Binary star progenitors of long gamma-ray bursts
TLDR
In this article, a binary channel for the progenitors of long gamma-ray bursts is presented, which may provide a means for massive stars to obtain the required high rotation rates.Abstract:
We present a binary channel for the progenitors of long gamma-ray bursts. We test the idea of producing rapidly rotating Wolf-Rayet stars in massive close binaries through mass accretion and consecutive quasi-chemically homogeneous evolution. The binary channel presented here may provide a means for massive stars to obtain the required high rotation rates. Moreover, it suggests that a possibly large fraction of long gamma-ray bursts occurs in runaway stars. This can have important observational consequences for both the positions of GRBs, and their afterglow properties.read more
Citations
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Journal ArticleDOI
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
TL;DR: 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.
Journal ArticleDOI
Modules for Experiments in Stellar Astrophysics (MESA): Binaries, Pulsations, and Explosions
Bill Paxton,Pablo Marchant,Josiah Schwab,Evan B. Bauer,Lars Bildsten,Lars Bildsten,Matteo Cantiello,Luc Dessart,Robert Farmer,Haili Hu,Norbert Langer,Richard H. D. Townsend,Dean M. Townsley,Francis Timmes +13 more
TL;DR: Modules for Experiments in Stellar Astrophysics (MESA) as discussed by the authors can now simultaneously evolve an interacting pair of differentially rotating stars undergoing transfer and loss of mass and angular momentum, greatly enhancing the prior ability to model binary evolution.
Journal ArticleDOI
Physical Properties of Wolf-Rayet Stars
TL;DR: The striking broad emission line spectroscopic appearance of Wolf-rayet stars has long defied analysis, owing to the extreme physical conditions within their line-and continuum-forminformin...
Journal ArticleDOI
Presupernova Evolution of Massive Single and Binary Stars
TL;DR: In this paper, the authors show that the main sequence stage offers the best opportunity to gauge the relevance of the various possible evolutionary scenarios, and sketching the post-main-sequence evolution of massive stars, for which observations of Wolf Rayet stars give essential clues.
Journal ArticleDOI
Mass Loss: Its Effect on the Evolution and Fate of High-Mass Stars
TL;DR: For example, the authors showed that mass loss rates for standard metallicity-dependent winds of hot stars are lower by a factor of 2-3 compared with rates adopted in modern stellar evolution codes, due to the influence of clumping on observed diagnostics.
References
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Journal ArticleDOI
Modules for experiments in stellar astrophysics (mesa): binaries, pulsations, and explosions
Bill Paxton,Pablo Marchant,Josiah Schwab,Evan B. Bauer,Lars Bildsten,Lars Bildsten,Matteo Cantiello,Luc Dessart,Robert Farmer,Haili Hu,Norbert Langer,Richard H. D. Townsend,Dean M. Townsley,Francis Timmes +13 more
TL;DR: Modules for Experiments in Stellar Astrophysics (MESA) as discussed by the authors can now simultaneously evolve an interacting pair of differentially rotating stars undergoing transfer and loss of mass and angular momentum, greatly enhancing the prior ability to model binary evolution.
Journal ArticleDOI
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
TL;DR: 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.
Journal ArticleDOI
The Progenitor stars of gamma-ray bursts
TL;DR: In this paper, the authors explore the evolution of very rapidly rotating massive stars, including stripped-down helium cores that might result from mergers or mass transfer in a binary, and single stars that rotate unusually rapidly on the main sequence.
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