Contribution to the study of F, G, K, M binaries. IV - Orbital elements of the spectroscopic binary HD 23838

Details Contribution to the study of F, G, K, M binaries. IV - Orbital elements of the spectroscopic binary HD 23838 Contribution to the study of F, G, K, M binaries. IV - Orbital elements of the spectroscopic binary HD 23838

Mar 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...175..136p&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 175, no. 1-2, March 1987, p. 136-140. In French.

Astronomy and Astrophysics

Astrophysics

4

Binary Stars, F Stars, G Stars, K Stars, Late Stars, M Stars, Orbital Elements, Stellar Orbits, Emission Spectra, Line Spectra, Radial Velocity, Stellar Mass, Stellar Spectrophotometry

Scientific paper

The spectroscopic binary star HD 23838 was observed during twelve years at the Observatoire de Haute-Provence with the spectrograph of the 152 cm Telescope and with the Coravel spectrophotometer in order to obtain its spectrographic orbit. For the first time, we give the following orbital elements: P=962.8 days; T=2442288.1 J.D.; ω=108.° 8; e=0.724; K=20.2 km s-1; V0=+18.4 km s-1; a sin i=184.4 106 km; ƒ(m)=0.270 msun. The mass ratio is approximately in agreement with Markowitz's MK spectral classification (G2III + F2:V). Our estimation of the components angular separation shows that probably the system resolution can be experimented by speckle interferometry on a large Telescope. Though H and K Ca ii emission lines are present in some spectra, we cannot conclude HD 23838 belongs to the RS CVn group.

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