2011A&A...531A..20G


C.D.S. - SIMBAD4 rel 1.7 - 2019.07.20CEST19:02:06

2011A&A...531A..20G - Astronomy and Astrophysics, volume 531A, 20-20 (2011/7-1)

Rest-frame properties of 32 gamma-ray bursts observed by the Fermi gamma-ray burst monitor.

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

Abstract (from CDS):

In this paper we study the main spectral and temporal properties of gamma-ray bursts (GRBs) observed by Fermi/GBM. We investigate these key properties of GRBs in the rest-frame of the progenitor and test for possible intra-parameter correlations to better understand the intrinsic nature of these events. Our sample comprises 32 GRBs with measured redshift that were observed by GBM until August 2010. 28 of them belong to the long-duration population and 4 events were classified as short/hard bursts. For all of these events we derive, where possible, the intrinsic peak energy in the νFν spectrum (Ep,rest), the duration in the rest-frame, defined as the time in which 90% of the burst fluence was observed (T90,rest) and the isotropic equivalent bolometric energy (Eiso). The distribution of Ep,rest has mean and median values of 1.1MeV and 750keV, respectively. A log-normal fit to the sample of long bursts peaks at ∼800keV. No high-Ep population is found but the distribution is biased against low Ep values. We find the lowest possible Ep that GBM can recover to be ≃15keV. The T90,rest distribution of long GRBs peaks at ∼10s. The distribution of Eiso has mean and median values of 8.9x1052erg and 8.2x1052erg, respectively. We confirm the tight correlation between Ep,rest and Eiso (Amati relation) and the one between Ep,rest and the 1-s peak luminosity (Lp) (Yonetoku relation). Additionally, we observe a parameter reconstruction effect, i.e. the low-energy power law index α gets softer when Ep is located at the lower end of the detector energy range. Moreover, we do not find any significant cosmic evolution of neither Ep,rest nor T90,rest.

Abstract Copyright:

Journal keyword(s): gamma-ray burst: general

Simbad objects: 34

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Number of rows : 34

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 GRB 100117A gB 00 45 04.56 -01 35 41.7           ~ 95 0
2 GRB 100814A gB 01 29 53.61 -17 59 43.6           ~ 141 0
3 GRB 081222 gB 01 30 57.76 -34 05 44.0           ~ 142 0
4 GRB 091208B gB 01 57 38.50 +16 52 50.7           ~ 145 0
5 SN 2009nz SN* 02 26 19.87 -18 57 08.6           SN.? 217 1
6 GRB 090926B gB 03 05 14.30 -38 59 50.9           ~ 107 1
7 GRB 090929A gB 03 45 57.9 -05 57 50           ~ 23 0
8 GRB 081121 gB 05 57 07.70 -60 36 42.1           ~ 104 0
9 GRB 090328 gB 06 02 39.69 -41 52 55.1           ~ 135 1
10 GRB 080928 gB 06 20 16.85 -55 11 59.3           ~ 122 1
11 GRB 080916C gB 07 59 23.24 -56 38 16.8           ~ 301 0
12 GRB 090102 gB 08 32 59.50 +33 06 25.7           ~ 173 0
13 GRB 090516A gB 09 12 59 -11 50.9           ~ 114 0
14 GRB 090519 gB 09 29 16.20 +00 11 23.9           ~ 69 0
15 GRB 090423 gB 09 55 33.19 +18 08 57.7           ~ 302 0
16 GRB 091020 gB 11 42 55.20 +50 58 42.0           ~ 126 0
17 GRB 090424 gB 12 38 07.40 +16 49 45.9           ~ 191 0
18 GRB 090323 gB 12 42 50.28 +17 03 11.9           ~ 179 1
19 GRB 100414A gB 12 48 30.0 +08 41 35           ~ 92 0
20 GRB 091003A gB 16 46 04.680 +36 37 31.08           ~ 96 0
21 GRB 090904B gB 17 36 44.54 -25 12 46.1           ~ 43 0
22 GRB 090902B gB 17 39 45.26 +27 19 28.1           ~ 304 0
23 GRB 081008 gB 18 39 52.40 -57 25 58.8           ~ 146 0
24 GRB 090618 gB 19 36 01.80 +78 21 07.1           ~ 259 0
25 GRB 080905B gB 20 06 57.90 -62 33 46.4           ~ 75 0
26 GRB 080804 gB 21 54 41.90 -53 11 20.2           ~ 112 0
27 GRB 090510 gB 22 14 12.60 -26 35 51.1           ~ 378 1
28 GRB 080916A gB 22 25 09.30 -57 01 33.7           ~ 134 0
29 GRB 091024 gB 22 37 +56.9           ~ 101 0
30 SN 2008hw SN* 22 39 50.39 -40 08 49.1           SNIc 135 1
31 GRB 090927 gB 22 55 53.41 -70 58 49.3           ~ 63 0
32 GRB 100816A gB 23 26 57.56 +26 34 42.6           ~ 106 0
33 GRB 090926A gB 23 33 36.18 -66 19 25.9           ~ 237 0
34 GRB 080810 gB 23 47 08.00 +00 18 35.1           ~ 169 0

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2019.07.20-19:02:06

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