HZ HER - The nature and origin of the emission lines

Details HZ HER - The nature and origin of the emission lines HZ HER - The nature and origin of the emission lines

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.204.1091h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 204, Sept. 1983, p. 1091-1104.

Astronomy and Astrophysics

Astronomy

27

Binary Stars, Emission Spectra, Spectral Line Width, Ultraviolet Spectra, X Ray Sources, Iue, Spaceborne Astronomy, Spectral Energy Distribution, Spectral Resolution, Stellar Spectrophotometry

Scientific paper

The line spectrum of HZ Her/Her X-1 is investigated in highand low-dispersion IUE spectroscopy. It is noted that while velocity considerations discredit the classical sites of mission, which are the primary star's X-ray heated photosphere, accretion stream, and disk, they support an origin in discrete blobs of material orbiting at the rim of the accretion disk. A T(e) value of about 10 to the 4.4th K, together with an n(e) of about 10 to the 13.3rd/cu cm, are suggested for the blobs by an analysis of the line intensity data. It is suggested that the blobs may be identified with the material responsible for the X-ray dips.

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