Results 271 to 280 of about 1,168,780 (297)

Evidence for a bottom-light initial mass function in massive star clusters

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.
Holger Baumgardt, V Hénault-Brunet, N Dickson   +2 more
exaly   +3 more sources

The initialfinal mass relationship of white dwarfs revisited: effect on the luminosity function and mass distribution [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
The initial-final mass relationship connects the mass of a white dwarf with the mass of its progenitor in the main sequence. Although this function is of fundamental importance to several fields in modern astrophysics, it is not well constrained either ...
J Isern, I Ribas, E Garcia-Berro
exaly   +2 more sources

On the mass-to-light ratio and the initial mass function in disc galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
A low mass-to-light ratio for the stellar component of spiral galaxies (M/L<1 in the I-band) is advocated by various dynamical arguments and by recent cosmological simulations of the formation of these systems. We discuss this possibility by means of chemo-photometric models for galactic discs, adopting different Initial Mass Functions. We show that
L Portinari, J Sommer-Larsen
exaly   +3 more sources

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The Initial Mass Function

1988
As we have already heard, estimates of the fraction of a star-forming cloud that is converted into stars and of the overall star formation rate in galaxies depend crucially on the assumed stellar initial mass function, which must be known before any quantitative conclusions can be drawn about galactic evolution.
openaire   +1 more source

THE ORIGIN OF THE INITIAL MASS FUNCTION IS IN THE CLOUD STRUCTURE

2007
Detailed knowledge of the initial distribution of stellar masses at birth (known as the initial mass function or IMF) is necessary to predict and understand the evolution of stellar systems, such as clusters and galaxies. Unfortunately, stellar evolution theory cannot predict the form of this critical function and the origin of the stellar IMF remains ...
J. Alves, M. Lombardi, C. Lada
openaire   +2 more sources

The Initial Mass Function and the Occurrence of Stars of Small Mass

Publications of the Astronomical Society of the Pacific, 1961
A knowledge of the distribution of stellar luminosities along the zero-age main sequence can be obtained by applying evolutionary theory to the observed luminosity function. Thus by allowing for the facts that the intrinsically brighter stars have evolved away from the main sequence and that the most massive stars have probably turned into white dwarfs,
openaire   +1 more source

Evidence for Initial Mass Function Variation in Massive Early-Type Galaxies

Annual Review of Astronomy and Astrophysics, 2020
Russell J Smith
exaly  

Testing the turbulent origin of the stellar initial mass function

Monthly Notices of the Royal Astronomical Society, 2021
Donghee G Nam, Christoph Federrath, Mark R Krumholz   +2 more
exaly  

The impact of carbon and oxygen abundances on the metal-poor initial mass function

Monthly Notices of the Royal Astronomical Society, 2022
Piyush Sharda, A M Amarsi, Kathryn Grasha   +2 more
exaly  

On the problem of secular variability in the stellar initial mass function

Astronomische Nachrichten, 1987
H Meusinger
exaly