Results 61 to 70 of about 3,974,322 (270)

Feedback and the Initial Mass Function [PDF]

open access: yes, 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.
openaire   +4 more sources

The Stellar Initial Mass Function in Early-type Galaxies from Absorption Line Spectroscopy. III. Radial Gradients [PDF]

open access: yes, 2016
There is good evidence that the centers of massive early-type galaxies have a bottom-heavy stellar initial mass function (IMF) compared to that of the Milky Way.
P. V. van Dokkum   +4 more
semanticscholar   +1 more source

Is the stellar initial mass function universal? [PDF]

open access: yesAstronomy & Geophysics, 2016
Ignacio Ferreras, Francesco La Barbera and Alexandre Vazdekis take a close look at one of the key ingredients in modelling star formation.
Ferreras, I, La Barbera, F, Vazdekis, A
openaire   +3 more sources

Isothermal Fragmentation: Is there a low-mass cut-off? [PDF]

open access: yes, 2018
The evolution of self-gravitating clouds of isothermal gas forms the basis of many star formation theories. Therefore it is important to know under what conditions such a cloud will undergo homologous collapse into a single, massive object, or will ...
Federrath, Christoph   +4 more
core   +4 more sources

On the function describing the stellar initial mass function [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
We propose a functional form for the IMF, the L_3 IMF, which is a natural heavy-tailed approximation to the log-normal distribution. It is composed of a low-mass power law and a high mass power-law which are smoothly joined together. Three parameters are needed to achieve this.
openaire   +2 more sources

Fragmentation of young massive clusters in binary components: an application of Griddy Gibbs Sampler

open access: yesFrontiers in Astronomy and Space Sciences
The study of the process of hierarchical fragmentation of molecular clouds within Young Massive Clusters required modeling the Initial Mass Function by considering both binary and single-star components.
Abisa Sinha Adhikary, Ankita Das
doaj   +1 more source

A Census of the 32 Ori Association with Gaia

open access: yesThe Astronomical Journal, 2022
I have used high-precision photometry and astrometry from the third data release of Gaia (DR3) to identify candidate members of the 32 Ori association.
K. L. Luhman
doaj   +1 more source

Constraining the low-mass end of the Initial Mass Function with Gravitational Lensing [PDF]

open access: yes, 2010
The low-mass end of the stellar Initial Mass Function (IMF) is constrained by focusing on the baryon-dominated central regions of strong lensing galaxies. We study in this letter the Einstein Cross (Q2237+0305), a z=0.04 barred galaxy whose bulge acts as
Andersen   +39 more
core   +1 more source

Constraining the Initial Mass Function via Stellar Transients

open access: yesUniverse
The stellar initial mass function (IMF) represents a fundamental quantity in astrophysics and cosmology describing the mass distribution of stars from low mass all the way up to massive and very massive stars. It is intimately linked to a wide variety of
Francesco Gabrielli   +6 more
doaj   +1 more source

The cosmic microwave background and the stellar initial mass function [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
We argue that an increased temperature in star-forming clouds alters the stellar initial mass function to be more bottom-light than in the Milky Way. At redshifts $z \gtrsim 6$, heating from the cosmic microwave background radiation produces this effect ...
A. Jermyn, C. Steinhardt, C. Tout
semanticscholar   +1 more source

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