2000ApJ...534L.159N

Query : 2000ApJ...534L.159N

2000ApJ...534L.159N - Astrophys. J., 534, L159-L162 (2000/May-2)

Multiple sub-jet model of gamma-ray bursts and possible origin of X-ray precursors and postcursors.

NAKAMURA T.

Abstract (from CDS):

We assume that internal shocks of gamma-ray bursts (GRBs) consist of multiple sub-jets with a collimation half-angle of about several times γ–1i, where γi is the Lorentz factor of each sub-jet. If by chance a sub-jet is first emitted off-axis from the line of sight, the observed peak energy can be in the X-ray region. Next, if by chance a subsequent sub-jet is emitted along the line of sight, then the peak energy will be in the gamma-ray region and the gamma ray may arrive after the X-ray precursor from the former sub-jet depending on parameters. This model predicts a new class of GRBs with extremely weak and short gamma-ray emission but X-ray precursors and/or postcursors as well as an afterglow.

Abstract Copyright: ∼

Journal keyword(s): Gamma Rays: Bursts

Simbad objects: 11

goto Full paper

goto View the references in ADS

Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 GRB 970228 gB 05 01 46.7 +11 46 53           ~ 650 1
2 GRB 970508 gB 06 53 49.2 +79 16 19           ~ 883 1
3 GRB 980329 gB 07 02 41 +38 50.7           ~ 276 1
4 GRB 900126 gB 08 46.5 -38 11           ~ 16 0
5 GRB 971214 gB 11 56 26.4 +65 12 01           ~ 445 1
6 GRB 990510 gB 13 38 07.64 -80 29 48.8           ~ 499 1
7 GRB 990123 gB 15 25 29 +44 45.0     8.95     ~ 1012 1
8 GRB 970111 gB 15 28 15.0 +19 36 18           ~ 140 0
9 4B 960720 gB 17 29.7 +49 20           ~ 54 0
10 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1928 2
11 GRB 980519 gB 23 22 21.5 +77 15 43           ~ 203 0

To bookmark this query, right click on this link: simbad:objects in 2000ApJ...534L.159N and select 'bookmark this link' or equivalent in the popup menu