A remarkable recurrent nova in M 31: The optical observations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F14%3A00429426" target="_blank" >RIV/67985815:_____/14:00429426 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201423411" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201423411</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201423411" target="_blank" >10.1051/0004-6361/201423411</a>
Alternative languages
Result language
angličtina
Original language name
A remarkable recurrent nova in M 31: The optical observations
Original language description
In this Letter we address the optical lightcurve and progenitor system of M 31N 2008-12a. Photometry of the 2013 eruption, combined with three previous eruptions, enabled construction of a template lightcurve of a very fast nova (t2(V)=4 days). The archival data allowed recovery of the progenitor system in optical and near-UV data, indicating a red-giant secondary with bright accretion disk, or alternatively a system with a sub-giant secondary but dominated by a disk. The eruptions of M 31N 2008-12a, and a number of historic X-ray detections, indicate a unique system with a recurrence timescale of 1 yr. This implies the presence of a very high-mass white dwarf and a high accretion rate. The recovered progenitor system is consistent with such an elevated rate of accretion. We encourage additional observations, especially towards the end of 2014.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LG12001" target="_blank" >LG12001: Study of properties of asteroids and stellar systems with photometric observations with the Danish 1.54-m telescope at the European Southern Observatory</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
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Volume of the periodical
563
Issue of the periodical within the volume
March
Country of publishing house
FR - FRANCE
Number of pages
4
Pages from-to
"L9/1"-"L9/4"
UT code for WoS article
000333798000154
EID of the result in the Scopus database
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