The Angular Separation of the Components of Cepheid Binary AW Per

Details The Angular Separation of the Components of Cepheid Binary AW Per The Angular Separation of the Components of Cepheid Binary AW Per

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.5410m&link_type=abstract

American Astronomical Society Meeting 205, #54.10; Bulletin of the American Astronomical Society, Vol. 36, p.1428

Astronomy and Astrophysics

Astronomy

Scientific paper

The 6.4 day classical Cepheid AW Per is a spectroscopic binary with a period of 40 years and a B star secondary. Employing a cross dispersion imaging technique developed by Massa & Endal (1987), we have used HST STIS observations to determine the angular separation of the binary components. Unfortunately, we only have the separation for a single epoch. Had STIS survived, we could have determined the inclination of the system from additional measurements. Together with a spectroscopic solution of this SB2, the additional measurements would have given the inclination of the system and, hence, a direct estimate of its distance and the masses of its components.
We thank STScI, which is operated by the AURA, under NASA contract NAS 5-26555 for support.

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