Unusual central engine activity in the double burst GRB 110709B

Bin Bin Zhang; David N. Burrows; Bing Zhang; Peter Mészáros; Xiang Yu Wang; Giulia Stratta; Valerio D'Elia; Dmitry Frederiks; Sergey Golenetskii; Jay R. Cummings; Jay P. Norris; Abraham D. Falcone; Scott D. Barthelmy; Neil Gehrels

doi:10.1088/0004-637X/748/2/132

Unusual central engine activity in the double burst GRB 110709B

Bin Bin Zhang
, David N. Burrows
, Bing Zhang
, Peter Mészáros
, Xiang Yu Wang
, Giulia Stratta
, Valerio D'Elia
, Dmitry Frederiks
, Sergey Golenetskii
, Jay R. Cummings
, Jay P. Norris
, Abraham D. Falcone
, Scott D. Barthelmy
, Neil Gehrels

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

The double burst, GRB 110709B, triggered the Swift/Burst Alert Telescope (BAT) twice at 21:32:39 UT and 21:43:45 UT, respectively, on 2011 July 9. This is the first time we observed a gamma-ray burst (GRB) with two BAT triggers. In this paper, we present simultaneous Swift and Konus-WIND observations of this unusual GRB and its afterglow. If the two events originated from the same physical progenitor, their different time-dependent spectral evolution suggests they must belong to different episodes of the central engine, which may be a magnetar-to-BH accretion system.

Original language	English (US)
Article number	132
Journal	Astrophysical Journal
Volume	748
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/748/2/132
State	Published - Apr 1 2012

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/748/2/132

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title = "Unusual central engine activity in the double burst GRB 110709B",

abstract = "The double burst, GRB 110709B, triggered the Swift/Burst Alert Telescope (BAT) twice at 21:32:39 UT and 21:43:45 UT, respectively, on 2011 July 9. This is the first time we observed a gamma-ray burst (GRB) with two BAT triggers. In this paper, we present simultaneous Swift and Konus-WIND observations of this unusual GRB and its afterglow. If the two events originated from the same physical progenitor, their different time-dependent spectral evolution suggests they must belong to different episodes of the central engine, which may be a magnetar-to-BH accretion system.",

author = "Zhang, \{Bin Bin\} and Burrows, \{David N.\} and Bing Zhang and Peter M{\'e}sz{\'a}ros and Wang, \{Xiang Yu\} and Giulia Stratta and Valerio D'Elia and Dmitry Frederiks and Sergey Golenetskii and Cummings, \{Jay R.\} and Norris, \{Jay P.\} and Falcone, \{Abraham D.\} and Barthelmy, \{Scott D.\} and Neil Gehrels",

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doi = "10.1088/0004-637X/748/2/132",

language = "English (US)",

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journal = "Astrophysical Journal",

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T1 - Unusual central engine activity in the double burst GRB 110709B

AU - Zhang, Bin Bin

AU - Burrows, David N.

AU - Zhang, Bing

AU - Mészáros, Peter

AU - Wang, Xiang Yu

AU - Stratta, Giulia

AU - D'Elia, Valerio

AU - Frederiks, Dmitry

AU - Golenetskii, Sergey

AU - Cummings, Jay R.

AU - Norris, Jay P.

AU - Falcone, Abraham D.

AU - Barthelmy, Scott D.

AU - Gehrels, Neil

PY - 2012/4/1

Y1 - 2012/4/1

N2 - The double burst, GRB 110709B, triggered the Swift/Burst Alert Telescope (BAT) twice at 21:32:39 UT and 21:43:45 UT, respectively, on 2011 July 9. This is the first time we observed a gamma-ray burst (GRB) with two BAT triggers. In this paper, we present simultaneous Swift and Konus-WIND observations of this unusual GRB and its afterglow. If the two events originated from the same physical progenitor, their different time-dependent spectral evolution suggests they must belong to different episodes of the central engine, which may be a magnetar-to-BH accretion system.

AB - The double burst, GRB 110709B, triggered the Swift/Burst Alert Telescope (BAT) twice at 21:32:39 UT and 21:43:45 UT, respectively, on 2011 July 9. This is the first time we observed a gamma-ray burst (GRB) with two BAT triggers. In this paper, we present simultaneous Swift and Konus-WIND observations of this unusual GRB and its afterglow. If the two events originated from the same physical progenitor, their different time-dependent spectral evolution suggests they must belong to different episodes of the central engine, which may be a magnetar-to-BH accretion system.

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UR - https://www.scopus.com/pages/publications/84863368361#tab=citedBy

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DO - 10.1088/0004-637X/748/2/132

M3 - Article

AN - SCOPUS:84863368361

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VL - 748

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

M1 - 132

ER -

Unusual central engine activity in the double burst GRB 110709B

Abstract

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