Results 1 to 10 of about 3,736,902 (345)
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
core +8 more sources
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
core +7 more sources
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
openaire +7 more sources
Extragalactic constraints on the initial mass function [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 6 pages, 5 figures, accepted to ...
Rita Tojeiro +3 more
openaire +9 more sources
Clump lifetimes and the initial mass function [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 7 pages, 3 figures, accepted to ...
Ralf S. Klessen +2 more
openaire +6 more sources
The initial mass function: Now and then
AIP Conference Proceedings, 1997 10 pages, postscript. To appear in "Proceedings 7th Annual Astrophysics Conference in Maryland-STAR FORMATION NEAR AND FAR"
Gregory G. Fahlman, Harvey B. Richer
openaire +5 more sources
New Light on the Initial Mass Function of the Galactic Halo Globular Clusters [PDF]
Mon.Not.Roy.Astron.Soc.363:326-336,2005, 2005 We present new constraints on the initial mass spectrum of the Galactic Old Halo globular clusters. This has remained poorly-known so far, as both an initial power-law mass spectrum and an initial lognormal mass function could have evolved into the presently observed globular cluster mass distribution, making the initial contribution of now lost low ...
G. Parmentier, G. Gilmore
arxiv +3 more sources
THE INITIAL MASS FUNCTION OF EARLY-TYPE GALAXIES [PDF]
The Astrophysical Journal, 2010 We determine an absolute calibration of the initial mass function (IMF) of early-type galaxies, by studying a sample of 56 gravitational lenses identified by the SLACS Survey. Under the assumption of standard Navarro, Frenk & White dark matter halos, a combination of lensing, dynamical, and stellar population synthesis models is used to disentangle
Matthew W. Auger +7 more
openaire +9 more sources
Initial mass function of intermediate-mass black hole seeds [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 MNRAS, in press.
Ferrara, A. +3 more
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The Initial Mass Function as given by the fragmentation [PDF]
Astronomische Nachrichten, 2005 The dichotomy between a universal mass function (IMF) and a variable IMF which depends on local physical parameters characterises observational and theoretical stellar astronomy. In this contribution the available distributions of probability are briefly reviewed.
Barrado y Navascués +36 more
openaire +6 more sources