Galactic Stellar and Substellar Initial Mass Function [PDF]
Publications of the Astronomical Society of the Pacific, 2003 Published version: PASP, 2003, 115, 763. A few changes.
G. Chabrier
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The Unusual Initial Mass Function of the Arches Cluster [PDF]
The Astrophysical Journal, 2019 Abstract As a young massive cluster in the central molecular zone, the Arches cluster is a valuable probe of the stellar initial mass function (IMF) in the extreme Galactic center environment. We use multi-epoch Hubble Space Telescope observations to obtain high-precision proper-motion and photometric measurements of the cluster ...
Mark Morris +9 more
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The Initial Mass Function Based on the Full-sky 20 pc Census of ∼3600 Stars and Brown Dwarfs
The Astrophysical Journal Supplement SeriesA complete accounting of nearby objects—from the highest-mass white dwarf progenitors down to low-mass brown dwarfs—is now possible, thanks to an almost complete set of trigonometric parallax determinations from Gaia, ground-based surveys, and Spitzer ...
J. Davy Kirkpatrick +85 more
doaj +2 more sources
The Role of Magnetic Fields in Setting the Star Formation Rate and the Initial Mass Function [PDF]
Frontiers in Astronomy and Space Sciences, 2019 Star-forming gas clouds are strongly magnetized, and their ionization fractions are high enough to place them close to the regime of ideal magnetohydrodyamics on all but the smallest size scales.
Mark R. Krumholz +3 more
doaj +2 more sources
Converging on the Initial Mass Function of Stars
Journal of Physics: Conference Series, 2017 Understanding the origin of stellar masses—the initial mass function (IMF)— remains one of the most challenging problems in astrophysics. The IMF is a key ingredient for simulations of galaxy formation and evolution, and is used to calibrate star formation relations in extra-galactic observations. Modeling the IMF directly in hydrodynamical simulations
Federrath, Christoph +2 more
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Evidence for a bottom-light initial mass function in massive star clusters [PDF]
Monthly notices of the Royal Astronomical Society, 2023 We have determined stellar mass functions of 120 Milky Way globular clusters and massive LMC/SMC star clusters based on a comparison of archival Hubble Space Telescope photometry with a large grid of direct N-body simulations.
H. Baumgardt +3 more
semanticscholar +1 more source
Nebular dominated galaxies: insights into the stellar initial mass function at high redshift [PDF]
Monthly notices of the Royal Astronomical Society, 2023 We identify a low-metallicity (12 + log (O/H) = 7.59) Lyα-emitting galaxy at z = 5.943 with evidence of a strong Balmer jump, arising from nebular continuum.
A. Cameron +5 more
semanticscholar +1 more source
Stellar initial mass function varies with metallicity and time [PDF]
Nature, 2022 A direct star-counting method of about 93,000 M-dwarf stars in the solar neighbourhood indicates a variable stellar initial mass function that depends on both metallicity and stellar age.
Jia-dong Li +6 more
semanticscholar +1 more source
Effects of the environment and feedback physics on the initial mass function of stars in the STARFORGE simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2022 One of the key mysteries of star formation is the origin of the stellar initial mass function (IMF). The IMF is observed to be nearly universal in the Milky Way and its satellites, and significant variations are only inferred in extreme environments ...
D. Guszejnov +5 more
semanticscholar +1 more source
Implications of a Temperature-dependent Initial Mass Function. I. Photometric Template Fitting [PDF]
Astrophysical Journal, 2022 A universal stellar initial mass function (IMF) should not be expected from theoretical models of star formation, but little conclusive observational evidence for a variable IMF has been uncovered.
A. Sneppen +5 more
semanticscholar +1 more source