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- W33251004 abstract "Far-UV spectra of AM Her in a high optical state were obtained in 1993 September with the University of California, Berkeley (UCB) spectrometer aboard the ORFEUS telescope. The UCB spectrometer has a spectral resolution {lambda}/{Delta}{lambda} 3000 and covers the 390-1170 {Angstrom} bandpass, but interstellar absorption leaves no detectable -flux below the Lyman limit. Spectra of AM Her were acquired during the intervals 04:19:40-04:36:26 UT on September 16 and 08:34:03-09:09:06 UT on September 17 of 1993. The corresponding magnetic phases are 0.75-0.84 and 0.88-1.07 according to the linear polarization ephemeris of S. Tapia. The main spectral features are the 0 VI doublet, C III {lambda}977, and He II {lambda}1085 (Balmer {gamma}). The bright C III {lambda}1176 multiplet, which is detected by IUE, is at the very end of the spectrum. At the full spectral resolution of the instrument, the 0 VI doublet shows broad and narrow components similar to that of the optical emission lines. The intensity ratio of the narrow component of the 0 VI doublet is {approximately} 1.3:1, much closer to the optically thick limit of 1:1 than the optically thin ratio of 2:1." @default.
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- W33251004 date "1995-04-06" @default.
- W33251004 modified "2023-10-11" @default.
- W33251004 title "ORFEUS and EUVE observations of AM herculis" @default.
- W33251004 hasPublicationYear "1995" @default.
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