Results 91 to 100 of about 3,974,322 (270)

Does turbulence determine the initial mass function? [PDF]

Monthly Notices of the Royal Astronomical Society, 2016
6 pages, 7 figures, accepted to ...
James Wurster, James Wurster, Matthew R. Bate, David Liptai, Daniel J. Price   +4 more
openaire   +5 more sources

Why is the Star Formation Rate Proportional to Dense Gas Mass?

The Astrophysical Journal
One of the most profound empirical laws of star formation is the Gao–Solomon relation, a linear correlation between the star formation rate (SFR) and the dense molecular gas mass.
Sihan Jiao, Fengwei Xu, Hauyu Baobab Liu, Yuxin Lin, Jingwen Wu, Zhi-Yu Zhang, Zhiqiang Yan, Di Li, Chao-Wei Tsai, Yongkun Zhang, Linjing Feng, Ke Wang, Zheng Zheng, Fanyi Meng, Hao Ruan, Fangyuan Deng, Keyun Su   +16 more
doaj   +1 more source

Comparison of physical characteristics of mass and luminosity function of disk systems in barred and unbarred spiral galaxies

مجلة بغداد للعلوم
Among the most important ways to investigate galaxies' distribution over cosmic time is the luminosity function LF in terms of baryonic disc mass ψS(Mb), magnitude  .
Al Najm M.N., Y. E. Rashed , H. H. AL-Dahlaki   +2 more
doaj   +1 more source

Building up the Population III initial mass function from cosmological initial conditions [PDF]

, 2016
We simulate the growth of a Population III stellar system, starting from cosmological initial conditions at z=100. We follow the formation of a minihalo and the subsequent collapse of its central gas to high densities, resolving scales as small as ~ 1 AU.
A. Stacy, V. Bromm, Aaron T. Lee
semanticscholar   +1 more source

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

Astronomy & Astrophysics, 2007
7 pages, 3 figures, A&A in ...
D. Nutter, Derek Ward-Thompson, Simon P. Goodwin, Pavel Kroupa, Anthony Peter Whitworth   +4 more
openaire   +6 more sources

Quantifying the Universality of the Stellar Initial Mass Function in Old Star Clusters [PDF]

, 2012
We present a new technique to quantify cluster-to-cluster variations in the observed present-day stellar mass functions of a large sample of star clusters.
Alison Sills, Anderson, Ata Sarajedini, Baumgardt, Baumgardt, Bonnell, Casetti-Dinescu, Chatterjee, Chernoff, Christian Knigge, Cool, Da Costa, Davis, De Angeli, De Marchi, De Marchi, Dinescu, Dotter, Dotter, Elmegreen, Elmegreen, Evert Glebbeek, Fregeau, Fregeau, Fregeau, Gieles, Goldsbury, Grenier, Guido de Marchi, Harris, Heggie, Heggie, Heggie, Henon, Henon, Hurley, Hut, Hut, Joshi, Joshi, Knigge, Kroupa, Kruijssen, Lada, Lada, Lada, Lada, Leigh, Lejeune, Lejeune, Marin-Franch, Marks, Marks, McKee, Milone, Milone, Murray, Nathan Leigh, Parravano, Paust, Pols, Portegies Zwart, Portegies Zwart, Rubenstein, Sarajedini, Scalo, Sollima, Spitzer, Stefan Umbreit, Tutukov, Vesperini, von Hippel, Zonoozi   +72 more
core   +3 more sources

The Earliest Stage of Galactic Star Formation

The 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, Vadim Rusakov, Thomas H. Clark, Andrei Diaconu, John Forbes, Conor McPartland, Albert Sneppen, John Weaver   +7 more
doaj   +1 more source

BANYAN. IX. The Initial Mass Function and Planetary-mass Object Space Density of the TW HYA Association [PDF]

, 2016
A determination of the initial mass function (IMF) of the current, incomplete census of the 10 Myr-old TW Hya association (TWA) is presented. This census is built from a literature compilation supplemented with new spectra and 17 new radial velocities ...
J. Gagn'e, J. Faherty, E. Mamajek, L. Malo, R. Doyon, J. Filippazzo, A. Weinberger, J. Donaldson, S. L'epine, D. Lafrèniere, É. Artigau, A. Burgasser, D. Looper, A. Boucher, Y. Beletsky, Sara Camnasio, Charles Brunette, Geneviève Arboit   +17 more
semanticscholar   +1 more source

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
Portinari, L., Sommer-Larsen, Jesper, Tantalu, R   +2 more
openaire   +3 more sources

A Modified Initial Mass Function of the First Stars with Explodability Theory under Different Enrichment Scenarios

The Astrophysical Journal
The most metal-poor stars record the earliest metal enrichment triggered by Population III stars. By comparing observed abundance patterns with theoretical yields of metal-free stars, physical properties of their first star progenitors can be inferred ...
Ruizheng Jiang, Gang Zhao, Haining Li, Qianfan Xing   +3 more
doaj   +1 more source