Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-30T11:45:29.238Z Has data issue: false hasContentIssue false
  • English
  • Français

Identification of a Local Sample of Gamma-Ray Bursts Consistent with a Magnetar Giant Flare Origin

Published online by Cambridge University Press:  27 February 2023

Michela Negro Open the ORCID record for Michela Negro [Opens in a new window]  and
Eric Burns
Michela Negro
Affiliation:
University of Maryland, Baltimore County, Baltimore, MD 21250, USA NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA CRESST, NASA/GSFC, Greenbelt, MD 20771, US email: mnegro1@umbc.edu
Eric Burns
Affiliation:
Louisiana State University: Baton Rouge, LA, US email: eric.burns@lsu.edu
Get access Rights & Permissions [Opens in a new window]

Abstract

Triggered by the MGF detected from the Sculptor galaxy on April 2020, the study described in this proceeding reports the unambiguous identification of a distinct population of 4 local (< 5 Mpc) short GRBs, whose rise time and isotropic energy release are independently inconsistent with the larger short GRB population at >99.9% confidence. These properties, the host galaxies, and non-detection in gravitational waves all point to an extragalactic MGF origin. The inferred volumetric rates for events above 4 × 1044 erg of $$R{\rm{ = }}3.8_{ - 3.1}^{ + 4.0} \times {10^5}Gp{c^{ - 3}}y{r^{ - 1}}$$. These rates imply that some magnetars produce multiple MGFs, providing a source of repeating GRBs. The rates and host galaxies favor common core-collapse supernova as key progenitors of magnetars.

Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S363: Neutron Star Astrophysics at the Crossroads: Magnetars and the Multimessenger Revolution , June 2020 , pp. 284 - 287
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ajello, M. et al. Fermi-LAT Collaboration. Nature Astronomy, vol 5, page 385, 2021.Google Scholar
Burns, E. et al., ApJL, 907(2):L28, 2021 CrossRefGoogle Scholar
Evans, W. et al., Astrophys. J., 237, L7, 1980.CrossRefGoogle Scholar
Hurley, K., Cline, T., Mazets, E., et al., Nature, 397, 41, 1999a.CrossRefGoogle Scholar
Hurley, K., Boggs, S., Smith, D., et al., Nature, 434, 1098, 2005.CrossRefGoogle Scholar
Kaspi, V. M. et al., ARA&A, 55:261-301, 2017.CrossRefGoogle Scholar
Li, W. and Chornock, R. et al., Mon. Not. R. Astron. Soc., 412, 1473–1507, 2011.CrossRefGoogle Scholar
Martinez-Castellanos, I., et al., 2021, (ApJ submitted), Pre-print: arXiv:2111.09209.Google Scholar
Mazets, E. P., Aptekar, R. L., Cline, T. L., et al., Astrophys. J., 680, 545, 2008.CrossRefGoogle Scholar
Ofek, E. O., Kulkarni, S., Nakar, E., et al., Astrophys J., 652, 507, 2006.CrossRefGoogle Scholar
Ofek, E. O. 2007, Astrophys. J., 659, 339 CrossRefGoogle Scholar
Popov, S. B., Stern, B., Mon. Not. R. Astron. Soc., 365, 885, 2006.CrossRefGoogle Scholar
Roberts, O. J. et al., Nature, 589(7841):207–210, 2021.Google Scholar
Svinkin, D. et al., Nature, 589(7841): 211–213, 2021.Google Scholar
Svinkin, D. et al., Mon. Not. R. Astron. Soc., 447, 1028, 2015.https://science.nasa.gov/astrophysics/programs/astrophysics-pioneers Google Scholar