Results 21 to 30 of about 1,934,975 (307)
The Initial Mass Function and Other Stellar Properties Across the Core of the Hydra I Cluster
The Astrophysical Journal, 2023 The Hydra I cluster offers an excellent opportunity to study and compare the relic old stellar populations in the core of its two brightest galaxies. In addition, the differing kinematics of the two galaxies allows a test of the local validity of general
Ilaria Lonoce +2 more
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On the variation of the initial mass function [PDF]
, 2000 A universal initial mass function (IMF) is not intuitive, but so far no convincing evidence for a variable IMF exists. The detection of systematic variations of the IMF with star-forming conditions would be the Rosetta Stone for star formation. In
P. Kroupa
semanticscholar +1 more source
The cosmic merger rate density of compact objects: impact of star formation, metallicity, initial mass function, and binary evolution [PDF]
, 2020 We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity evolution, common ...
F. Santoliquido +4 more
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Variation of the High-mass Slope of the Stellar Initial Mass Function: Theory Meets Observations
The Astrophysical Journal, 2023 We present observational evidence of a correlation between the high-mass slope of the stellar initial mass function (IMF) in young star clusters and their stellar surface density, σ _* .
Sami Dib
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The importance of magnetic fields for the initial mass function of the first stars [PDF]
, 2020 Magnetic fields play an important role for the formation of stars in both local and high-redshift galaxies. Recent studies of dynamo amplification in the first dark matter haloes suggest that significant magnetic fields were likely present during the ...
P. Sharda, C. Federrath, M. Krumholz
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The Astrophysical Journal, 2023 Low-mass stars and substellar objects are essential in tracing the initial mass function (IMF). We study the nearby young σ Orionis cluster ( d ∼ 408 pc, age ∼ 1.8 Myr) using deep near-infrared (NIR) photometric data in the J , W , and H bands from ...
Belinda Damian +13 more
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The role of molecular filaments in the origin of the prestellar core mass function and stellar initial mass function [PDF]
Astronomy & Astrophysics, 2019 Context. The origin of the stellar initial mass function (IMF) is one of the most debated issues in astrophysics. Aims. Here we explore the possible link between the quasi-universal filamentary structure of star-forming molecular clouds and the origin of
P. Andr'e +4 more
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The Astrophysical Journal Supplement Series, 2023 This work presents and releases a catalog of new photometrically derived physical properties for the ∼10 ^5 most well-measured galaxies in the COSMOS field on the sky.
Vadim Rusakov +2 more
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The Physical Origin of the Stellar Initial Mass Function [PDF]
Annual Review of Astronomy and AstrophysicsStars are among the most fundamental structures of our Universe. They comprise most of the baryonic and luminous mass of galaxies; synthesize heavy elements; and inject mass, momentum, and energy into the interstellar medium.
P. Hennebelle, Mike Grud'ic
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Impact of metallicity and star formation rate on the time-dependent, galaxy-wide stellar initial mass function [PDF]
Astronomy & Astrophysics, 2018 The stellar initial mass function (IMF) is commonly assumed to be an invariant probability density distribution function of initial stellar masses. These initial stellar masses are generally represented by the canonical IMF, which is defined as the ...
T. Jeřábková +6 more
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