2012ApJ...744..141B

Query : 2012ApJ...744..141B

2012ApJ...744..141B - Astrophys. J., 744, 141 (2012/January-2)

Temporal deconvolution study of long and short gamma-ray burst light curves.

BHAT P.N., BRIGGS M.S., CONNAUGHTON V., KOUVELIOTOU C., VAN DER HORST A.J., PACIESAS W., MEEGAN C.A., BISSALDI E., BURGESS M., CHAPLIN V., DIEHL R., FISHMAN G., FITZPATRICK G., FOLEY S., GIBBY M., GILES M.M., GOLDSTEIN A., GREINER J., GRUBER D., GUIRIEC S., VON KIENLIN A., KIPPEN M., McBREEN S., PREECE R., RAU A., TIERNEY D. and WILSON-HODGE C.

Abstract (from CDS):

The light curves of gamma-ray bursts (GRBs) are believed to result from internal shocks reflecting the activity of the GRB central engine. Their temporal deconvolution can reveal potential differences in the properties of the central engines in the two populations of GRBs which are believed to originate from the deaths of massive stars (long) and from mergers of compact objects (short). We present here the results of the temporal analysis of 42 GRBs detected with the Gamma-ray Burst Monitor onboard the Fermi Gamma-ray Space Telescope. We deconvolved the profiles into pulses, which we fit with lognormal functions. The distributions of the pulse shape parameters and intervals between neighboring pulses are distinct for both burst types and also fit with lognormal functions. We have studied the evolution of these parameters in different energy bands and found that they differ between long and short bursts. We discuss the implications of the differences in the temporal properties of long and short bursts within the framework of the internal shock model for GRB prompt emission.

Abstract Copyright: ∼

Journal keyword(s): gamma-ray burst: general - methods: data analysis - relativistic processes

VizieR on-line data: <Available at CDS (J/ApJ/744/141): table1.dat table3.dat table4.dat>

Simbad objects: 43

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Number of rows : 43
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 Fermi bn090227772 gB 00 47 +32.2           ~ 53 0
2 Fermi bn090308734 gB 01 27.6 -54 18           ~ 21 0
3 GRB 081125 gB 02 51 -18.9           ~ 30 0
4 GRB 081209 gB 03 01 +63.5           ~ 28 0
5 Fermi bn081129161 gB 04 13 -54.9           ~ 21 0
6 Fermi bn081009690 gB 04 18 +14.2           ~ 11 0
7 GRB 090617 gB 05 15.6 +15 39           ~ 26 0
8 GRB 081121 gB 05 57 07.70 -60 36 42.1           ~ 152 0
9 GRB 090328 gB 06 02 39.69 -41 52 55.1           ~ 194 1
10 Fermi bn080925775 gB 06 24.4 +18 12           ~ 28 0
11 Fermi bn080807993 gB 06 47 -16.0           ~ 25 0
12 GRB 080723D gB 07 01 +71.1           ~ 18 0
13 GRB 090228 gB 07 07.2 -24 18           ~ 45 0
14 GRB 081110 gB 07 27 +21.4           ~ 29 0
15 GRB 081207 gB 07 29.6 +70 30           ~ 26 0
16 Fermi bn090425377 gB 07 54 +68.1           ~ 23 0
17 GRB 080916C gB 07 59 23.24 -56 38 16.8           ~ 386 0
18 Fermi bn090429753 gB 08 21 +06.2           ~ 22 0
19 GRB 081215A gB 08 22 +54.0           ~ 57 0
20 GRB 090102 gB 08 32 59.50 +33 06 25.7           ~ 253 0
21 Fermi bn081216531 gB 08 37 +07.6           ~ 35 0
22 GRB 090305B gB 09 00.0 +74 18           ~ 22 0
23 GRB 080817 gB 10 05 09.600 -19 15 36.00           ~ 27 0
24 Fermi bn090626189 gB 11 20 -33.5           ~ 54 0
25 GRB 080723B gB 11 47 19.77 -60 14 27.9           ~ 53 0
26 GRB 080906B gB 12 11.2 -06 24           ~ 25 0
27 GRB 090424 gB 12 38 07.40 +16 49 45.9           ~ 269 0
28 Fermi bn090323002 gB 12 42 50.28 +17 03 11.9           ~ 244 1
29 GRB 081224A gB 13 26.8 +75 06           ~ 32 0
30 Fermi bn090217206 gB 13 40 -08.4           ~ 56 0
31 Fermi bn081101532 gB 13 50 -28.0           ~ 19 0
32 Fermi bn081231140 gB 13 54.4 -35 48           ~ 15 0
33 GRB 090529 gB 14 09 52.49 +24 27 33.5           ~ 89 0
34 GRB 080825C gB 15 28.8 -04 54           ~ 71 0
35 GRB 090620 gB 15 49.4 +61 09           ~ 29 0
36 GRB 080723 gB 18 17 50.60 -06 54 34.8           ~ 6 0
37 Fermi bn080905499 G 19 10 42.0450 -18 52 54.510           ~ 200 0
38 GRB 090618 gB 19 36 01.80 +78 21 07.1           ~ 358 0
39 Fermi bn090623107 gB 20 36 -43.2           ~ 20 0
40 GRB 090528B gB 20 49 +32.7           ~ 30 0
41 Fermi bn090510016 G 22 14 12.6230 -26 34 58.550           ~ 548 0
42 Fermi bn081122520 gB 22 36.4 +40 00           ~ 27 0
43 GRB 090131 gB 23 29.2 +21 12           ~ 37 0

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