Cross-dispersion imaging of the classical Cepheid binary AW Per

Details Cross-dispersion imaging of the classical Cepheid binary AW Per Cross-dispersion imaging of the classical Cepheid binary AW Per

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.9005m&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #90.05; Bulletin of the American Astronomical Society, Vol. 31, p.983

Astronomy and Astrophysics

Astronomy

Scientific paper

The 6.4 day classical Cepheid AW Per is a spectroscopic binary with a period of 40 years. Using HST, we have determined the angular separation of the binary system. Although we currently have spatially resolved data for a single epoch in the orbit, the success of our approach opens the possibility of determining the inclination, sin i, of the system if the measurements are repeated at additional epochs. Since the system is potentially a double lined spectroscopic binary, a determination of sin i would provide the distance to the system and the masses of the components.

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