YZ Carinae - an 18-day Cepheid in a binary system

Details YZ Carinae - an 18-day Cepheid in a binary system YZ Carinae - an 18-day Cepheid in a binary system

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.205.1135c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 205, Dec. 1983, p. 1135-1139.

Astronomy and Astrophysics

Astronomy

13

Cepheid Variables, Orbit Calculation, Radial Velocity, Stellar Motions, A Stars, Companion Stars, Orbital Elements, Velocity Distribution

Scientific paper

Radial velocity measures of the 18-day Cepheid YZ Carinae show it to
belong to a binary system with an orbital period of about 850 days.
Tentative orbital parameters are derived and they suggest an orbit of
low eccentricity with no interaction between the components. The
Cepheid's companion is probably of spectral type A0 V.

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