Origine des raies coronales des novae |
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| Authors: | I Malakpour |
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| Institution: | (1) Institute of Geophysics, Tehran University, Tehran, Iran |
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| Abstract: | First, the lines identified on the spectrum region 3060–6100 Å of the Nova Delphini 1967, taken in November 1972, are given. The coronal lines of novae: Herculis 1960, Herculis 1963, Delphini 1967, Serpentis 1970, Scuti 1975, Cygni 1975 have been studied and the observational results of these as well as those obtained for older novae and the recurrent novae RS ophiuchi are given.By studying all the proposed mechanisms for the formation of the coronal lines and the observational results mentioned above, it is found that the shock waves, produced by the collision of the principal envelope with the dusty circumstellar envelope, heat the circumstellar envelope and the heated material then emits the coronal lines. |
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