#metallicity — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #metallicity, aggregated by home.social.
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New in the #VirtualObservatory: “Abund. & age of clusters from different SPS models” by Asa'd R. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/170/85
#Metallicity #AstronomicalModels #VisibleAstronomy #Spectroscopy -
New in the #VirtualObservatory: “Contact binaries period-luminosity-metallicity” by Song L.-Y. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/961/248
#VisibleAstronomy #InfraredPhotometry #UltravioletPhotometry #Metallicity -
New in the #VirtualObservatory: “Planet masses, radii, and orbits from K2 mission” by Howard A.W. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/278/52
#Exoplanets #StellarRadii #StellarMasses #Metallicity -
New in the #VirtualObservatory: “DESI observations of the Andromeda galaxy” by Dey A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/944/1
#Metallicity #BroadBandPhotometry #InfraredPhotometry #Galaxies -
New in the #VirtualObservatory: “Milky Way halo Gaia DR3 RR Lyrae stars” by Muraveva T. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/708/A384
#Metallicity #ProperMotions #VariableStars #MilkyWayGalaxy -
New in the #VirtualObservatory: “The fate of MS-BD binaries” by Chen Z. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/707/A312
#Orbits #AstronomicalReferenceMaterials #BrownDwarfs #Metallicity -
Interstellar Comet 3I/ATLAS May Have Formed Around An Old, Low-Metallicity Star In The Milky Way's Outer Disk - IFLScience
https://atlas.whatip.xyz/post.php?slug=interstellar-comet-3iatlas-may-have-formed-around-an-old-low-metallicity-star-in-the-milky-ways-outer-disk-iflscience
Key insight: Interstellar Comet 3I/ATLAS May Have Formed Around An Old
#interstellar #metallicity #formed #around -
New in the #VirtualObservatory: “Metallicity measurements of ~500 stars across 13 UFDs” by Fu S.W. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/958/167
#DwarfGalaxies #Metallicity #HstPhotometry #VisibleAstronomy -
New in the #VirtualObservatory: “Gaia DR3 high radial velocity stars” by Katz D. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/704/A294
#HighVelocityStars #Metallicity #RadialVelocity #EffectiveTemperature -
New in the #VirtualObservatory: “UV photometry of host stars with confirmed planets” by Li X. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/276/29
#Metallicity #Exoplanets #StellarDistance #UltravioletPhotometry -
New in the #VirtualObservatory: “TIC star magnetic activity with LAMOST DR10 MRS sp.” by Su T. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/276/44
#Metallicity #StellarRadii #StellarMasses #StellarFlares -
New in the #VirtualObservatory: “Blue horizontal-branch stars from LAMOST” by Ju J. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/276/12
#Metallicity #HorizontalBranchStars #VisibleAstronomy #Spectroscopy -
New in the #VirtualObservatory: “Open cluster parameters derived using Gaia XP” by Nizovkina M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/703/A100
#OpenStarClusters #Metallicity #Extinction #StellarDistance -
New in the #VirtualObservatory: “Estimating [Fe/H] of RR Lyrae using Gaia DR3” by Monti L. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/702/A148
#VisibleAstronomy #VariableStars #Metallicity -
New in the #VirtualObservatory: “M104 Globular cluster catalogue” by Fahrion K. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/702/A59
#RadialVelocity #GlobularStarClusters #Metallicity #Photometry -
New in the #VirtualObservatory: “Sagittarius stream with RRLs from Gaia DR3” by Muraveva T. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/701/A228
#Metallicity #StellarDistance #VisibleAstronomy #VariableStars -
New in the #VirtualObservatory: “Pulsation study of 176 HADS stars with OGLE” by Netzel H. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/515/4574
#GalacticCenter #StellarAges #EffectiveTemperature #Metallicity -
New in the #VirtualObservatory: “Stars cluster and RGBs study in NGC362” by Vargas C. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/515/1903
#EffectiveTemperature #VisibleAstronomy #Astrometry #Metallicity -
New in the #VirtualObservatory: “Milky Way red clump bulge stars with BDBS” by Johnson C.I. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/515/1469
#MilkyWayGalaxy #Metallicity #StellarDistance #Extinction -
New in the #VirtualObservatory: “RR Lyrae stars trace the Milky Way warp” by Cabrera-Gadea M. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/701/A136
#VariableStars #MilkyWayGalaxy #StellarDistance #Metallicity -
New in the #VirtualObservatory: “List of planets from HARPS/Coralie surveys” by Emsenhuber A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/701/A64
#MultipleStars #Exoplanets #VisibleAstronomy #Metallicity -
New in the #VirtualObservatory: “Metallicity maps of the Magellanic Clouds” by Omkumar O.A. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/700/A74
#MagellanicClouds #StellarDistance #Metallicity #MediumBandPhotometry -
New in the #VirtualObservatory: “GD-1 and Kshir tidal streams metallicity and motion” by Shi W.B. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/700/A13
#MilkyWayGalaxy #GiantStars #RadialVelocity #Metallicity -
Early galaxies aren't playing cricket.
