HD 22403, a spectroscopic binary with CA II emission lines

Details HD 22403, a spectroscopic binary with CA II emission lines HD 22403, a spectroscopic binary with CA II emission lines

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....74..113c&link_type=abstract

Astronomy and Astrophysics, vol. 74, no. 1, Apr. 1979, p. 113-115. In French.

Astronomy and Astrophysics

Astrophysics

8

Astronomical Spectroscopy, Binary Stars, Stellar Spectra, Calcium, Dwarf Stars, Emission Spectra, H Lines, K Lines, K Stars, Orbital Elements, Radial Velocity, Size (Dimensions)

Scientific paper

Strong H and K emission lines arising from the primary component Ca II are revealed by the spectroscopic binary HD 22403. A total of 21 recent spectra, together with six earlier observations, has permitted determination of the orbital elements of this star, which has a variable radial velocity. A dwarf K-star is suggested as a candidate for the secondary component of the binary. Additional data are required to situate the spectroscopic binary among RS CVn binary stars.

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