Neutron star binaries and long-duration gamma-ray bursts
(2006) In Monthly Notices of the Royal Astronomical Society 372(3). p.1351-1356- Abstract
- Cosmological long-duration gamma-ray bursts (LGRBs) are thought to originate from the core collapse to black holes (BHs) of stripped massive stars. Those with sufficient rotation form a centrifugally supported torus whose collapse powers the GRB. We investigate the role of tidal locking within a tight binary as a source of the necessary angular momentum. We find that the binary orbit must be no wider than a few solar radii for a torus to form upon core collapse. Comparing this criterion to the observed population of binaries containing two compact objects suggests that rotation may have been important in the formation of up to 50 per cent of the observed systems. As these systems created a neutron star and not a BH, they presumably did not... (More)
- Cosmological long-duration gamma-ray bursts (LGRBs) are thought to originate from the core collapse to black holes (BHs) of stripped massive stars. Those with sufficient rotation form a centrifugally supported torus whose collapse powers the GRB. We investigate the role of tidal locking within a tight binary as a source of the necessary angular momentum. We find that the binary orbit must be no wider than a few solar radii for a torus to form upon core collapse. Comparing this criterion to the observed population of binaries containing two compact objects suggests that rotation may have been important in the formation of up to 50 per cent of the observed systems. As these systems created a neutron star and not a BH, they presumably did not produce highly luminous GRBs. We suggest instead that they make the subset of GRBs in the relatively local universe which have much lower luminosity. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/386656
- author
- Levan, Andrew J. ; Davies, Melvyn B LU and King, Andrew R.
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- gamma-rays : bursts
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 372
- issue
- 3
- pages
- 1351 - 1356
- publisher
- Oxford University Press
- external identifiers
-
- wos:000241389400034
- scopus:33750147742
- ISSN
- 1365-2966
- DOI
- 10.1111/j.1365-2966.2006.10942.x
- language
- English
- LU publication?
- yes
- id
- bc35664f-57f4-4ab2-933e-e0f594330d93 (old id 386656)
- date added to LUP
- 2016-04-01 12:14:28
- date last changed
- 2024-01-08 13:23:07
@article{bc35664f-57f4-4ab2-933e-e0f594330d93,
abstract = {{Cosmological long-duration gamma-ray bursts (LGRBs) are thought to originate from the core collapse to black holes (BHs) of stripped massive stars. Those with sufficient rotation form a centrifugally supported torus whose collapse powers the GRB. We investigate the role of tidal locking within a tight binary as a source of the necessary angular momentum. We find that the binary orbit must be no wider than a few solar radii for a torus to form upon core collapse. Comparing this criterion to the observed population of binaries containing two compact objects suggests that rotation may have been important in the formation of up to 50 per cent of the observed systems. As these systems created a neutron star and not a BH, they presumably did not produce highly luminous GRBs. We suggest instead that they make the subset of GRBs in the relatively local universe which have much lower luminosity.}},
author = {{Levan, Andrew J. and Davies, Melvyn B and King, Andrew R.}},
issn = {{1365-2966}},
keywords = {{gamma-rays : bursts}},
language = {{eng}},
number = {{3}},
pages = {{1351--1356}},
publisher = {{Oxford University Press}},
series = {{Monthly Notices of the Royal Astronomical Society}},
title = {{Neutron star binaries and long-duration gamma-ray bursts}},
url = {{http://dx.doi.org/10.1111/j.1365-2966.2006.10942.x}},
doi = {{10.1111/j.1365-2966.2006.10942.x}},
volume = {{372}},
year = {{2006}},
}