X-ray and optical measurements of the cataclysmic variable CH UMa

Details X-ray and optical measurements of the cataclysmic variable CH UMa X-ray and optical measurements of the cataclysmic variable CH UMa

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.201..265b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 201, Oct. 1982, p. 265-270.

Astronomy and Astrophysics

Astronomy

6

Heao 2, Stellar Spectra, Stellar Spectrophotometry, Variable Stars, X Ray Astronomy, Astronomical Photography, Emission Spectra, Line Spectra

Scientific paper

A program to identify optical counterparts of X-ray sources discovered with the Einstein Observatory has resulted in an independent identification of CH UMa as a cataclysmic variable. Spectrophotometric observations made with the Intensified Image Dissector Scanner on the 2.1-m telescope at KPNO revealed an emission line spectrum from an approximately 15 mag object similar to the spectra of cataclysmic variables. A subsequent search of the Harvard photographic plate collection revealed outbursts of 4 mag in amplitude.

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