Results 11 to 20 of about 1,168,780 (297)

Extragalactic constraints on the initial mass function [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
The local stellar mass density is observed to be significantly lower than the value obtained from integrating the cosmic star formation history (SFH), assuming that all the stars formed with a Salpeter initial mass function (IMF).
Andrew M. Hopkins, Stephen Wilkins (4461910), Trentham, N., Tojeiro, R., Stephen M. Wilkins, Hopkins, A.~M., Neil Trentham (16161809), Rita Tojeiro (16161782), Wilkins, S.~M., Neil Trentham, Rita Tojeiro, Andrew M Hopkins (16097816)   +11 more
core   +4 more sources

Theories of the initial mass function [PDF]

Proceedings of the International Astronomical Union, 2010
We review the various theories which have been proposed along the years to explain the origin of the stellar initial mass function. We pay particular attention to four models, namely the competitive accretion and the theories based respectively on ...
Gilles Chabrier, Chabrier, Gilles, Patrick Hennebelle, Hennebelle, Patrick   +3 more
core   +4 more sources

Towards an initial mass function for giant planets [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
The distribution of exoplanet masses is not primordial. After the initial stage of planet formation, gravitational interactions between planets can lead to the physical collision of two planets, or the ejection of one or more planets from the system ...
Johansen, Anders,, Daniel Carrera, Carrera, Daniel,, Davies, Melvyn B.,, Anders Johansen, Davies, Melvyn B., Johansen, Anders, Carrera, Daniel, Melvyn B Davies   +8 more
core   +3 more sources

Initial mass function of intermediate-mass black hole seeds [PDF]

Monthly Notices of the Royal Astronomical Society, 2014
We study the initial mass function (IMF) and hosting halo properties of intermediate-mass black holes (IMBHs, 104-6 M⊙) formed inside metal-free, UV-illuminated atomic-cooling haloes (virial temperature Tvir ≥ 104 K) either via the direct collapse of the
Ferrara, A., B. Yue, FERRARA, ANDREA, S. Salvadori, Salvadori, S., D. R. G. Schleicher, Yue, B., Schleicher, D., A. Ferrara, YUE, BIN   +9 more
core   +6 more sources

NEW INSIGHTS ON THE GALACTIC BULGE INITIAL MASS FUNCTION [PDF]

The Astrophysical Journal, 2015
We have derived the Galactic bulge initial mass function (IMF) of the Sagittarius Window Eclipsing Extrasolar Planet Search field in the mass range 0.15 < M/M-circle dot 1.0, using deep photometry collected with the Advanced Camera for Surveys on the ...
Calamida, A., Kains, N., Ferguson, H., Buonanno, R., CIGNONI, MICHELE, Anderson, J., Bond, H. E., Salaris, M., Sahu, K. C., Casertano, S., Cassisi, S., Valenti, J., Ferraro, I., Gennaro, M., Clarkson, W., Brown, T. M., CASSISI, Santi, PIETRINFERNI, Adriano, Cignoni, M., Livio, M., Pietrinferni, A.   +20 more
core   +5 more sources

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

Astronomy & 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).
Goodwin, S.P., Nutter, D., D. Nutter, Goodwin, S. P., Ward-Thompson, D., Whitworth, Anthony Peter, Kroupa, P., S. P. Goodwin, P. Kroupa, Nutter, David John, Ward-Thompson, Derek, Whitworth, A. P., D. Ward-Thompson, A. P. Whitworth, Whitworth, A.P.   +14 more
core   +6 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   +2 more sources

Does turbulence determine the initial mass function? [PDF]

, 2017
We test the hypothesis that the initial mass function (IMF) is determined by the density probability distribution function (PDF) produced by supersonic turbulence.
Liptai, D., Price, Daniel J., Bate, Matthew R., Wurster, J.   +3 more
core   +3 more sources

A Discontinuity in the Low‐Mass Initial Mass Function [PDF]

The Astrophysical Journal, 2007
The origin of brown dwarfs (BDs) is still an unsolved mystery. While the standard model describes the formation of BDs and stars in a similar way recent data on the multiplicity properties of stars and BDs show them to have different binary distribution functions.
Thies, Ingo, Kroupa, Pavel
openaire   +2 more sources

Mapping the core mass function to the initial mass function [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
13 pages, 15 figures, accepted by MNRAS on 17 April ...
Guszejnov, Dávid, Hopkins, Philip F.
openaire   +3 more sources