2014A&A...563A...6G


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST00:53:13

2014A&A...563A...6G - Astronomy and Astrophysics, volume 563A, 6-6 (2014/3-1)

A search for lines in the bright X-ray afterglow of GRB 120711A.

GIULIANI A. and MEREGHETTI S.

Abstract (from CDS):

Gamma-ray burst (GRB) 120711A, discovered and rapidly localized by the INTEGRAL satellite, attracted particular interest due to its high γ-ray fluence and very bright X-ray afterglow and due to the detection of a prompt optical transient and long-lasting emission at GeV energies. A follow-up observation carried out with the XMM-Newton satellite has provided an X-ray spectrum in the 0.3-10keV with unprecedented statistics for a GRB afterglow that is 20h after the burst. The spectrum is well fit by a power-law with photon index 1.87±0.01, modified by absorption in our Galaxy and at z=1.4 in the GRB host. A Galactic absorption consistent with that estimated from neutral hydrogen observations is obtained only with a host metallicity lower than 5% of the solar value. We report the results of a sensitive search for emission and absorption lines using the matched filter smoothing method. No statistically significant lines were found. The upper limits on the equivalent width of emission lines, derived through Monte Carlo simulations, are a few tens of eV with a factor ∼10 lower than that of the possible lines reported in the literature for other bursts.

Abstract Copyright:

Journal keyword(s): X-rays: bursts

Simbad objects: 11

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Number of rows : 11

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 010220 gB 02 36 59.0 +61 46 00           ~ 40 0
2 GRB 030227 gB 04 57 32.2 +20 29 54           ~ 71 0
3 GRB 991216 gB 05 09 31.2983 +11 17 07.262           ~ 406 1
4 GRB 120711A gB 06 18 42.839 -70 59 56.78           ~ 72 0
5 GRB 970508 gB 06 53 49.2 +79 16 19           ~ 840 1
6 GRB 001025 gB 08 36.6 -13 04           ~ 46 1
7 GRB 011211 gB 11 15 16 -21 56.0           ~ 285 1
8 GRB 040106 gB 11 52 12.3 -46 47 16           ~ 34 0
9 GRB 970828 gB 18 08 31.6 +59 18 51           ~ 335 1
10 GRB 000214 gB 18 54 27.0 -66 27 30           ~ 89 0
11 GRB 020813A gB 19 46 41.874 -19 36 04.81           ~ 285 1

    Equat.    Gal    SGal    Ecl

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2020.07.10-00:53:13

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