Results 1 to 10 of about 1,635,352 (355)
On the variation of the initial mass function [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 (shortened) In this contribution an average or Galactic-field IMF is defined, stressing that there is evidence for a change in the power-law index at only two masses: near 0.5 Msun and 0.08 Msun. Using this supposed universal IMF, the uncertainty inherent to any observational estimate of the IMF is investigated, by studying the scatter introduced by ...
Pavel Kroupa
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The Stellar Initial Mass Function
, 1999 The current status of both the observational evidence and the theory of the stellar initial mass function (IMF) is reviewed, with particular attention to the two basic, apparently universal features shown by all observations of nearby stellar systems: (1) a characteristic stellar mass of the order of one solar mass, and (2) a power-law decline of the ...
Richard B. Larson
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The Initial Mass Function in the Galactic Center [PDF]
, 2000 The Galactic Center contains the most massive young clusters in the Galaxy and serves as the closest example of a massive starburst region. Our recent results suggest that the Galactic Center environment produces massive clusters with relatively flat initial mass functions, as might be expected on theoretical grounds.
Donald F. Figer
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The Initial Mass Function in Clusters [PDF]
, 2006 to be published in "Massive Stars: From Pop III and GRBs to the Milky Way," eds. M. Livio and Eva Villaver, Cambridge Univ. Press, in press, from a conference held at the Space Telescope Science Institute, May 8-11, 2006.
Bruce G. Elmegreen
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A Discontinuity in the Low‐Mass Initial Mass Function [PDF]
The Astrophysical Journal, 2007 The origin of brown dwarfs (BDs) is still an unsolved mystery. While the standard model describes the formation of BDs and stars in a similar way recent data on the multiplicity properties of stars and BDs show them to have different binary distribution functions.
Ingo Thies, Pavel Kroupa
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The Local Stellar Initial Mass Function
, 2000 This contribution describes the difficult task of inferring the IMF from local star-count data, by discussing the mass-luminosity relation, unresolved binary, triple and quadruple systems, abundance and age spreads and Galactic structure, all of which must be accounted for properly for the results to be meaningful.
Pavel Kroupa
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The Origin of The Stellar Initial Mass Function
, 2000 Observations and theories of the stellar initial mass function are reviewed. The universality and large total mass range of the power law portion of the IMF suggest a connection between stellar mass and cloud structure. The fractal patterns and formation times of young clusters suggest a further connection to turbulence.
Bruce G. Elmegreen
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The stellar initial mass function [PDF]
Proceedings of the International Astronomical Union, 2006 Pavel Kroupa
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The Astrophysical Journal Letters, 2023 We use recent microlensing observations toward the central bulge of the Galaxy to probe the overall stellar plus brown dwarf initial mass function (IMF) in these regions well within the brown dwarf domain. We find that the IMF is consistent with the same
Gilles Chabrier, Romain Lenoble
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Theories of the initial mass function [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractWe review the various theories which have been proposed along the years to explain the origin of the stellar initial mass function. We pay particular attention to four models, namely the competitive accretion and the theories based respectively on stopped accretion, MHD shocks and turbulent dispersion.
Hennebelle, Patrick, Chabrier, Gilles
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