Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...188...39l&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 188, no. 1, Dec. 1987, p. 39-45.
Astronomy and Astrophysics
Astrophysics
10
Double Stars, Orbital Elements, Radial Velocity, Stellar Spectrophotometry, Ubv Spectra, G Stars, Metallicity, Stellar Luminosity
Scientific paper
Radial-velocity data for COD -48°1741 are analyzed. The object has been identified as a high-velocity binary system. High-precision radial-velocity data have been obtained with a CORAVEL scanner. From 45 individual measurements of radial velocity, orbital elements have been determined. The system velocity is +307.9 km s-1 and the orbital period 7.56 days. The object has been measured photometrically in the uvby and UBV systems. A search for eclipses showed no significant evidence of variability. The uvby data indicate the main component to be a low-luminosity star of early G type with a metallicity of [Fe/H] = -1.5. Further astrophysical and space-velocity data are derived and discussed.
Ardeberg Arne
Lindgren Harri
Zuiderwijk E.
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