2011A&A...526A..30G


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST01:12:08

2011A&A...526A..30G - Astronomy and Astrophysics, volume 526A, 30-30 (2011/2-1)

The nature of ``dark'' gamma-ray bursts.

GREINER J., KRUEHLER T., KLOSE S., AFONSO P., CLEMENS C., FILGAS R., HARTMANN D.H., KUEPCUE YOLDAS A., NARDINI M., OLIVARES E.F., RAU A., ROSSI A., SCHADY P. and UPDIKE A.

Abstract (from CDS):

Thirteen years after the discovery of the first afterglows, the nature of dark gamma-ray bursts (GRB) still eludes explanation: while each long-duration GRB typically has an X-ray afterglow, optical/NIR emission is only seen for 40-60% of them. Here we use the afterglow detection statistics of the systematic follow-up observations performed with GROND since mid-2007 in order to derive the fraction of ``dark bursts'' according to different methods, and to distinguish between various scenarios for ``dark bursts''. Observations were performed with the 7-channel ``Gamma-Ray Optical and Near-infrared Detector'' (GROND) at the 2.2m MPI/ESO telescope. We used the afterglow detection rate in dependence on the delay time between GRB and the first GROND exposure. For long-duration Swift bursts with a detected X-ray afterglow, we achieve a 90% (35/39) detection rate of optical/NIR afterglows whenever our observations started within less than 240min after the burst. Complementing our GROND data with Swift/XRT spectra we construct broad-band spectral energy distributions and derive rest-frame extinctions. We detect 25-40% ``dark bursts'', depending on the definition used. The faint optical afterglow emission of ``dark bursts'' is mainly due to a combination of two contributing factors: (i) moderate intrinsic extinction at moderate redshifts, and (ii) about 22% of ``dark'' bursts at redshift >5.

Abstract Copyright:

Journal keyword(s): gamma-rays burst: general - techniques: photometric

Simbad objects: 46

goto Full paper

goto View the reference in ADS

Number of rows : 46

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 GRB 071031 gB 00 25 37.40 -58 03 33.9           ~ 142 0
2 GRB 080710 gB 00 33 05.68 +19 30 05.8           ~ 103 0
3 GRB 100117A gB 00 45 04.56 -01 35 41.7           ~ 109 0
4 GRB 080915A gB 01 11 47.35 -76 01 13.4           ~ 18 0
5 GRB 081222 gB 01 30 57.76 -34 05 44.0           ~ 151 0
6 GRB 091018 gB 02 08 46 -57 33.0           ~ 117 0
7 GRB 080707 gB 02 10 28.48 +33 06 35.1           ~ 62 0
8 SN 2009nz SN* 02 26 19.87 -18 57 08.6           ~ 226 1
9 GRB 070802 gB 02 27 35.91 -55 31 39.1           ~ 136 0
10 GRB 080411 gB 02 31 54.82 -71 18 07.5           ~ 80 0
11 GRB 081228 gB 02 37 50.80 +30 51 09.2           ~ 32 0
12 GRB 090926B gB 03 05 14.30 -38 59 50.9           ~ 112 1
13 GRB 091221 gB 03 43 11.40 +23 14 28.0           ~ 53 0
14 GRB 091029 gB 04 00 40.00 -55 57 12.7           ~ 117 0
15 GRB 080913 gB 04 22 57.90 -25 07 38.6           ~ 174 0
16 GRB 081121 gB 05 57 07.70 -60 36 42.1           ~ 110 0
17 GRB 080129 gB 07 01 08.13 -07 50 47.8           ~ 67 0
18 GRB 081226A gB 08 02 00.35 -69 01 45.9           ~ 46 0
19 GRB 080516 gB 08 02 34.16 -26 09 35.3           ~ 42 0
20 GRB 090102 gB 08 32 59.50 +33 06 25.7           ~ 184 0
21 GRB 100205A gB 09 25 33.00 +31 44 25.8           ~ 31 0
22 GRB 090519 gB 09 29 16.20 +00 11 23.9           ~ 72 0
23 GRB 070306 gB 09 52 23.220 +10 28 55.20           ~ 177 1
24 GRB 100316B gB 10 54 00 -45 28.0           ~ 42 0
25 GRB 080330 gB 11 17 06.70 +30 36 24.1           ~ 119 0
26 GRB 080218B gB 11 51 49.66 -53 05 49.0           ~ 27 0
27 GRB 080607 gB 12 59 47.14 +15 55 09.6           ~ 209 0
28 GRB 090313 gB 13 13 36.00 +08 05 10.7           ~ 116 0
29 GRB 090429B gB 14 02 40.10 +32 10 14.6           ~ 121 0
30 GRB 090814 gB 15 58 26.350 +25 37 52.42           ~ 11 0
31 GRB 090305 gB 16 07 02.0 -31 34 00           ~ 38 0
32 GRB 080210 gB 16 45 04.03 +13 49 36.3           ~ 92 0
33 GRB 080605 gB 17 28 30.04 +04 00 56.9           ~ 153 0
34 GRB 090904B gB 17 36 44.54 -25 12 46.1           ~ 45 0
35 GRB 080919 gB 17 40 53.00 -42 22 29.5           ~ 32 0
36 GRB 970828 gB 18 08 31.6 +59 18 51           ~ 335 1
37 GRB 081008 gB 18 39 52.40 -57 25 58.8           ~ 156 0
38 GRB 080520 gB 18 40 46.50 -54 59 30.4           ~ 56 0
39 GRB 080413A gB 19 09 11.73 -27 40 39.6           ~ 123 0
40 GRB 071010A gB 19 12 14.42 -32 24 06.2           ~ 105 0
41 GRB 080805 gB 20 56 55.30 -62 25 58.8           ~ 79 0
42 GRB 080413B gB 21 44 34.62 -19 58 51.2           ~ 148 0
43 GRB 080804 gB 21 54 41.90 -53 11 20.2           ~ 117 0
44 SN 2008hw SN* 22 39 50.39 -40 08 49.1           SNIc 144 1
45 GRB 081029 gB 23 07 06 -68 10.7           ~ 93 0
46 GRB 090812 gB 23 32 48.5 -10 36 17           ~ 121 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2011A&A...526A..30G and select 'bookmark this link' or equivalent in the popup menu


2020.07.04-01:12:08

© Université de Strasbourg/CNRS

    • Contact