On the variation of the initial mass function [PDF]
Monthly Notices of the Royal Astronomical Society, 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
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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
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The Dawes Review 8: Measuring the Stellar Initial Mass Function [PDF]
Publications Astronomical Society of Australia, 2018 The birth of stars and the formation of galaxies are cornerstones of modern astrophysics. While much is known about how galaxies globally and their stars individually form and evolve, one fundamental property that affects both remains elusive.
A. Hopkins
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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
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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
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Initial mass function of planetesimals formed by the streaming instability [PDF]
, 2016 The streaming instability is a mechanism to concentrate solid particles into overdense filaments that undergo gravitational collapse and form planetesimals.
Urs Schafer, Chao-Chin Yang, A. Johansen
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The bimodal initial mass function in the Orion Nebula Cloud [PDF]
, 2016 Due to its youth, proximity and richness the Orion Nebula Cloud (ONC) is an ideal testbed to obtain a comprehensive view on the Initial Mass Function (IMF) down to the planetary mass regime.
H. Drass +7 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
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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
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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
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