CONVERSION OF NEUTRON-STARS TO STRANGE STARS AS A POSSIBLE ORIGIN OF GAMMA-RAY BURSTS

Authors
CHENG KS DAI ZG
Citation
Ks. Cheng et Zg. Dai, CONVERSION OF NEUTRON-STARS TO STRANGE STARS AS A POSSIBLE ORIGIN OF GAMMA-RAY BURSTS, Physical review letters, 77(7), 1996, pp. 1210-1213
Citations number
55
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
77
Issue
7
Year of publication
1996
Pages
1210 - 1213
Database
ISI
SICI code
0031-9007(1996)77:7<1210:CONTSS>2.0.ZU;2-M
Abstract
We propose that some neutron stars in low-mass x-ray binaries can accr ete sufficient mass to undergo a phase transition to become strange st ars. The energy released per conversion event satisfies the requiremen ts of cosmological gamma-ray bursts, and the Lorentz factor of the res ultant expanding fireball may exceed 5 x 10(3) because the strange sta r has very low baryon contamination. The model burst rate is consisten t with observations.