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M31N 2008-12a - the remarkable recurrent nova in M31:Pan-Chromatic observations of the 2015 eruption
- Source :
- UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC), SCOPUS0004637X-2016-833-2-SID85007524590, Darnley, M J, Henze, M, Bode, M F, Hachisu, I, Hernanz, M, Hornoch, K, Hounsell, R, Kato, M, Ness, J U, Osborne, J P, Page, K L, Ribeiro, V A R M, Rodríguez-Gil, P, Shafter, A W, Shara, M M, Steele, I A, Williams, S C, Arai, A, Arcavi, I, Barsukova, E A, Boumis, P, Chen, T, Fabrika, S, Figueira, J, Gao, X, Gehrels, N, Godon, P, Goranskij, V P, Harman, D J, Hartmann, D H, Hosseinzadeh, G, Horst, J C, Itagaki, K, José, J, Kabashima, F, Kaur, A, Kawai, N, Kennea, J A, Kiyota, S, Kučáková, H, Lau, K M, Maehara, H, Naito, H, Nakajima, K, Nishiyama, K, O'Brien, T J, Quimby, R, Sala, G, Sano, Y, Sion, E M, Valeev, A F, Watanabe, F, Watanabe, M, Williams, B F & Xu, Z 2016, ' M31N 2008-12a-The REMARKABLE RECURRENT NOVA in M31 : PANCHROMATIC OBSERVATIONS of the 2015 ERUPTION ', Astrophysical Journal, vol. 833, no. 2, 149 . https://doi.org/10.3847/1538-4357/833/2/149, The Astrophysical Journal, 833, 2, pp. 1-38, Recercat. Dipósit de la Recerca de Catalunya, instname, The Astrophysical Journal, 833, 1-38, NASA Astrophysics Data System
- Publication Year :
- 2016
-
Abstract
- The Andromeda Galaxy recurrent nova M31N 2008-12a had been observed in eruption ten times, including yearly eruptions from 2008-2014. With a measured recurrence period of $P_\mathrm{rec}=351\pm13$ 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 2m (Hawaii) discovered the 2015 eruption, estimated to have commenced at Aug. $28.28\pm0.12$ UT. The 2013-2015 eruptions are remarkably similar at all wavelengths. New early spectroscopic observations reveal short-lived emission from material with velocities $\sim13000$ 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 super-soft 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 $P_\mathrm{rec}=174\pm10$ d, and we expect the next eruption of M31N 2008-12a to occur around mid-Sep. 2016.<br />46 pages, 19 figures, 14 tables, accepted for publication in ApJ (accepted version, minor changes made during the refereeing process)
- Subjects :
- Andromeda Galaxy
Red giant
Astronomy
education
FOS: Physical sciences
stars [ultraviolet]
Astrophysics
individual (M31) [galaxies]
01 natural sciences
Photometry (optics)
Observatory
0103 physical sciences
novae, cataclysmic variables
Emission spectrum
010303 astronomy & astrophysics
Chandrasekhar limit
Solar and Stellar Astrophysics (astro-ph.SR)
QB
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
010308 nuclear & particles physics
White dwarf
Astronomy and Astrophysics
Stars
Estels
individual (M31N 2008-12a) [stars]
Supernova
Astrophysics - Solar and Stellar Astrophysics
13. Climate action
Space and Planetary Science
Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
binaries [X-rays]
Astrophysics - High Energy Astrophysical Phenomena
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X
- Database :
- OpenAIRE
- Journal :
- UPCommons. Portal del coneixement obert de la UPC, Universitat Politècnica de Catalunya (UPC), SCOPUS0004637X-2016-833-2-SID85007524590, Darnley, M J, Henze, M, Bode, M F, Hachisu, I, Hernanz, M, Hornoch, K, Hounsell, R, Kato, M, Ness, J U, Osborne, J P, Page, K L, Ribeiro, V A R M, Rodríguez-Gil, P, Shafter, A W, Shara, M M, Steele, I A, Williams, S C, Arai, A, Arcavi, I, Barsukova, E A, Boumis, P, Chen, T, Fabrika, S, Figueira, J, Gao, X, Gehrels, N, Godon, P, Goranskij, V P, Harman, D J, Hartmann, D H, Hosseinzadeh, G, Horst, J C, Itagaki, K, José, J, Kabashima, F, Kaur, A, Kawai, N, Kennea, J A, Kiyota, S, Kučáková, H, Lau, K M, Maehara, H, Naito, H, Nakajima, K, Nishiyama, K, O'Brien, T J, Quimby, R, Sala, G, Sano, Y, Sion, E M, Valeev, A F, Watanabe, F, Watanabe, M, Williams, B F & Xu, Z 2016, ' M31N 2008-12a-The REMARKABLE RECURRENT NOVA in M31 : PANCHROMATIC OBSERVATIONS of the 2015 ERUPTION ', Astrophysical Journal, vol. 833, no. 2, 149 . https://doi.org/10.3847/1538-4357/833/2/149, The Astrophysical Journal, 833, 2, pp. 1-38, Recercat. Dipósit de la Recerca de Catalunya, instname, The Astrophysical Journal, 833, 1-38, NASA Astrophysics Data System
- Accession number :
- edsair.doi.dedup.....8e50a254b58aabe93dd2a543a78625c8