Results 21 to 30 of about 1,207,219 (318)
Stellar populations dominated by massive stars in dusty starburst galaxies across cosmic time [PDF]
Nature, 2018 All measurements of cosmic star formation must assume an initial distribution of stellar masses—the stellar initial mass function—in order to extrapolate from the star-formation rate measured for typically rare, massive stars (of more than eight solar ...
Zhi-Yu Zhang +4 more
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The Origin of Massive Stars: The Inertial-inflow Model [PDF]
Astrophysical Journal, 2019 We address the problem of the origin of massive stars, namely the origin, path, and timescale of the mass flows that create them. Based on extensive numerical simulations, we propose a scenario where massive stars are assembled by large-scale, converging,
P. Padoan +4 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 Extinction toward the Galactic Center (GC) is extreme and limits observations of its stars to the infrared. In addition, the extinction varies on scales of arcseconds.
Shogo Nishiyama +2 more
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Constraining mixing in massive stars in the Small Magellanic Cloud [PDF]
Astronomy & Astrophysics, 2019 Context. The evolution of massive stars is strongly influenced by internal mixing processes such as semiconvection, convective core overshooting, and rotationally induced mixing. None of these processes are currently well constrained. Aims.
A. Schootemeijer +3 more
semanticscholar +1 more source
Low-frequency Variability in Massive Stars: Core Generation or Surface Phenomenon? [PDF]
Astrophysical Journal, 2019 Bowman et al. reported low-frequency photometric variability in 164 O- and B-type stars observed with K2 and TESS. They interpret these motions as internal gravity waves, which could be excited stochastically by convection in the cores of these stars ...
D. Lecoanet +8 more
semanticscholar +1 more source
Binary Interaction Dominates the Evolution of Massive Stars [PDF]
Science, 2012 Star Partners Stars more massive than eight times the mass of the Sun are rare and short-lived, yet they are fundamentally important because they produce all the heavy elements in the universe, such as iron, silicon, and calcium. Sana et al. (p.
H. Sana +9 more
semanticscholar +1 more source
Asteroseismology of High-Mass Stars: New Insights of Stellar Interiors With Space Telescopes
Frontiers in Astronomy and Space Sciences, 2020 Massive stars are important metal factories in the Universe. They have short and energetic lives, and many of them inevitably explode as a supernova and become a neutron star or black hole.
Dominic M. Bowman
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Observational Properties of 155 O- and B-type Massive Pulsating Stars
The Astrophysical Journal Supplement Series, 2023 O- and B-type (OB-type) pulsating stars are important objects for studying the structure and evolution of massive stars through asteroseismology. A large amount of data from various sky surveys provides an unprecedented opportunity to search for and ...
Xiang-dong Shi +5 more
doaj +1 more source
Response to Comment on “An excess of massive stars in the local 30 Doradus starburst” [PDF]
Science, 2018 Farr and Mandel reanalyze our data, finding initial mass function slopes for high-mass stars in 30 Doradus that agree with our results. However, their reanalysis appears to underpredict the observed number of massive stars.
F. Schneider +31 more
semanticscholar +1 more source
Galaxies, 2019 Several decades of observations of the most massive and most luminous stars have revealed a complex upper HR Diagram, shaped by mass loss, and inhabited by a variety of evolved stars exhibiting the consequences of their mass loss histories.
Roberta M. Humphreys
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