Binary Interaction Dominates the Evolution of Massive Stars
Hugues Sana,S. E. de Mink,S. E. de Mink,A. de Koter,A. de Koter,Norbert Langer,Chris Evans,Mark Gieles,Eric Gosset,Robert G. Izzard,J.-B. Le Bouquin,Fabian Schneider +11 more
TLDR
More than 70% of all massive stars will exchange mass with a companion, leading to a binary merger in one-third of the cases, greatly exceed previous estimates and imply that binary interaction dominates the evolution of massive stars, with implications for populations ofmassive stars and their supernovae.Abstract:
The presence of a nearby companion alters the evolution of massive stars in binary systems, leading to phenomena such as stellar mergers, x-ray binaries, and gamma-ray bursts. Unambiguous constraints on the fraction of massive stars affected by binary interaction were lacking. We simultaneously measured all relevant binary characteristics in a sample of Galactic massive O stars and quantified the frequency and nature of binary interactions. More than 70% of all massive stars will exchange mass with a companion, leading to a binary merger in one-third of the cases. These numbers greatly exceed previous estimates and imply that binary interaction dominates the evolution of massive stars, with implications for populations of massive stars and their supernovae.read more
Citations
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Mesa isochrones and stellar tracks (mist). i. solar-scaled models
TL;DR: The Modules for Experiments in Stellar Astrophysics (MESA) Isochrones and Stellar Tracks (MIST) project as discussed by the authors provides a set of stellar evolutionary tracks and isochrones computed using MESA, a state-of-the-art 1D stellar evolution package.
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Stellar Multiplicity
Gaspard Duchêne,Adam L. Kraus +1 more
TL;DR: In this article, the authors summarize the current empirical knowledge of stellar multiplicity for Main Sequence stars and brown dwarfs, as well as among populations of Pre-Main Sequence stars, and embedded protostars.
Journal ArticleDOI
MESA Isochrones and Stellar Tracks (MIST). I: Solar-Scaled Models
TL;DR: The Modules for Experiments in Stellar Astrophysics (MESA) Isochrones and Stellar Tracks (MIST) project as mentioned in this paper provides a set of stellar evolutionary tracks and isochrones computed using MESA, a state-of-the-art 1D stellar evolution package.
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The first gravitational-wave source from the isolated evolution of two stars in the 40–100 solar mass range
TL;DR: High-precision numerical simulations of the formation of binary black holes via the evolution of isolated binary stars are reported, providing a framework within which to interpret the first gravitational-wave source, GW150914, and to predict the properties of subsequent binary-black-hole gravitational- wave events.
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Mind Your Ps and Qs: The Interrelation between Period (P) and Mass-ratio (Q) Distributions of Binary Stars
Maxwell Moe,Rosanne Di Stefano +1 more
TL;DR: In this article, the properties of companions to O-type and B-type main-sequence (MS) stars differ among three regimes: short orbital periods P = 0.5, and the companion frequency peaks at intermediate periods log P (days) = 3.5.
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