2010A&A...523A..70T


Query : 2010A&A...523A..70T

2010A&A...523A..70T - Astronomy and Astrophysics, volume 523, A70-70 (2010/11-2)

Photometry and spectroscopy of GRB 060526: a detailed study of the afterglow and host galaxy of a z = 3.2 gamma-ray burst.

THOENE C.C., KANN D.A., JOHANNESSON G., SELJ J.H., JAUNSEN A.O., FYNBO J.P.U., AKERLOF C.W., BALIYAN K.S., BARTOLINI C., BIKMAEV I.F., BLOOM J.S., BURENIN R.A., COBB B.E., COVINO S., CURRAN P.A., DAHLE H., FERRERO A., FOLEY S., FRENCH J., FRUCHTER A.S., GANESH S., GRAHAM J.F., GRECO G., GUARNIERI A., HANLON L., HJORTH J., IBRAHIMOV M., ISRAEL G.L., JAKOBSSON P., JELINEK M., JENSEN B.L., JORGENSEN U.G., KHAMITOV I.M., KOCH T.S., LEVAN A.J., MALESANI D., MASETTI N., MEEHAN S., MELADY G., NANNI D., NAERAENEN J., PAKSTIENE E., PAVLINSKY M.N., PERLEY D.A., PICCIONI A., PIZZICHINI G., POZANENKO A., ROMING P.W.A., RUJOPAKARN W., RUMYANTSEV V., RYKOFF E.S., SHARAPOV D., STARR D., SUNYAEV R.A., SWAN H., TANVIR N.R., TERRA F., DE UGARTE POSTIGO A., VREESWIJK P.M., WILSON A.C., YOST S.A. and YUAN F.

Abstract (from CDS):

With this paper we want to investigate the highly variable afterglow light curve and environment of gamma-ray burst (GRB) 060526 at z=3.221. We present one of the largest photometric datasets ever obtained for a GRB afterglow, consisting of multi-color photometric data from the ultraviolet to the near infrared. The data set contains 412 data points in total to which we add additional data from the literature. Furthermore, we present low-resolution high signal-to-noise spectra of the afterglow. The afterglow light curve is modeled with both an analytical model using broken power law fits and with a broad-band numerical model which includes energy injections. The absorption lines detected in the spectra are used to derive column densities using a multi-ion single-component curve-of-growth analysis from which we derive the metallicity of the host of GRB 060526. The temporal behaviour of the afterglow follows a double broken power law with breaks at t=0.090±0.005 and t=2.401±0.061days. It shows deviations from the smooth set of power laws that can be modeled by additional energy injections from the central engine, although some significant microvariability remains. The broadband spectral-energy distribution of the afterglow shows no significant extinction along the line of sight. The metallicity derived from SII and FeII of [S/H]=-0.57±0.25 and [Fe/H]=-1.09±0.24 is relatively high for a galaxy at that redshift but comparable to the metallicity of other GRB hosts at similar redshifts. At the position of the afterglow, no host is detected to F775W(AB)=28.5mag with the HST, implying an absolute magnitude of the host M(1500Å)>-18.3mag which is fainter than most long-duration hosts, although the GRB may be associated with a faint galaxy at a distance of 11kpc.

Abstract Copyright:

Journal keyword(s): gamma rays bursts: individual: GRB 060526 - galaxies: high-redshift - ISM: abundances

Nomenclature: Table 3: [TKJ2010] N (Nos 1-6). Paragr. 4.4: [TKJ2010] Galaxy N=1.

