2006A&A...451..821N


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.02CEST15:41:23

2006A&A...451..821N - Astronomy and Astrophysics, volume 451, 821-833 (2006/6-1)

Clustering of the optical-afterglow luminosities of long gamma-ray bursts.

NARDINI M., GHISELLINI G., GHIRLANDA G., TAVECCHIO F., FIRMANI C. and LAZZATI D.

Abstract (from CDS):

We studied the optical afterglows of the 24 pre-SWIFT gamma-ray bursts (GRBs) with both known spectroscopic redshift and published estimates of the optical extinction in the source frame. We found an unexpected clustering of the optical-afterglow luminosities measured 12h (source frame time) after the trigger. For 21 out of 24 bursts, the distribution of the optical luminosities is narrower than the distribution of the X-ray luminosities, and even narrower than the distribution of the ratio between the monochromatic optical luminosities and the total isotropic, emitted prompt energy. Three bursts stand out from the distribution of the other sources, being underluminous by a factor ∼15. We compare this result with another somewhat analogous result concerning the luminosity of the X-ray afterglows studied earlier. We constructed the optical to X-ray spectral energy distribution for all our GRBs. For all but a minority of them, the optical and the X-ray emissions are consistent with being produced by the same radiation process. We discuss our results in the framework of the ``standard'' external-shock synchrotron model. Finally, we consider the behavior of the first GRBs of known redshifts detected by SWIFT. We find that these SWIFT GRBs entirely confirm our findings.

Abstract Copyright:

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

Simbad objects: 45

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Number of rows : 45

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 021004 gB 00 26 54.68 +18 55 41.6           ~ 514 1
2 GRB 050824 gB 00 48 56.100 +22 36 32.00 19.66 21.03 20.46     ~ 156 0
3 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 431 1
4 GRB 050908 gB 01 21 50.750 -12 57 17.20           ~ 157 1
5 GRB 000210 gB 01 59 15 -40 40.0           ~ 164 0
6 GRB 000911 gB 02 18 42 +07 48.0           ~ 147 0
7 GRB 050603 gB 02 39 56.839 -25 10 54.92     18.48     ~ 148 0
8 GRB 050318 gB 03 18 51.000 -46 23 43.61 18.10 18.68 17.58     ~ 157 0
9 GRB 970228 gB 05 01 46.7 +11 46 53           ~ 625 1
10 GRB 991216 gB 05 09 31.2983 +11 17 07.262           ~ 406 1
11 GRB 970508 gB 06 53 49.2 +79 16 19           ~ 840 1
12 SN 2002lt SN* 08 08 59.858 +06 43 37.52           SNIc: 338 1
13 GRB 051016B gB 08 48 27.810 +13 39 20.00 20.45         ~ 122 0
14 GRB 050505 gB 09 27 03.300 +30 16 23.70     20.74     ~ 170 1
15 GRB 020124 gB 09 32 50.8 -11 31 11           ~ 142 2
16 GRB 050319 gB 10 16 47.900 +43 32 53.80   18.02 17.01     ~ 232 1
17 GRB 980613 gB 10 17 57.8 +71 27 26           ~ 198 1
18 SN 2003dh SN* 10 44 50.030 +21 31 18.15     16.2     SNIcpec 1117 2
19 GRB 030323 gB 11 06 09.4 -21 46 13           ~ 125 1
20 GRB 011211 gB 11 15 16 -21 56.0           ~ 285 1
21 GRB 030226 gB 11 33 04.9 +25 53 56           ~ 186 2
22 GRB 011121 gB 11 34 26.67 -76 01 41.6       23.0   ~ 255 1
23 GRB 971214 gB 11 56 26.4 +65 12 01           ~ 434 1
24 GRB 030429 gB 12 13 07.495 -20 54 49.54           ~ 120 1
25 GRB 000418 gB 12 25 21 +20 05.0           ~ 201 0
26 GRB 050416 gB 12 33 54.600 +21 03 26.69     19.12     ~ 253 1
27 GRB 990510 gB 13 38 07.64 -80 29 48.8           ~ 465 1
28 GRB 020405 gB 13 58 03.12 -31 22 22.2   21.9 21.5     ~ 236 1
29 GRB 050730 gB 14 08 17.090 -03 46 18.90   20.32 17.68     ~ 282 1
30 GRB 010222 gB 14 52 12.55 +43 01 06.3           ~ 335 2
31 GRB 990123 gB 15 25 29 +44 45.0     8.95     ~ 963 1
32 GRB 000301C gB 16 20 18.5 +29 26 35           ~ 340 2
33 GRB 050401 gB 16 31 28.84 +02 11 14.5           ~ 302 0
34 GRB 000926 gB 17 04 15 +51 46.0           ~ 341 2
35 GRB 050126 gB 18 32 27.22 +42 22 14.2           ~ 113 0
36 SN 2005nc SN* 18 32 32.560 +26 20 22.34           SNIc: 347 1
37 GRB 000214 gB 18 54 27.0 -66 27 30           ~ 89 0
38 GRB 020813A gB 19 46 41.874 -19 36 04.81           ~ 285 1
39 GRB 050315 gB 20 25 54.100 -42 36 02.19           ~ 192 0
40 GRB 050922C gB 21 09 33.000 -08 45 30.10 15.15 15.86 14.69     ~ 250 0
41 GRB 051109 gB 22 01 11.0 +40 50 15           ~ 32 0
42 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 338 1
43 GRB 010921 gB 22 55 59.90 +40 55 52.9           ~ 159 1
44 GRB 051111A gB 23 12 33.170 +18 22 28.80 19.77 20.08 19.50     ~ 185 1
45 GRB 980703 gB 23 59 06.7 +08 35 07           ~ 421 1

    Equat.    Gal    SGal    Ecl

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2020.07.02-15:41:23

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