The companion of the 18-day classical Cepheid YZ Carinae

Details The companion of the 18-day classical Cepheid YZ Carinae The companion of the 18-day classical Cepheid YZ Carinae

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pasp..105..915e&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 105, no. 691, p. 915-918.

Astronomy and Astrophysics

Astronomy

4

Binary Stars, Cepheus Constellation, Companion Stars, Stellar Color, Stellar Luminosity, Iue, Radial Velocity, Stellar Mass, Stellar Spectra

Scientific paper

We have obtained a deep IUE spectrum of the 18-day Cepheid YZ Carinae. Flux has been detected at the level of 1-2 x 10 exp -15 ergs/sq cm/A/s from 1200 to 2000 A, which we identify as the companion in the binary system. Since this is at least partly a result of 'camera artifacts' built up during a long exposure, this is an upper limit to the flux of the companion. The contribution of camera artifacts to the spectrum is discussed. Both the flux level and crude color information are consistent with a B8 V to A0 V star.

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