Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/18730 |
Resumo: | The recurrent nova M31N 2008-12a experiences annual eruptions, contains a near-Chandrasekhar-mass white dwarf, and has the largest mass accretion rate in any nova system. In this paper, we present Hubble Space Telescope (HST) WFC3/UVIS photometry of the late decline of the 2015 eruption. We couple these new data with archival HST observations of the quiescent system and Keck spectroscopy of the 2014 eruption. The late-time photometry reveals a rapid decline to a minimum luminosity state, before a possible recovery/rebrightening in the run up to the next eruption. Comparison with accretion disk models supports the survival of the accretion disk during the eruptions, and uncovers a quiescent disk mass accretion rate of the order of ${10}^{-6}\,{M}_{\odot }\,{\mathrm{yr}}^{-1}$, which may rise beyond ${10}^{-5}\,{M}_{\odot }\,{\mathrm{yr}}^{-1}$ during the super-soft source phase—both of which could be problematic for a number of well-established nova eruption models. Such large accretion rates, close to the Eddington limit, might be expected to be accompanied by additional mass loss from the disk through a wind and even through collimated outflows. The archival HST observations, combined with the disk modeling, provide the first constraints on the mass donor: ${L}_{\mathrm{donor}}={103}_{-11}^{+12}\,{L}_{\odot },{R}_{\mathrm{donor}}={14.14}_{-0.47}^{+0.46}\,{R}_{\odot }$, and ${T}_{\mathrm{eff},\mathrm{donor}}=4890\pm 110$ K, which may be consistent with an irradiated M31 red-clump star. Such a donor would require a system orbital period $\gtrsim 5$ days. Our updated analysis predicts that the M31N 2008-12a WD could reach the Chandrasekhar mass in $\lt 20$ kyr. |
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Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 EruptionAccretion, accretion disksNovae, cataclysmic variablesGalaxies: individual (M31)Stars: individual (M31N 2008-12a)Ultraviolet: starsThe recurrent nova M31N 2008-12a experiences annual eruptions, contains a near-Chandrasekhar-mass white dwarf, and has the largest mass accretion rate in any nova system. In this paper, we present Hubble Space Telescope (HST) WFC3/UVIS photometry of the late decline of the 2015 eruption. We couple these new data with archival HST observations of the quiescent system and Keck spectroscopy of the 2014 eruption. The late-time photometry reveals a rapid decline to a minimum luminosity state, before a possible recovery/rebrightening in the run up to the next eruption. Comparison with accretion disk models supports the survival of the accretion disk during the eruptions, and uncovers a quiescent disk mass accretion rate of the order of ${10}^{-6}\,{M}_{\odot }\,{\mathrm{yr}}^{-1}$, which may rise beyond ${10}^{-5}\,{M}_{\odot }\,{\mathrm{yr}}^{-1}$ during the super-soft source phase—both of which could be problematic for a number of well-established nova eruption models. Such large accretion rates, close to the Eddington limit, might be expected to be accompanied by additional mass loss from the disk through a wind and even through collimated outflows. The archival HST observations, combined with the disk modeling, provide the first constraints on the mass donor: ${L}_{\mathrm{donor}}={103}_{-11}^{+12}\,{L}_{\odot },{R}_{\mathrm{donor}}={14.14}_{-0.47}^{+0.46}\,{R}_{\odot }$, and ${T}_{\mathrm{eff},\mathrm{donor}}=4890\pm 110$ K, which may be consistent with an irradiated M31 red-clump star. Such a donor would require a system orbital period $\gtrsim 5$ days. Our updated analysis predicts that the M31N 2008-12a WD could reach the Chandrasekhar mass in $\lt 20$ kyr.American Astronomical Society2017-11-07T11:28:07Z2017-11-06T00:00:00Z2017-11-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/18730eng0004-637X10.3847/1538-4357/aa9062Darnley, M. J.Hounsell, R.Godon, P.Perley, D. A.Henze, M.Kuin, N. P. M.Williams, B. F.Williams, S. C.Bode, M. F.Harman, D. J.Hornoch, K.Link, M.Ness, J.-U.Ribeiro, V. A. R. M.Sion, E. M.Shafter, A. W.Shara, M. M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:36:11Zoai:ria.ua.pt:10773/18730Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:53:37.138824Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
