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Title

The recurrent nova RS Oph: A possible scenario for type Ia supernovae

AuthorsHernanz, Margarita CSIC ORCID ; José, Jordi
KeywordsBinaries
Close
Symbiotic
Novae
Cataclysmic variables
Stars
Individual (RS Oph)
Supernovae
General
Nucleosynthesis
Gamma-ray astronomy
Issue DateOct-2008
PublisherElsevier
CitationNew Astronomy Reviews 52(7-10): 386-389 (2008)
AbstractThe recurrent nova RS Oph experienced an outburst in 2006, 21 years after its previous explosion in 1985, as expected. It was observed at almost all wavelengths, and important information about its properties is still being extracted. We present theoretical models of the explosion of this fascinating object, which indicate that the mass of the accreting white dwarf should be very close to the Chandrasekhar mass, to allow for such a short recurrence period. In addition, since models suggest that this nova ejects less mass than it accretes, it is an excellent candidate for a thermonuclear supernova explosion, in about 105–107 years from now. We also analyze the emission of soft gamma-rays by RS Oph detected with the BAT instrument onboard Swift, and with the PCA onboard RXTE. We rule out that this emission has its origin in radioactive decays in the expanding nova envelope.
Description4 pages, 1 figure, 1 table.-- Pre-print archive.
Publisher version (URL)http://dx.doi.org/10.1016/j.newar.2008.06.017
URIhttp://hdl.handle.net/10261/20579
DOI10.1016/j.newar.2008.06.017
ISSN1387-6473
Appears in Collections:(ICE) Artículos

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