2011A&A...529A.110C

Query : 2011A&A...529A.110C

2011A&A...529A.110C - Astronomy and Astrophysics, volume 529A110-110 (2011/5-1)

GRB 071028B, a burst behind large amounts of dust in an unabsorbed galaxy.

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

Abstract (from CDS):

We report on the discovery and properties of the fading afterglow and underlying host galaxy of GRB071028B, thereby facilitating a detailed comparison between these two. Observations were performed with the Gamma-ray Burst Optical and Near-infrared Detector at the 2.2m telescope on the La Silla Paranal Observatory in Chile. We conducted five observations from 1.9d to 227.2d after the trigger and obtained deep images in the g'r'i'z' and JHKs bands. Based on accurate seven-channel photometry covering the optical to near-infrared wavelength range, we derive a photometric redshift of z=0.94+0.05–0.10 for the unabsorbed host galaxy of GRB071028B. In contrast, we show that the afterglow with an intrinsic extinction of AVSB=(0.70±0.11)mag is moderately absorbed and requires a relatively flat extinction curve. According to the reported Swift/BAT observations, the energetics yield an isotropic energy release of Erestgamma,iso=(1.4+2.4–0.7)1051erg.

Abstract Copyright: ∼

Journal keyword(s): x-rays: bursts - galaxies: starburst - galaxies: photometry - techniques: photometric

Nomenclature: Table 2: [CGK2011] N (Nos 1-5). Figs 1-2, Paragr. 5, Table 3: [CGK2011] A (Nos H, G, D).

Simbad objects: 23

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Number of rows : 23
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 GRB 070802 gB 02 27 35.91 -55 31 39.1           ~ 168 0
3 GRB 070326 gB 02 41 20.8 -66 59 21           ~ 10 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 GRB 070227 gB 08 02 19.310 -46 18 51.30           ~ 28 0
6 GRB 050916 gB 09 03 57.270 -51 25 42.51           ~ 46 0
7 GRB 070406 gB 13 15 51.350 +16 30 46.90 20.54         ~ 50 0
8 GRB 051114A gB 15 05 03.8 +60 09 22           ~ 29 0
9 GRB 051012 gB 18 02 10.950 -52 47 12.61     19.75     ~ 19 0
10 GRB 020813A gB 19 46 41.874 -19 36 04.81           ~ 316 0
11 GRB 060505 gB 22 07 03.440 -27 48 51.89           ~ 286 1
12 GRB 071006 gB 22 21 10.4 -23 08 47           ~ 14 0
13 GRB 071010C gB 22 32 13.0 +66 09 32           ~ 9 0
14 SA 114-750 * 22 41 44.7035499504 +01 12 36.369967860 11.512 11.879 11.916 11.889 11.906 B9 44 0
15 [CGK2011] 5 * 23 36 30.80 -31 36 06.9           ~ 1 0
16 [CGK2011] 4 * 23 36 31.8877783560 -31 38 29.914649628           ~ 1 0
17 [CGK2011] 3 * 23 36 35.05 -31 38 29.8           ~ 1 0
18 [CGK2011] 2 * 23 36 36.54 -31 37 33.9           ~ 1 0
19 [CGK2011] D * 23 36 38.70 -31 37 10.5           ~ 1 0
20 [CGK2011] H G 23 36 38.81 -31 37 13.1           ~ 1 0
21 GRB 071028B gB 23 36 38.83 -31 37 13.3           ~ 26 0
22 [CGK2011] G G 23 36 39.49 -31 37 16.1           ~ 1 0
23 [CGK2011] 1 * 23 36 48.01 -30 36 29.9           ~ 1 0

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