Results 21 to 30 of about 4,577,009 (388)

The Origin of the Initial Mass Function [PDF]

open access: yes, 2006
We review recent advances in our understanding of the origin of the initial mass function (IMF). We emphasize the use of numerical simulations to investigate how each physical process involved in star formation affects the resulting IMF.
Bonnell, Ian A.   +2 more
core   +2 more sources

The relationship between the prestellar core mass function and the stellar initial mass function [PDF]

open access: yesAstronomy & Astrophysics, 2007
Stars form from dense molecular cores, and the mass function of these cores (the CMF) is often found to be similar to the form of the stellar initial mass function (IMF).
A. P. Whitworth   +55 more
core   +8 more sources

Toward an initial mass function for giant planets [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
The distribution of exoplanet masses is not primordial. After the initial stage of planet formation is complete, the gravitational interactions between planets can lead to the physical collision of two planets, or the ejection of one or more planets from
Carrera, Daniel   +2 more
core   +3 more sources

The Stellar Initial Mass Function at the Epoch of Reionization [PDF]

open access: yesThe Astrophysical Journal, 2008
I provide estimates of the ultraviolet and visible light luminosity density at z~6 after accounting for the contribution from faint galaxies below the detection limit of deep Hubble and Spitzer surveys.
Dave R.   +3 more
core   +7 more sources

A nonextensive insight to the stellar initial mass function [PDF]

open access: yesEPL (Europhysics Letters), 2019
the present paper, we propose that the stellar initial mass distributions as known as IMF are best fitted by $q$-Weibulls that emerge within nonextensive statistical mechanics. As a result, we show that the Salpeter's slope of $\sim$2.35 is replaced when
da Silva, J. R. P.   +3 more
core   +4 more sources

The Stellar Initial Mass Function in the Galactic Center [PDF]

open access: yes, 2004
Massive stars define the upper limits of the star formation process, dominate the energetics of their local environs, and significantly affect the chemical evolution of galaxies.
A. Damineli   +25 more
core   +5 more sources

Converging on the Initial Mass Function of Stars

open access: yesJournal of Physics: Conference Series, 2017
Understanding the origin of stellar masses—the initial mass function (IMF)— remains one of the most challenging problems in astrophysics. The IMF is a key ingredient for simulations of galaxy formation and evolution, and is used to calibrate star ...
C. Federrath, M. Krumholz, P. Hopkins
semanticscholar   +5 more sources

Evidence for universality in the initial planetesimal mass function [PDF]

open access: yesThe Astrophysical Journal Letters, 2017
Planetesimals may form from the gravitational collapse of dense particle clumps initiated by the streaming instability. We use simulations of aerodynamically coupled gas-particle mixtures to investigate whether the properties of planetesimals formed in ...
Armitage, Philip J.   +3 more
core   +3 more sources

The Stellar Initial Mass Function

open access: green, 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
openalex   +4 more sources

Nebular dominated galaxies: insights into the stellar initial mass function at high redshift [PDF]

open access: yesMonthly 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
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy