Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pasp...95..264h&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 95, April 1983, p. 264-267.
Astronomy and Astrophysics
Astronomy
3
Balmer Series, Binary Stars, Emission Spectra, Spectral Line Width, Stellar Spectrophotometry, Variable Stars, Atomic Spectra, Helium Atoms, Line Spectra, Radial Velocity
Scientific paper
Popova and Vitrichenko (1978) published data and a discussion on the variable KR Aurigae. The spectrum is that of a cataclysmic variable showing Balmer emission, weak He II lambda 4686, and a blue continuum with a power-law flux distribution. The star thus appears to be a cataclysmic variable of the class normally in a high state. Shafter (1982) reported the discovery of a velocity periodicity of 3.907 hours during a low optical state. In connection with the present investigation, spectroscopic observations were made of KR Aur over several seasons during its (normal) high state with the image-tube spectrograph of a 1.9-m telescope. The image-tube data were recorded photographically or with a Reticon 1872 element diode array. The spectra cover the range from 4000 to 5000 A and show Balmer emission as the only persistent strong features. All spectra were measured for radial velocity of strong lines, as well as their profiles and intensities.
Crampton David
Hutchings John B.
Link Robert
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