2014ApJ...785..150S

Query : 2014ApJ...785..150S

2014ApJ...785..150S - Astrophys. J., 785, 150 (2014/April-3)

The metallicity and dust content of a redshift 5 gamma-ray burst host galaxy.

SPARRE M., HARTOOG O.E., KRUHLER T., FYNBO J.P.U., WATSON D.J., WIERSEMA K., D'ELIA V., ZAFAR T., AFONSO P.M.J., COVINO S., DE UGARTE POSTIGO A., FLORES H., GOLDONI P., GREINER J., HJORTH J., JAKOBSSON P., KAPER L., KLOSE S., LEVAN A.J., MALESANI D., MILVANG-JENSEN B., NARDINI M., PIRANOMONTE S., SOLLERMAN J., SANCHEZ-RAMIREZ R., SCHULZE S., TANVIR N.R., VERGANI S.D. and WIJERS R.A.M.J.

Abstract (from CDS):

Observations of the afterglows of long gamma-ray bursts (GRBs) allow the study of star-forming galaxies across most of cosmic history. Here we present observations of GRB 111008A, from which we can measure metallicity, chemical abundance patterns, dust-to-metals ratio (DTM), and extinction of the GRB host galaxy at z = 5.0. The host absorption system is a damped Lyα absorber with a very large neutral hydrogen column density of logN(HI)/cm2 = 22.30±0.06 and a metallicity of [S/H] = -1.70±0.10. It is the highest-redshift GRB with such a precise metallicity measurement. The presence of fine-structure lines confirms the z = 5.0 system as the GRB host galaxy and makes this the highest redshift where Fe II fine-structure lines have been detected. The afterglow is mildly reddened with AV= 0.11±0.04 mag, and the host galaxy has a DTM that is consistent with being equal to or lower than typical values in the Local Group.

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Journal keyword(s): dust, extinction - galaxies: high-redshift - gamma-ray burst: individual: GRB 111008A

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11145 1
2 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 469 0
3 GRB 070721B gB 02 12 32.98 -02 11 39.8           ~ 116 0
4 GRB 111008A gB 04 01 48.220 -32 42 34.09           ~ 103 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17428 0
6 GD 71 WD* 05 52 27.6198591816 +15 53 13.228887444 11.675 12.783 13.032 13.169 13.337 DA1.5 385 0
7 GRB 100219A gB 10 16 48.48 -12 34 00.0           ~ 112 0
8 GRB 130606A gB 16 37 35.12 +29 47 46.4           ~ 154 0
9 NAME Local Group GrG ~ ~           ~ 8387 0

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