The identity of the primary component of Capella

Details The identity of the primary component of Capella The identity of the primary component of Capella

Mar 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986japa....7...45g&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 7, March 1986, p. 45-51.

Astronomy and Astrophysics

Astrophysics

30

Binary Stars, Stellar Luminosity, Stellar Spectra, Line Spectra, Radial Velocity, Stellar Rotation

Scientific paper

Ever since the discovery in 1899 that Capella is a double-lined spectroscopic binary system the sharp-lined component, which has the later spectral type, has always been regarded as the primary (more luminous) star. However, traces obtained with radial-velocity spectrometers show that the broad-lined, earlier-type component is actually the primary.

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