https://www.youtube.com/watch?v=xPK9kF2tqfk
#astronomy #galaxy #cosmology #JWST #metallicity #physics -
New in the #VirtualObservatory: “Catalog of stellar atmospheric parameters” by Li S. et al.
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/698/A322
#CcdPhotometry #EffectiveTemperature #Metallicity -
Pebble accretion is the leading theory for the formation of #exoplanets more massive than the Earth.
But any parameters influence #planet growth in the pebble accretion models, including pebble fragmentation velocity, turbulence strength, stellar #metallicity, stellar mass, and planet location.
Planets orbiting #stars with higher metallicity have an overall higher probability of reaching their pebble isolation mass than those orbiting lower metallicity stars, but the impact of metallicity is not as high as that of stellar mass, orbital separation, and most importantly disc turbulence.
#astronomy
https://astrobiology.com/2025/05/can-close-in-exoplanets-form-by-pebble-accretion.html -
Pebble accretion is the leading theory for the formation of #exoplanets more massive than the Earth.
But any parameters influence #planet growth in the pebble accretion models, including pebble fragmentation velocity, turbulence strength, stellar #metallicity, stellar mass, and planet location.
Planets orbiting #stars with higher metallicity have an overall higher probability of reaching their pebble isolation mass than those orbiting lower metallicity stars, but the impact of metallicity is not as high as that of stellar mass, orbital separation, and most importantly disc turbulence.
#astronomy
https://astrobiology.com/2025/05/can-close-in-exoplanets-form-by-pebble-accretion.html -
Using the sun as a baseline, astronomers can measure when a #star formed by determining its #metallicity, or the level of heavy elements present within it.
Metal-rich #stars or nebulas formed relatively recently, while metal-poor objects were likely present during the early #universe.
The formation of super-Earths, #planets more massive than the Earth, near metal-poor stars is significantly more difficult than near high-metalliciry ones.
#exoplanets #astronomy
https://astrobiology.com/2024/09/formation-of-super-earths-proven-to-be-limited-near-metal-poor-stars.html -
Using the sun as a baseline, astronomers can measure when a #star formed by determining its #metallicity, or the level of heavy elements present within it.
Metal-rich #stars or nebulas formed relatively recently, while metal-poor objects were likely present during the early #universe.
The formation of super-Earths, #planets more massive than the Earth, near metal-poor stars is significantly more difficult than near high-metalliciry ones.
#exoplanets #astronomy
https://astrobiology.com/2024/09/formation-of-super-earths-proven-to-be-limited-near-metal-poor-stars.html -
Critical #Metallicity of Cool #Supergiant Formation - Effects on #Stellar Mass Loss and Feedback: https://arxiv.org/abs/2210.10042 -> The Secret Ingredient to the Weight Loss Recipe for Massive Stars: https://press.asiaa.sinica.edu.tw/ASIAA_TAIWAN_News/230118
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Critical #Metallicity of Cool #Supergiant Formation - Effects on #Stellar Mass Loss and Feedback: https://arxiv.org/abs/2210.10042 -> The Secret Ingredient to the Weight Loss Recipe for Massive Stars: https://press.asiaa.sinica.edu.tw/ASIAA_TAIWAN_News/230118