Simbad objects: 62

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Number of rows : 62
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 GRB 041219 gB 00 24 27.7 +62 50 34           ~ 208 1
2 GRB 021004 gB 00 26 54.68 +18 55 41.6           ~ 519 0
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9859 1
4 GRB 041006 gB 00 54 50.17 +01 14 07.0           ~ 188 2
5 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 438 0
6 EQ J005450.8+140509.9 G 00 54 50.88 +14 05 09.9           ~ 7 0
7 GRB 050908 gB 01 21 50.750 -12 57 17.20           ~ 160 0
8 GRB 070721B gB 02 12 32.98 -02 11 39.8           ~ 105 0
9 GRB 061007 gB 03 05 19.510 -50 30 02.50 14.28 14.40 12.95     ~ 272 1
10 GRB 060210 gB 03 50 57.370 +27 01 34.40   20.27       ~ 232 0
11 GRB 080913 gB 04 22 57.90 -25 07 38.6           ~ 177 0
12 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15467 1
13 GRB 061126 gB 05 46 24.460 +64 12 38.49 18.62 18.79 19.20     ~ 157 1
14 GRB 070311 gB 05 50 08.220 +03 22 29.40           ~ 64 0
15 GRB 090328 gB 06 02 39.69 -41 52 55.1           ~ 147 1
16 GRB 000131 gB 06 13 31.08 -51 56 41.7     24.7     ~ 161 1
17 [LDM2003] GRB J061331.1-515642 G 06 13 31.1 -51 56 42           ~ 6 1
18 GRB 080129 gB 07 01 08.13 -07 50 47.8           ~ 69 0
19 GRB 070125 gB 07 51 17.80 +31 09 04.8           ~ 162 0
20 GRB 050505 gB 09 27 03.300 +30 16 23.70     20.74     ~ 176 0
21 GRB 020124 gB 09 32 50.8 -11 31 11           ~ 145 0
22 SN 2003dh SN* 10 44 50.030 +21 31 18.15     16.2     SNIcpec 1141 1
23 [VWR2003] GRB 030323 abs 3.372 G 11 06 09.4 -21 46 13           ~ 13 1
24 GRB 030323 gB 11 06 09.4 -21 46 13           ~ 127 1
25 GRB 011211 gB 11 15 16 -21 56.0           ~ 289 0
26 GRB 030226 gB 11 33 04.9 +25 53 56           ~ 190 0
27 GRB 971214 gB 11 56 26.4 +65 12 01           ~ 434 1
28 [LDM2003] GRB J115626.4+651200 G 11 56 26.55 +65 12 00.7           ~ 19 1
29 GRB 090323 gB 12 42 50.28 +17 03 11.9           ~ 189 1
30 GRB 080607 gB 12 59 47.14 +15 55 09.6           ~ 214 0
31 GRB 050502A gB 13 29 46.250 +42 40 27.50           ~ 58 0
32 GRB 060206 gB 13 31 43.420 +35 03 03.60   19.99 17.09     ~ 290 0
33 GRB 050730 gB 14 08 17.090 -03 46 18.90   20.32 17.68     ~ 288 0
34 GRB 080319B gB 14 31 41.04 +36 18 09.2           ~ 429 0
35 GRB 090205 gB 14 43 40.00 -27 50 51.4           ~ 74 0
36 GRB 990123 gB 15 25 29 +44 45.0     8.95     ~ 968 1
37 [TKJ2010] 4 ? 15 31 14.40 +00 17 49.9     19.78 19.43 18.81 ~ 1 0
38 [TKJ2010] 5 ? 15 31 16.50 +00 17 55.5     20.34 19.96 20.59 ~ 1 0
39 [TKJ2010] 6 ? 15 31 18.30 +00 18 17.7     20.49 19.45 18.23 ~ 1 0
40 GRB 060526 gB 15 31 18.360 +00 17 04.90   18.31 17.16     ~ 242 0
41 [TKJ2010] Galaxy G 15 31 18.43 +00 17 03.9       26.4   ~ 1 1
42 [TKJ2010] 1 ? 15 31 19.60 +00 16 59.5   19.90 19.36 19.02 18.67 ~ 1 0
43 [TKJ2010] 3 ? 15 31 20.90 +00 16 39.1   19.97 19.11 18.55 18.12 ~ 1 0
44 [TKJ2010] 2 ? 15 31 22.70 +00 17 21.2   20.30 19.51 19.09 18.71 ~ 1 0
45 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 330 0
46 GRB 060510B gB 15 56 29.200 +78 34 12.00           ~ 133 0
47 [CBC2007b] GRB 060510B Host G G 15 56 29.607 +78 34 12.42           ~ 2 0
48 GRB 000301C gB 16 20 18.5 +29 26 35           ~ 344 0
49 GRB 050401 gB 16 31 28.84 +02 11 14.5           ~ 308 0
50 GRB 080210 gB 16 45 04.03 +13 49 36.3           ~ 99 0
51 GRB 050721 gB 16 53 44.530 -28 22 51.80     19.63     ~ 58 0
52 GRB 000926 gB 17 04 15 +51 46.0           ~ 346 0
53 GRB 081008 gB 18 39 52.40 -57 25 58.8           ~ 166 0
54 GRB 060111B gB 19 05 42.480 +70 22 33.60     17.55     ~ 80 1
55 GRB 071010A gB 19 12 14.42 -32 24 06.2           ~ 111 0
56 GRB 020813A gB 19 46 41.874 -19 36 04.81           ~ 289 0
57 GRB 071003 gB 20 07 24.50 +10 56 48.8           ~ 144 0
58 GRB 060605 gB 21 28 37.320 -06 03 31.30   20.12 16.53     ~ 173 0
59 GRB 060117 gB 21 51 36.130 -59 58 39.10           ~ 55 0
60 GRB 060607 gB 21 58 50.400 -22 29 46.70 18.49 16.67 15.09     ~ 267 0
61 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 346 0
62 GRB 090926A gB 23 33 36.18 -66 19 25.9           ~ 262 0

    Equat.    Gal    SGal    Ecl

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2021.07.30-17:26:31

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