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A remarkable recurrent nova in M 31: The predicted 2014 outburst in X-rays with Swift
dc.contributor.author | Henze, Martin |
dc.contributor.author | Ness, J. |
dc.contributor.author | Darnley, M. J. |
dc.contributor.author | Bode, M. F. |
dc.contributor.author | Williams, S. C. |
dc.contributor.author | Shafter, A. W. |
dc.contributor.author | Sala Cladellas, Glòria |
dc.contributor.author | Kato, M. |
dc.contributor.author | Hachisu, I. |
dc.contributor.author | Hernanz Carbó, Margarita |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2015-12-16T11:50:48Z |
dc.date.available | 2015-12-16T11:50:48Z |
dc.date.issued | 2015-08-01 |
dc.identifier.citation | Henze, M., Ness, J., Darnley, M., Bode, M., Williams, S., Shafter, A., Sala, G., Kato, M., Hachisu, I., Hernanz, M. A remarkable recurrent nova in M 31: The predicted 2014 outburst in X-rays with Swift. "Astronomy and astrophysics", 01 Agost 2015, vol. 580, núm. A46. |
dc.identifier.issn | 0004-6361 |
dc.identifier.uri | http://hdl.handle.net/2117/80800 |
dc.description.abstract | Context. The M 31 nova M31N 2008-12a was recently found to be a recurrent nova (RN) with a recurrence time of about one year. This is by far the fastest recurrence time scale of any known RN.; Aims. Our optical monitoring programme detected the predicted 2014 outburst of M31N 2008-12a in early October. We immediately initiated an X-ray/UV monitoring campaign with Swift to study the multiwavelength evolution of the outburst.; Methods. We monitored M31N 2008-12a with daily Swift observations for 20 days after discovery, covering the entire supersoft X-ray source (SSS) phase.; Results. We detected SSS emission around day six after outburst. The SSS state lasted for approximately two weeks until about day 19. M31N 2008-12a was a bright X-ray source with a high blackbody temperature.; Conclusions. The X-ray properties of this outburst are very similar to the 2013 eruption. Combined X-ray spectra show a fast rise and decline of the effective blackbody temperature. The short-term X-ray light curve showed strong, aperiodic variability which decreased significantly after about day 14. Overall, the X-ray properties of M31N 2008-12a are consistent with the average population properties of M 31 novae. The optical and X-ray light curves can be scaled uniformly to show similar time scales to those of the Galactic RNe U Sco or RS Oph. The SSS evolution time scales and effective temperatures are consistent with a high-mass WD. We predict the next outburst of M31N 2008-12a to occur in Oct.-Dec. 2015. |
dc.language.iso | eng |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física::Astronomia i astrofísica |
dc.subject.lcsh | Astrophysics |
dc.subject.other | galaxies: individual: M 31 |
dc.subject.other | novae |
dc.subject.other | cataclysmic variables |
dc.subject.other | X-rays: binaries |
dc.subject.other | stars: individual: M31N 2008-12a |
dc.subject.other | HYDROGEN-BURNING TURNOFF |
dc.subject.other | RS OPHIUCHI 2006 |
dc.subject.other | CLASSICAL NOVAE |
dc.subject.other | CENTRAL REGION |
dc.subject.other | SPECTRAL-ANALYSIS |
dc.subject.other | OPTICAL NOVAE |
dc.subject.other | LIGHT-CURVE |
dc.subject.other | SPACED DATA |
dc.subject.other | PHASE |
dc.subject.other | TELESCOPE |
dc.title | A remarkable recurrent nova in M 31: The predicted 2014 outburst in X-rays with Swift |
dc.type | Article |
dc.subject.lemac | Astrofísica |
dc.contributor.group | Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica |
dc.identifier.doi | 10.1051/0004-6361/201526028 |
dc.rights.access | Open Access |
local.identifier.drac | 17072940 |
dc.description.version | Postprint (published version) |
local.citation.author | Henze, M.; Ness, J.; Darnley, M.; Bode, M.; Williams, S.; Shafter, A.; Sala, G.; Kato, M.; Hachisu, I.; Hernanz, M. |
local.citation.publicationName | Astronomy and astrophysics |
local.citation.volume | 580 |
local.citation.number | A46 |
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