2014A&A...563A..62D


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST02:52:50

2014A&A...563A..62D - Astronomy and Astrophysics, volume 563A, 62-62 (2014/3-1)

Spectroscopy of the short-hard GRB 130603B. The host galaxy and environment of a compact object merger.

DE UGARTE POSTIGO A., THOENE C.C., ROWLINSON A., GARCIA-BENITO R., LEVAN A.J., GOROSABEL J., GOLDONI P., SCHULZE S., ZAFAR T., WIERSEMA K., SANCHEZ-RAMIREZ R., MELANDRI A., D'AVANZO P., OATES S., D'ELIA V., DE PASQUALE M., KRUEHLER T., VAN DER HORST A.J., XU D., WATSON D., PIRANOMONTE S., VERGANI S.D., MILVANG-JENSEN B., KAPER L., MALESANI D., FYNBO J.P.U., CANO Z., COVINO S., FLORES H., GREISS S., HAMMER F., HARTOOG O.E., HELLMICH S., HEUSER C., HJORTH J., JAKOBSSON P., MOTTOLA S., SPARRE M., SOLLERMAN J., TAGLIAFERRI G., TANVIR N.R., VESTERGAARD M. and WIJERS R.A.M.J.

Abstract (from CDS):

Short duration gamma-ray bursts (SGRBs) are thought to be related to the violent merger of compact objects, such as neutron stars or black holes, which makes them promising sources of gravitational waves. The detection of a ``kilonova''-like signature associated to the Swift-detected GRB130603B has suggested that this event is the result of a compact object merger. Our knowledge on SGRB has been, until now, mostly based on the absence of supernova signatures and the analysis of the host galaxies to which they cannot always be securely associated. Further progress has been significantly hampered by the faintness and rapid fading of their optical counterparts (afterglows), which has so far precluded spectroscopy of such events. Afterglow spectroscopy is the key tool to firmly determine the distance at which the burst was produced, crucial to understand its physics, and study its local environment. Here we present the first spectra of a prototypical SGRB afterglow in which both absorption and emission features are clearly detected. Together with multi-wavelength photometry we study the host and environment of GRB130603B. From these spectra we determine the redshift of the burst to be z=0.3565±0.0002, measure rich dynamics both in absorption and emission, and a substantial line of sight extinction of AV=0.86±0.15mag. The GRB was located at the edge of a disrupted arm of a moderately star forming galaxy with near-solar metallicity. Unlike for most long GRBs (LGRBs), NHX/AV is consistent with the Galactic ratio, indicating that the explosion site differs from those found in LGRBs. The merger is not associated with the most star-forming region of the galaxy; however, it did occur in a dense region, implying a rapid merger or a low natal kick velocity for the compact object binary.

Abstract Copyright:

Journal keyword(s): gamma-ray burst: individual: GRB 130603B - galaxies: distances and redshifts - galaxies: stellar content - galaxies: spiral

CDS comments: Paragraph 1. GRB 051225A is a misprint for GRB 051221A. Table A.1 Comparison stars not in SIMBAD.

Simbad objects: 19

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Number of rows : 19

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 100117A gB 00 45 04.56 -01 35 41.7           ~ 109 0
2 GRB 111117A gB 00 50 46.220 +23 00 39.22           ~ 81 0
3 GRB 070724A gB 01 51 14.08 -18 35 38.8           ~ 145 0
4 GRB 100206A gB 03 08 38.94 +13 09 25.5           ~ 103 0
5 GRB 101219A gB 04 58 20.43 -02 32 23.0           ~ 99 0
6 GRB 130603B gB 11 28 48.16 +17 04 18.2           ~ 265 0
7 GRB 050509B gB 12 36 18.000 +29 01 24.00           ~ 278 1
8 GRB 090426 gB 12 36 19.49 +32 59 05.5           ~ 157 0
9 GRB 070809 gB 13 35 04.2 -22 07 07           ~ 112 0
10 GRB 060801 gB 14 12 01.290 +16 58 54.00           ~ 135 0
11 GRB 120804A gB 15 35 47.55 -28 46 56.9           ~ 57 0
12 GRB 070707 gB 17 50 58.49 -68 55 27.0           ~ 52 1
13 GRB 080905A gB 19 10 39.10 -18 51 55.4           ~ 135 0
14 GRB 051221 gB 21 54 48.626 +16 53 27.16 19.49         ~ 307 1
15 GRB 061201 gB 22 08 32.060 -74 34 47.90           ~ 155 0
16 GRB 090510 gB 22 14 12.60 -26 35 51.1           ~ 408 1
17 GRB 020819 gB 23 00 12 -43 00.7           ~ 120 1
18 GRB 050709 gB 23 01 26.960 -38 58 39.50           ~ 259 1
19 GRB 100816A gB 23 26 57.56 +26 34 42.6           ~ 118 0

    Equat.    Gal    SGal    Ecl

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2020.07.10-02:52:50

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