Results 21 to 30 of about 100,003 (312)

Uncertainties in the calibrations of star formation rate [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2013
17 pages, 7 figures, 9 tables, accepted by ...
Yulong Zhuang   +4 more
openaire   +3 more sources

DETERMINING STAR FORMATION RATES FOR INFRARED GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2009
Accepted by ApJ. Revised in proof to strengthen caveats about the extrapolation of these IR templates above L(TIR)>2e12, without suitable local purely starforming template galaxies above this luminosity. Source includes two machine-readable tables of template spectra SEDs, or download the tables from http://mingus.as.arizona.edu/~bjw/ir_templates/
Myra Blaylock   +7 more
openaire   +7 more sources

What Sets the Star Formation Rate of Molecular Clouds? The Density Distribution as a Fingerprint of Compression and Expansion Rates

open access: yesThe Astrophysical Journal, 2023
We use a suite of 3D simulations of star-forming molecular clouds, with and without stellar feedback, magnetic fields, and driven turbulence, to study the compression and expansion rates of the gas as functions of density.
Sabrina M. Appel   +5 more
doaj   +1 more source

The Reliability of [C II] as a Star Formation Rate Indicator

open access: yesOpen Astronomy, 2011
We present a calibration of the star formation rate (SFR) as a function of the [C II] 157.74 μm luminosity for a sample of 24 star-forming galaxies in the nearby universe.
De Looze Ilse   +4 more
doaj   +1 more source

The Earliest Stage of Galactic Star Formation

open access: yesThe Astrophysical Journal Letters, 2023
Using a recently developed technique to estimate gas temperatures ( T _SF ) in star-forming regions from large photometric surveys, we propose a diagram, analogous to the Hertzsprung–Russell diagram for individual stars, to probe the evolution of ...
Charles L. Steinhardt   +7 more
doaj   +1 more source

Variations in the Galactic star formation rate and density thresholds for star formation [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
The conversion of gas into stars is a fundamental process in astrophysics and cosmology. Stars are known to form from the gravitational collapse of dense clumps in interstellar molecular clouds, and it has been proposed that the resulting star formation rate is proportional to either the amount of mass above a threshold gas surface density, or the gas ...
Eli Bressert   +18 more
openaire   +5 more sources

[Oii] as a Star Formation Rate Indicator [PDF]

open access: greenThe Astronomical Journal, 2004
34 pages, 19 figures.
Lisa J. Kewley   +2 more
openalex   +5 more sources

The Rate of Star Formation.

open access: yesThe Astrophysical Journal, 1959
It is assumed that the rate of star formation for population I varies with a power n of the density of interstellar gas and that the initial luminosity function is time-independent. Direct evidence on the value of n is found in the relative distribution, perpendicular to the galactic plane, of gas and young objects.
openaire   +4 more sources

Are star formation rates of galaxies bimodal? [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2017
Abstract Star formation rate (SFR) distributions of galaxies are often assumed to be bimodal with modes corresponding to star-forming and quiescent galaxies, respectively. Both classes of galaxies are typically studied separately, and SFR distributions of star-forming galaxies are commonly modelled as lognormals. Using both observational
openaire   +3 more sources

Implications for the formation of star clusters from extragalactic star formation rates [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2004
8 pages, 9 figures, to be published in ...
Pavel Kroupa   +4 more
openaire   +3 more sources

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