Stellar #InitialMassFunction - Theory Meets Observations: https://iopscience.iop.org/article/10.3847/1538-4357/ad09bc -> https://nitter.net/mpi_astro/status/1734202176182870452