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PW Vul: A classical nova with nearly solar abundancesUltraviolet and optical spectrophotometric data are combined in order to determine the physical parameters in the expanding shell of Nova PW Vul 1984. Ultraviolet data obtained with the International Ultraviolet Explorer (IUE) satellite from August 2, 1984 (a few days after discovery) until it became too faint to study with the satellite is presented. The last IUE exposure was obtained in June 1988 but it was continually followed with ground based optical telescopes. A plot showing the variation of electron density and temperature as a function of time is presented. Analysis of the emission line intensities show that the abundances of this very slow nova are solar for helium, carbon, and oxygen while nitrogen is 50 times solar. The CLOUDY code of Ferland is used to model the emission line intensities and find good agreement with the observations. Plots representative of IUE and optical spectra are displayed.
Document ID
19910008629
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Saizar, P.
(Ohio State Univ. Columbus., United States)
Starrfield, Sumner G.
(Arizona State Univ. Tempe., United States)
Austin, S.
(Arizona State Univ. Tempe., United States)
Ferland, G. J.
(Ohio State Univ. Columbus., United States)
Wagner, R. M.
(Ohio State Univ. Columbus., United States)
Truran, J. W.
(Illinois Univ. Urbana., United States)
Sonneborn, George
(NASA Goddard Space Flight Center Greenbelt, MD., United States)
Kenyon, S. J.
(Harvard Univ. Cambridge, MA., United States)
Sparks, W. M.
(Los Alamos National Lab. NM., United States)
Williams, R. E.
(Cerro Tololo Inter-American Observatory La Serena, Chile)
Date Acquired
September 6, 2013
Publication Date
August 1, 1990
Publication Information
Publication: ESA, Evolution in Astrophysics: IUE Astronomy in the Era of New Space Missions
Subject Category
Astrophysics
Accession Number
91N17942
Funding Number(s)
CONTRACT_GRANT: NSF AST-87-19607
CONTRACT_GRANT: NSF AST-88-18215
CONTRACT_GRANT: NAG5-481
CONTRACT_GRANT: NAS5-28731
Distribution Limits
Public
Copyright
Other
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