Results 21 to 30 of about 1,168,780 (297)
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
Treu, Tommaso +5 more
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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"
Richer, Harvey B., Fahlman, Gregory G.
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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 ...
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Fragmentation and the initial mass function [PDF]
International Astronomical Union Colloquium, 1989 A central problem in the theory of star formation is to understand the spectrum of masses, or Initial Mass Function, with which stars are formed. The fundamental role of the IMF in galactic evolution has been described by Tinsley (1980), and an extensive review of evidence concerning the IMF and its possible variability has been presented by Scalo ...
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The Initial Mass Function of Be Stars [PDF]
Symposium - International Astronomical Union, 2004 Allowing for systematic differences in the counting of Be Stars due to their overluminosity, changes produced by their fast rotation on spectral types and time spent in the main sequence, a difference between the IMF (Be) and IMF(B) appears, which indicates that the appearance of the Be phenomenon may relay on differences in the initial star formation ...
J. Zorec +7 more
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Feedback and the Initial Mass Function [PDF]
, 2007 To appear in IMF@50: The Stellar Initial Mass Function Fifty Years Later, eds E. Corbelli, F. Palla, and H. Zinnecker, held at Abbazia di Spineto, Siena, Italy, May 2004, to be published by Kluwer Acad emic Publishers, Astrophysics and Space Science Library; and in The Young Local Universe, eds. A. Chalabaev, Y. Fukui and T.
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The initial mass function in clusters [PDF]
, 2009 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.
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The Mass to Light Ratio and the Initial Mass Function in Galactic Discs [PDF]
Astrophysics and Space Science, 2003 A low mass-to-light ratio for the baryonic component of spiral galaxies is advocated by a number of dynamical studies and by cosmological simulations of galaxy formation. We discuss the possibility of obtaining low mass-to-light ratios for the stellar component in discs, by changing the Initial Mass Function and the Star Formation History.
Portinari, L. +2 more
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Implications of a Temperature-dependent Initial Mass Function. III. Mass Growth and Quiescence
, 2022 The stellar initial mass function (IMF) is predicted to depend upon the temperature of gas in star-forming molecular clouds. The introduction of an additional parameter, T (IMF), into photometric template fitting suggests most galaxies obey an IMF top ...
Thomas H. Clark +26 more
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The stellar initial mass function [PDF]
Proceedings of the International Astronomical Union, 2006 Abstract The IMF UNIVERSALITY HYPOTHESIS cannot be discarded despite the existence of the CLUSTER IMF THEOREM. This means that the currently existing star-formation theory fails to describe the stellar outcome. The IGIMF THEOREM, however, predicts a variation of galaxy-wide IMFs in dependence of the galaxy's star-formation rate even if the IMF ...
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