2009MNRAS.395..328P

Query : 2009MNRAS.395..328P

2009MNRAS.395..328P - Mon. Not. R. Astron. Soc., 395, 328-334 (2009/May-1)

The unusual X-ray light curve of GRB080307: the onset of the afterglow ?

PAGE K.L., WILLINGALE R., O'BRIEN P.T., TANVIR N.R., OSBORNE J.P., ZHANG B., HOLLAND S.T., LEVAN A.J., MELANDRI A., STARLING R.L.C., BERSIER D., BURROWS D.N., GEACH J.E. and MAXTED P.

Abstract (from CDS):

Swift-detected GRB080307 showed an unusual smooth rise in its X-ray light curve around 100s after the burst, at the start of which the emission briefly softened. This `hump' has a longer duration than is normal for a flare at early times and does not demonstrate a typical flare profile. Using a two-component power-law-to-exponential model, the rising emission can be modelled as the onset of the afterglow, something which is very rarely seen in Swift-X-ray light curves. We cannot, however, rule out that the hump is a particularly slow early-time flare, or that it is caused by upscattered reverse shock electrons.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): radiation mechanisms: non-thermal - gamma-rays: bursts - X-rays: individual: GRB080307

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 GRB 070110 gB 00 03 39.270 -52 58 27.00 21.8 21.9 21.2     ~ 201 0
2 GRB 080523 gB 01 23 11.53 -64 01 50.9           ~ 33 0
3 GRB 050406 gB 02 17 52.200 -50 11 15.81     18.83     ~ 122 0
4 GRB 061007 gB 03 05 19.510 -50 30 02.50 14.28 14.40 12.95     ~ 289 1
5 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 940 1
6 GRB 070714B gB 03 51 22.30 +28 17 51.3           ~ 216 1
7 GRB 070328 gB 04 20 27.680 -34 04 00.60 20.29         ~ 87 0
8 GRB 080913 gB 04 22 57.90 -25 07 38.6           ~ 193 0
9 GRB 080205 gB 06 33 00.620 +62 47 31.98           ~ 48 0
10 GRB 081028 gB 08 07 34.40 +02 18 16.8           ~ 110 0
11 GRB 060427 gB 08 17 03.910 +62 40 16.50           ~ 48 0
12 GRB 080307 gB 09 06 30.73 +35 08 19.8           ~ 51 0
13 GRB 050502B gB 09 30 10.024 +16 59 48.07           ~ 161 0
14 GRB 080721A gB 14 57 55.76 -11 43 24.9           ~ 164 0
15 GRB 080229 gB 15 12 52.31 -14 42 16.2           ~ 64 0
16 GRB 051117A gB 15 13 34.020 +30 52 12.30 18.66 19.81       ~ 68 0
17 GRB 080319C gB 17 15 55.48 +55 23 31.7           ~ 157 0
18 GRB 080605 gB 17 28 30.04 +04 00 56.9           ~ 176 0
19 GRB 080503 gB 19 06 28.74 +68 47 35.8           ~ 155 0
20 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1821 2
21 GRB 060105 gB 19 50 00.680 +46 20 55.40           ~ 84 0
22 GRB 070508 gB 20 51 11.810 -78 23 04.88     19.62     ~ 131 0
23 GRB 050422 gB 21 37 54.650 +55 46 46.40     19.85     ~ 44 0
24 GRB 061110A gB 22 25 09.800 -02 15 30.70 21.43         ~ 126 0
25 Fermi bn080810549 gB 23 47 08.00 +00 18 35.1           ~ 213 0

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