The Progenitor stars of gamma-ray bursts
TLDR
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.Abstract:
Those massive stars that give rise to gamma-ray bursts (GRBs) during their deaths must be endowed with an unusually large amount of angular momentum in their inner regions, 1-2 orders of magnitude greater than the ones that make common pulsars. Yet the inclusion of mass loss and angular momentum transport by magnetic torques during the precollapse evolution is known to sap the core of the necessary rotation. Here we 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. For the highest possible rotation rates (about 400 km s-1), a novel sort of evolution is encountered in which single stars mix completely on the main sequence, never becoming red giants. Such stars, essentially massive "blue stragglers," produce helium-oxygen cores that rotate unusually rapidly. Such stars might comprise roughly 1% of all stars above 10 M☉ and can, under certain circumstances, retain enough angular momentum to make GRBs. Because this possibility is very sensitive to mass loss, GRBs are much more probable in regions of low metallicity.read more
Citations
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Journal ArticleDOI
Modules for Experiments in Stellar Astrophysics (MESA): Planets, Oscillations, Rotation, and Massive Stars
Bill Paxton,Matteo Cantiello,Phil Arras,Lars Bildsten,Edward F. Brown,Aaron Dotter,Christopher R. Mankovich,Michael H. Montgomery,Dennis Stello,Francis Timmes,Richard H. D. Townsend +10 more
TL;DR: Modules for Experiments in Stellar Astrophysics (MESA) as discussed by the authors is an open source software package for modeling the evolution of stellar structures and composition. But it is not suitable for large-scale systems such as supernovae.
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 Supernova Gamma-Ray Burst Connection
S. E. Woosley,Joshua S. Bloom +1 more
TL;DR: In this article, it was shown that most long-duration soft-spectrum gamma-ray bursts are accompanied by massive stellar explosions (GRB-SNe) and that most of the energy in the explosion is contained in nonrelativistic ejecta (producing the supernova) rather than in the relativistic jets responsible for making the burst and its afterglow.
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 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.
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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An Unusual Supernova in the Error Box of the Gamma-Ray Burst of 25 April 1998
Titus Galama,P. M. Vreeswijk,J. van Paradijs,J. van Paradijs,Chryssa Kouveliotou,Chryssa Kouveliotou,T. Augusteijn,H. Böhnhardt,J. Brewer,V. Doublier,J.-F. Gonzalez,Bruno Leibundgut,C. Lidman,Olivier Hainaut,Ferdinando Patat,John Heise,J. J. M. in 't Zand,Kevin Hurley,Paul J. Groot,Richard G. Strom,Paolo A. Mazzali,Koichi Iwamoto,Ken'ichi Nomoto,Hideyuki Umeda,Takahisa Nakamura,T. R. Young,Tsutomu Suzuki,Toshikazu Shigeyama,Thomas M. Koshut,Marc Kippen,Marc Kippen,C. R. Robinson,C. R. Robinson,P. de Wildt,Ralph A. M. J. Wijers,Nial R. Tanvir,Jochen Greiner,Elena Pian,E. Palazzi,F. Frontera,N. Masetti,Luciano Nicastro,M. Feroci,Enrico Costa,L. Piro,Bruce A. Peterson,C. G. Tinney,B. J. Boyle,Russell D. Cannon,R. A. Stathakis,Elaine M. Sadler,Michael C. Begam,Philip A. Ianna +52 more
TL;DR: In this paper, the authors reported the discovery of transient optical emission in the error box of the gamma-ray burst GRB980425, the light curve of which was very different from that of previous optical afterglows associated with Gamma-ray bursts.
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