Published November 2014 | Version v1
Journal article Metadata-only

Characteristics of double gamma-ray bursts

Creators

  • 1. State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing (China)
  • 2. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming (China)
  • 3. Department of Astronomy and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen (China)
  • 4. Department of Astronomy and Astrophysics and Institute for Gravitation and the Cosmos, Pennsylvania State University, University Park (United States)
  • 5. College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang (China)
  • 6. College of Science, Guilin University of Technology, Guilin (China)

Description

Double gamma-ray bursts (DGRBs) have two well-separated sub-bursts in the main prompt emission and the typical time interval between them is in the hundreds of seconds. Among DGRBs, gamma-ray bursts (DGRBs) 110801A and 120716A are the ones with known redshifts. However, unlike GRB 110801A, we show that the two sub-bursts of GRB 120716A is severally similar to the short- and long-duration GRBs, thus it is difficult to explain the origin of GRB 120716A by the popular models on the central engine of GRBs. We suggest that some mechanisms of x-ray flares in GRBs, i.e., a post-merger millisecond pulsars or the jet precession in a black hole hyperaccretion system may produce the DGRB. (authors)

Additional details

Identifiers

DOI
10.1088/0256-307X/31/11/119801;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
31
Journal Issue
11
Journal Page Range
[3 p.]
ISSN
0256-307X

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
51120591
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
BLACK HOLES; COSMIC GAMMA BURSTS; EMISSION; JETS; ORIGIN; PRECESSION; PULSARS; RED SHIFT; X RADIATION
Descriptors DEC
COSMIC RADIATION; COSMIC RADIO SOURCES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; PRIMARY COSMIC RADIATION; RADIATIONS

Optional Information

Notes
2 figs., 31 refs.; http://dx.doi.org/10.1088/0256-307X/31/11/119801