title |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
spellingShingle |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption Darnley, M. J. Accretion, accretion disks Novae, cataclysmic variables Galaxies: individual (M31) Stars: individual (M31N 2008-12a) Ultraviolet: stars |
title_short |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
title_full |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
title_fullStr |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
title_full_unstemmed |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
title_sort |
Inflows, Outflows, and a Giant Donor in the Remarkable Recurrent Nova M31N 2008-12a? - Hubble Space Telescope Photometry of the 2015 Eruption |
author |
Darnley, M. J. |
author_facet |
Darnley, M. J. Hounsell, R. Godon, P. Perley, D. A. Henze, M. Kuin, N. P. M. Williams, B. F. Williams, S. C. Bode, M. F. Harman, D. J. Hornoch, K. Link, M. Ness, J.-U. Ribeiro, V. A. R. M. Sion, E. M. Shafter, A. W. Shara, M. M. |
author_role |
author |
author2 |
Hounsell, R. Godon, P. Perley, D. A. Henze, M. Kuin, N. P. M. Williams, B. F. Williams, S. C. Bode, M. F. Harman, D. J. Hornoch, K. Link, M. Ness, J.-U. Ribeiro, V. A. R. M. Sion, E. M. Shafter, A. W. Shara, M. M. |
author2_role |
author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Darnley, M. J. Hounsell, R. Godon, P. Perley, D. A. Henze, M. Kuin, N. P. M. Williams, B. F. Williams, S. C. Bode, M. F. Harman, D. J. Hornoch, K. Link, M. Ness, J.-U. Ribeiro, V. A. R. M. Sion, E. M. Shafter, A. W. Shara, M. M. |
dc.subject.por.fl_str_mv |
Accretion, accretion disks Novae, cataclysmic variables Galaxies: individual (M31) Stars: individual (M31N 2008-12a) Ultraviolet: stars |
topic |
Accretion, accretion disks Novae, cataclysmic variables Galaxies: individual (M31) Stars: individual (M31N 2008-12a) Ultraviolet: stars |
description |
The recurrent nova M31N 2008-12a experiences annual eruptions, contains a near-Chandrasekhar-mass white dwarf, and has the largest mass accretion rate in any nova system. In this paper, we present Hubble Space Telescope (HST) WFC3/UVIS photometry of the late decline of the 2015 eruption. We couple these new data with archival HST observations of the quiescent system and Keck spectroscopy of the 2014 eruption. The late-time photometry reveals a rapid decline to a minimum luminosity state, before a possible recovery/rebrightening in the run up to the next eruption. Comparison with accretion disk models supports the survival of the accretion disk during the eruptions, and uncovers a quiescent disk mass accretion rate of the order of ${10}^{-6}\,{M}_{\odot }\,{\mathrm{yr}}^{-1}$, which may rise beyond ${10}^{-5}\,{M}_{\odot }\,{\mathrm{yr}}^{-1}$ during the super-soft source phase—both of which could be problematic for a number of well-established nova eruption models. Such large accretion rates, close to the Eddington limit, might be expected to be accompanied by additional mass loss from the disk through a wind and even through collimated outflows. The archival HST observations, combined with the disk modeling, provide the first constraints on the mass donor: ${L}_{\mathrm{donor}}={103}_{-11}^{+12}\,{L}_{\odot },{R}_{\mathrm{donor}}={14.14}_{-0.47}^{+0.46}\,{R}_{\odot }$, and ${T}_{\mathrm{eff},\mathrm{donor}}=4890\pm 110$ K, which may be consistent with an irradiated M31 red-clump star. Such a donor would require a system orbital period $\gtrsim 5$ days. Our updated analysis predicts that the M31N 2008-12a WD could reach the Chandrasekhar mass in $\lt 20$ kyr. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-07T11:28:07Z 2017-11-06T00:00:00Z 2017-11-06 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/18730 |
url |
http://hdl.handle.net/10773/18730 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0004-637X 10.3847/1538-4357/aa9062 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
American Astronomical Society |
publisher.none.fl_str_mv |
American Astronomical Society |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137587838844928 |