2005ApJ...625L..23C

Query : 2005ApJ...625L..23C

2005ApJ...625L..23C - Astrophys. J., 625, L23-L26 (2005/May-3)

Swift observations of GRB 050128: the early X-ray afterglow.

CAMPANA S., ANTONELLI L.A., CHINCARINI G., COVINO S., CUSUMANO G., MALESANI D., MANGANO V., MORETTI A., PAGANI C., ROMANO P., TAGLIAFERRI G., CAPALBI M., PERRI M., GIOMMI P., ANGELINI L., BOYD P., BURROWS D.N., HILL J.E., GRONWALL C., KENNEA J.A., KOBAYASHI S., KUMAR P., MESZAROS P., NOUSEK J.A., ROMING P.W.A., ZHANG B., ABBEY A.F., BEARDMORE A.P., BREEVELD A., GOAD M.R., GODET O., MASON K.O., OSBORNE J.P., PAGE K.L., POOLE T. and GEHRELS N.

Abstract (from CDS):

Swift discovered GRB 050128 with the Burst Alert Telescope and promptly pointed its narrow field instruments to monitor the afterglow. X-ray observations started 108 s after the trigger time. The early decay of the afterglow is relatively flat, with a temporal decay modeled with a power-law index of ~-0.3. A steepening occurs at later times (∼1500 s) with a power-law index of ~-1.3. During this transition, the observed X-ray spectrum does not change. We interpret this behavior as either an early jet break or evidence of a transition from the fast cooling regime to the slow cooling regime in a wind environment.

Abstract Copyright: ∼

Journal keyword(s): Gamma Rays: Bursts - X-Rays: Individual: Alphanumeric: GRB 050128

Simbad objects: 7

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Number of rows : 7
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 021004 gB 00 26 54.68 +18 55 41.6           ~ 560 0
2 GRB 050219A gB 11 05 38.990 -40 41 03.00           ~ 97 0
3 GRB 050215B gB 11 37 48.030 +40 47 43.39           ~ 71 0
4 GRB 050128 gB 14 38 17.750 -34 45 55.61           ~ 68 0
5 GRB 050126 gB 18 32 27.22 +42 22 14.2           ~ 129 0
6 GRB 050315 gB 20 25 54.100 -42 36 02.19           ~ 225 0
7 GRB 050117A gB 23 53 47.24 +65 56 00.2           ~ 65 0

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