Stellar evolution, GRB and their hosts

I. E. Panchenko; V. M. Lipunov; K. A. Postnov; M. E. Prokhorov

doi:10.1051/aas:1999333

All issues

Volume 138 / No 3 (September 1999)

Astron. Astrophys. Suppl. Ser., 138 3 (1999) 517-518

Abstract

Free Access

Issue		Astron. Astrophys. Suppl. Ser. Volume 138, Number 3, September 1999 Gamma-Ray Bursts in the Afterglow Era Contents Rome, November 3-6, 1998


Page(s)		517 - 518
DOI		https://doi.org/10.1051/aas:1999333
Published online		15 September 1999

Astron. Astrophys. Suppl. Ser. 138, 517-518 (1999)

Stellar evolution, GRB and their hosts

I. E. Panchenko¹, V. M. Lipunov¹^,2, K. A. Postnov¹ and M. E. Prokhorov²

¹ Faculty of Physics, Moscow State University, 119899 Moscow, Russia
² Sternberg Astronomical Institute, Moscow State University, 119899 Moscow, Russia

Received: 21 January 1999
Accepted: 1 June 1999

Abstract

We compute the GRB rates in different types of galaxies by performing a population synthesis using the "Scenario Machine” code in the framework of merging binary relativistic stars model. Our model predicts that of GRB should occur in elliptical galaxies, and this fraction should increase with the redshift. This fraction is comparable with the observed fraction of GRB without (detectable) X-ray afterglows.

Key words: gamma-rays: bursts