| タイトル | PW Vul: A classical nova with nearly solar abundances |
| 著者（英） | Sparks, W. M.; Kenyon, S. J.; Wagner, R. M.; Ferland, G. J.; Truran, J. W.; Saizar, P.; Starrfield, Sumner G.; Sonneborn, George; Williams, R. E.; Austin, S. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1990-08-01 |
| 言語 | eng |
| 内容記述 | Ultraviolet 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. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 91N17942 |
| 権利 | Copyright, Distribution within the U.S. granted by agreement |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/232429 |
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