Fermi establishes classical novae as a distinct class of gamma-ray sources
Abstract
A classical nova results from runaway thermonuclear explosions on the surface of a white dwarf that accretes matter from a low-mass main-sequence stellar companion. In 2012 and 2013, three novae were detected in γ rays and stood in contrast to the first γ-ray detected nova V407 Cygni 2010, which belongs to a rare class of symbiotic binary systems. Despite likely differences in the compositions and masses of their white dwarf progenitors, the three classical novae are similarly characterized as soft spectrum transient γ-ray sources detected over 2-3 week durations. The γ-ray detections point to unexpected high-energy particle acceleration processes linked to the mass ejection from thermonuclear explosions in an unanticipated class of Galactic γ-ray sources.
- Authors:
-
- Naval Research Lab. (NRL), Washington, DC (United States); et al.
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- The Fermi-LAT Collaboration
- OSTI Identifier:
- 1356459
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Science
- Additional Journal Information:
- Journal Volume: 345; Journal Issue: 6196; Journal ID: ISSN 0036-8075
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS
Citation Formats
Cheung, C. C. Fermi establishes classical novae as a distinct class of gamma-ray sources. United States: N. p., 2014.
Web. doi:10.1126/science.1253947.
Cheung, C. C. Fermi establishes classical novae as a distinct class of gamma-ray sources. United States. https://doi.org/10.1126/science.1253947
Cheung, C. C. Thu .
"Fermi establishes classical novae as a distinct class of gamma-ray sources". United States. https://doi.org/10.1126/science.1253947. https://www.osti.gov/servlets/purl/1356459.
@article{osti_1356459,
title = {Fermi establishes classical novae as a distinct class of gamma-ray sources},
author = {Cheung, C. C.},
abstractNote = {A classical nova results from runaway thermonuclear explosions on the surface of a white dwarf that accretes matter from a low-mass main-sequence stellar companion. In 2012 and 2013, three novae were detected in γ rays and stood in contrast to the first γ-ray detected nova V407 Cygni 2010, which belongs to a rare class of symbiotic binary systems. Despite likely differences in the compositions and masses of their white dwarf progenitors, the three classical novae are similarly characterized as soft spectrum transient γ-ray sources detected over 2-3 week durations. The γ-ray detections point to unexpected high-energy particle acceleration processes linked to the mass ejection from thermonuclear explosions in an unanticipated class of Galactic γ-ray sources.},
doi = {10.1126/science.1253947},
journal = {Science},
number = 6196,
volume = 345,
place = {United States},
year = {Thu Jul 31 00:00:00 EDT 2014},
month = {Thu Jul 31 00:00:00 EDT 2014}
}
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