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M31N 2008-12a - The REMARKABLE RECURRENT NOVA in M31: PANCHROMATIC OBSERVATIONS of the 2015 ERUPTION

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dc.contributor.author Darnley M.
dc.contributor.author Henze M.
dc.contributor.author Bode M.
dc.contributor.author Hachisu I.
dc.contributor.author Hernanz M.
dc.contributor.author Hornoch K.
dc.contributor.author Hounsell R.
dc.contributor.author Kato M.
dc.contributor.author Ness J.
dc.contributor.author Osborne J.
dc.contributor.author Page K.
dc.contributor.author Ribeiro V.
dc.contributor.author Rodríguez-Gil P.
dc.contributor.author Shafter A.
dc.contributor.author Shara M.
dc.contributor.author Steele I.
dc.contributor.author Williams S.
dc.contributor.author Arai A.
dc.contributor.author Arcavi I.
dc.contributor.author Barsukova E.
dc.contributor.author Boumis P.
dc.contributor.author Chen T.
dc.contributor.author Fabrika S.
dc.contributor.author Figueira J.
dc.contributor.author Gao X.
dc.contributor.author Gehrels N.
dc.contributor.author Godon P.
dc.contributor.author Goranskij V.
dc.contributor.author Harman D.
dc.contributor.author Hartmann D.
dc.contributor.author Hosseinzadeh G.
dc.contributor.author Horst J.
dc.contributor.author Itagaki K.
dc.contributor.author José J.
dc.contributor.author Kabashima F.
dc.contributor.author Kaur A.
dc.contributor.author Kawai N.
dc.contributor.author Kennea J.
dc.contributor.author Kiyota S.
dc.contributor.author Kučáková H.
dc.contributor.author Lau K.
dc.contributor.author Maehara H.
dc.contributor.author Naito H.
dc.contributor.author Nakajima K.
dc.contributor.author Nishiyama K.
dc.contributor.author O'Brien T.
dc.contributor.author Quimby R.
dc.contributor.author Sala G.
dc.contributor.author Sano Y.
dc.contributor.author Sion E.
dc.contributor.author Valeev A.
dc.contributor.author Watanabe F.
dc.contributor.author Watanabe M.
dc.contributor.author Williams B.
dc.contributor.author Xu Z.
dc.date.accessioned 2018-09-19T20:06:22Z
dc.date.available 2018-09-19T20:06:22Z
dc.date.issued 2016
dc.identifier.issn 0004-637X
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/142562
dc.description.abstract © 2016. The American Astronomical Society. All rights reserved.The Andromeda Galaxy recurrent nova M31N 2008-12a had been observed in eruption 10 times, including yearly eruptions from 2008 to 2014. With a measured recurrence period of Prec = 351 ± 13 days (we believe the true value to be half of this) and a white dwarf very close to the Chandrasekhar limit, M31N 2008-12a has become the leading pre-explosion supernova type Ia progenitor candidate. Following multi-wavelength follow-up observations of the 2013 and 2014 eruptions, we initiated a campaign to ensure early detection of the predicted 2015 eruption, which triggered ambitious ground- and space-based follow-up programs. In this paper we present the 2015 detection, visible to near-infrared photometry and visible spectroscopy, and ultraviolet and X-ray observations from the Swift observatory. The LCOGT 2 m (Hawaii) discovered the 2015 eruption, estimated to have commenced at August 28.28 ± 0.12 UT. The 2013-2015 eruptions are remarkably similar at all wavelengths. New early spectroscopic observations reveal short-lived emission from material with velocities ∼13,000 km s-1, possibly collimated outflows. Photometric and spectroscopic observations of the eruption provide strong evidence supporting a red giant donor. An apparently stochastic variability during the early supersoft X-ray phase was comparable in amplitude and duration to past eruptions, but the 2013 and 2015 eruptions show evidence of a brief flux dip during this phase. The multi-eruption Swift/XRT spectra show tentative evidence of high-ionization emission lines above a high-temperature continuum. Following Henze et al. (2015a), the updated recurrence period based on all known eruptions is Prec = 174 ± 10 days, and we expect the next eruption of M31N 2008-12a to occur around 2016 mid-September.
dc.relation.ispartofseries Astrophysical Journal
dc.subject galaxies: individual (M31)
dc.subject novae, cataclysmic variables
dc.subject stars: individual (M31N 2008-12a)
dc.subject ultraviolet: stars
dc.subject X-rays: binaries
dc.title M31N 2008-12a - The REMARKABLE RECURRENT NOVA in M31: PANCHROMATIC OBSERVATIONS of the 2015 ERUPTION
dc.type Article
dc.relation.ispartofseries-issue 2
dc.relation.ispartofseries-volume 833
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS0004637X-2016-833-2-SID85007524590


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  • Публикации сотрудников КФУ Scopus [20180]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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