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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
A planetary nebula around Nova V458 vulpeculae undergoing flash ionization
Astrophysical Journal, Volume 688, No. 1 PART 2, Year 2008
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Description
Nova V458 Vul erupted on 2007 August 8 and reached a visual magnitude of 8.1 a few days later. Ha 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 M&o.;, 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. © 2008. The American Astronomical Society. All rights reserved. Printed in U.S.A.
Authors & Co-Authors
Wesson, Roger
United Kingdom, London
University College London
Barlow, M. J.
United Kingdom, London
University College London
Corradi, Romano L.M.
Spain, Santa Cruz de la Palma
Isaac Newton Group
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Drew, J. E.
United Kingdom, Hatfield
University of Hertfordshire
Groot, Paul J.
Netherlands, Nijmegen
Radboud Universiteit
Knigge, Christian
United Kingdom, Southampton
University of Southampton
Steeghs, Daniel T.H.
United Kingdom, Coventry
University of Warwick
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Gänsicke, Boris T.
United Kingdom, Coventry
University of Warwick
Napiwotzki, Ralf
United Kingdom, Hatfield
University of Hertfordshire
Rodríguez-Gil, Pablo
Spain, Santa Cruz de la Palma
Isaac Newton Group
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Albert A. Zijlstra, Albert A.
United Kingdom, Manchester
The University of Manchester
Bode, Michael F.
United Kingdom, Liverpool
Liverpool John Moores University
Drake, J. J.
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Frew, David J.
Australia, Sydney
Macquarie University
González-Solares, Eduardo A.
United Kingdom, Cambridge
Institute of Astronomy
Greimel, Robert
Austria, Graz
Universität Graz
Irwin, Michael J.
United Kingdom, Cambridge
Institute of Astronomy
Morales-Rueda, Luisa
Netherlands, Nijmegen
Radboud Universiteit
Nelemans, Gijs A.
Netherlands, Nijmegen
Radboud Universiteit
Parker, Quentin A.
Australia, Sydney
Macquarie University
Sale, Stuart E.
United Kingdom, London
Imperial College London
Sokoloski, J. L.
United States, New York
Columbia University
Somero, Auni
Spain, Brena Baja
Nordic Optical Telescope
Finland, Helsinki
Helsingin Yliopisto
Uthas, Helena
United Kingdom, Southampton
University of Southampton
Spain, Brena Baja
Nordic Optical Telescope
Walton, Nicholas A.
United Kingdom, Cambridge
Institute of Astronomy
Warner, Brian P.
United Kingdom, Southampton
University of Southampton
South Africa, Cape Town
University of Cape Town
Watson, Chris A.
United Kingdom, Sheffield
The University of Sheffield
Wright, Nicholas J.
United Kingdom, London
University College London
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Statistics
Citations: 50
Authors: 28
Affiliations: 19
Identifiers
Doi:
10.1086/594366
ISSN:
0004637X
e-ISSN:
15384357
Study Design
Cross Sectional Study
Study Approach
Quantitative