Ultraviolet eclipse observations of an accretion disk wind

Details Ultraviolet eclipse observations of an accretion disk wind Ultraviolet eclipse observations of an accretion disk wind

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..16...53d&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 16, no. 3, p. 53-56

Astronomy and Astrophysics

Astronomy

Accretion Disks, Cataclysmic Variables, Eclipses, Mass Flow, Mass Transfer, Time Series Analysis, Ultraviolet Astronomy, Absorption Spectra, Hubble Space Telescope, Iue, Light Curve, Line Spectra

Scientific paper

We present eclipse time series of ultraviolet CIV 1549A and HeII profiles in the spectrum of the nova-like variable UX UMa, obtained using the Goddard High Resolution Spectrometer (GHRS) on board the Hubble Space Telescope (HST). These data provide important new insights into the origin of these mainly wind-formed lines. Specifically, they show that the shallow line eclipses first discovered in International Ultraviolet Explorer (IUE) observations are due to the occultation of superposed narrow absorption features and provide the first clear evidence that the outflows in high-state cataclysmic variables (CV) are rooted in the inner accretion disk.

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