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A planetary nebula around nova V458 vulpeculae undergoing flash ionization

A planetary nebula around nova V458 vulpeculae undergoing flash ionization
A planetary nebula around nova V458 vulpeculae undergoing flash ionization
Nova V458 Vul erupted on 2007 August 8 and reached a visual magnitude of 8.1 a few days later. H? images obtained 6 weeks before the outburst as part of the IPHAS Galactic plane survey reveal an 18th magnitude progenitor surrounded by an extended nebula. Subsequent images and spectroscopy of the nebula reveal an inner nebular knot increasing rapidly in brightness due to flash ionization by the nova event. We derive a distance of 13 kpc based on light travel time considerations, which is supported by two other distance estimation methods. The nebula has an ionized mass of 0.2 Msun and a low expansion velocity: this rules it out as ejecta from a previous nova eruption, and is consistent with it being a ~14,000 year old planetary nebula, probably the product of a prior common envelope (CE) phase of evolution of the binary system. The large derived distance means that the mass of the erupting WD component of the binary is high. We identify two possible evolutionary scenarios, in at least one of which the system is massive enough to produce a Type Ia supernova upon merging
abundances, novae, cataclysmic variables
0004-637X
L21
Wesson, R.
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Barlow, M. J.
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Corradi, R. L. M.
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Drew, J. E.
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Groot, P.J.
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Knigge, None
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Steeghs, D.
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Gaensicke, B. T.
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Napiwotzki, R.
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Rodriguez-Gil, P.
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Zijlstra, A. A.
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Bode, M. F.
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Drake, J. J.
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Frew, D.J.
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Gonzales-Solares, E.A.
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Greimel, R.
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Irwin, M.J.
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Morales-Reuda, L.
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Nelemans, G.
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Parker, Q.A.
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Sale, S.E.
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Sokoloski, J.L.
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Somero, A.
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Uthas, H.
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Walton, N.A.
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Warner, Brian
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Watson, C.A.
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Wright, N.J.
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Wesson, R.
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Barlow, M. J.
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Corradi, R. L. M.
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Drew, J. E.
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Groot, P.J.
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Knigge, None
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Steeghs, D.
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Gaensicke, B. T.
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Napiwotzki, R.
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Rodriguez-Gil, P.
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Zijlstra, A. A.
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Bode, M. F.
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Drake, J. J.
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Frew, D.J.
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Gonzales-Solares, E.A.
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Greimel, R.
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Irwin, M.J.
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Morales-Reuda, L.
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Nelemans, G.
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Parker, Q.A.
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Sale, S.E.
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Sokoloski, J.L.
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Somero, A.
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Uthas, H.
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Walton, N.A.
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Warner, Brian
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Watson, C.A.
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Wright, N.J.
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Wesson, R., Barlow, M. J., Corradi, R. L. M., Drew, J. E., Groot, P.J., Knigge, None, Steeghs, D., Gaensicke, B. T., Napiwotzki, R., Rodriguez-Gil, P., Zijlstra, A. A., Bode, M. F., Drake, J. J., Frew, D.J., Gonzales-Solares, E.A., Greimel, R., Irwin, M.J., Morales-Reuda, L., Nelemans, G., Parker, Q.A., Sale, S.E., Sokoloski, J.L., Somero, A., Uthas, H., Walton, N.A., Warner, Brian, Watson, C.A. and Wright, N.J. (2008) A planetary nebula around nova V458 vulpeculae undergoing flash ionization. Astrophysical Journal, 688 (1), L21. (doi:10.1086/594366).

Record type: Article

Abstract

Nova V458 Vul erupted on 2007 August 8 and reached a visual magnitude of 8.1 a few days later. H? images obtained 6 weeks before the outburst as part of the IPHAS Galactic plane survey reveal an 18th magnitude progenitor surrounded by an extended nebula. Subsequent images and spectroscopy of the nebula reveal an inner nebular knot increasing rapidly in brightness due to flash ionization by the nova event. We derive a distance of 13 kpc based on light travel time considerations, which is supported by two other distance estimation methods. The nebula has an ionized mass of 0.2 Msun and a low expansion velocity: this rules it out as ejecta from a previous nova eruption, and is consistent with it being a ~14,000 year old planetary nebula, probably the product of a prior common envelope (CE) phase of evolution of the binary system. The large derived distance means that the mass of the erupting WD component of the binary is high. We identify two possible evolutionary scenarios, in at least one of which the system is massive enough to produce a Type Ia supernova upon merging

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More information

Published date: 23 October 2008
Keywords: abundances, novae, cataclysmic variables

Identifiers

Local EPrints ID: 144191
URI: http://eprints.soton.ac.uk/id/eprint/144191
ISSN: 0004-637X
PURE UUID: 62739e4f-0855-4312-b9cf-2d61d11cc63c

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Date deposited: 16 Apr 2010 15:54
Last modified: 08 Nov 2021 18:10

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Contributors

Author: R. Wesson
Author: M. J. Barlow
Author: R. L. M. Corradi
Author: J. E. Drew
Author: P.J. Groot
Author: None Knigge
Author: D. Steeghs
Author: B. T. Gaensicke
Author: R. Napiwotzki
Author: P. Rodriguez-Gil
Author: A. A. Zijlstra
Author: M. F. Bode
Author: J. J. Drake
Author: D.J. Frew
Author: E.A. Gonzales-Solares
Author: R. Greimel
Author: M.J. Irwin
Author: L. Morales-Reuda
Author: G. Nelemans
Author: Q.A. Parker
Author: S.E. Sale
Author: J.L. Sokoloski
Author: A. Somero
Author: H. Uthas
Author: N.A. Walton
Author: Brian Warner
Author: C.A. Watson
Author: N.J. Wright

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