M31N 2008-12a - the remarkable recurrent nova in M31:Pan-Chromatic observations of the 2015 eruption
| Autor: | Makoto Watanabe, Pablo Rodríguez-Gil, Iair Arcavi, A. W. Shafter, Amanpreet Kaur, P. Boumis, Iain A. Steele, N. Gehrels, J. U. Ness, F. Kabashima, K. Nishiyama, Izumi Hachisu, J. A. Kennea, Edward M. Sion, Tim O'Brien, M. F. Bode, Hiroyuki Maehara, B. F. Williams, K. Nakajima, M. J. Darnley, N. Kawai, Kamil Hornoch, X. Gao, Michael M. Shara, K. L. Page, Steven Williams, H. Naito, Valério A. R. M. Ribeiro, Griffin Hosseinzadeh, Z. Xu, P. Godon, Y. Sano, J. Chuck Horst, J. P. Osborne, V. P. Goranskij, E. A. Barsukova, D. J. Harman, K. Itagaki, A. F. Valeev, Martin Henze, R. M. Quimby, Rebekah Hounsell, Hana Kučáková, Mariko Kato, D. H. Hartmann, J. Figueira, Gloria Sala, Akira Arai, Tianran Chen, F. Watanabe, Jordi José, K. M. Lau, M. Hernanz, S. Kiyota, S. N. Fabrika |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
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 |
| Zdroj: | 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 |
| ISSN: | 0004-637X |
| DOI: | 10.3847/1538-4357/833/2/149 |
| Popis: | 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. 46 pages, 19 figures, 14 tables, accepted for publication in ApJ (accepted version, minor changes made during the refereeing process) |
| Databáze: | OpenAIRE |
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