Astronomy and Astrophysics – Astronomy
Scientific paper
May 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...188.6006h&link_type=abstract
American Astronomical Society, 188th AAS Meeting, #60.06; Bulletin of the American Astronomical Society, Vol. 28, p.920
Astronomy and Astrophysics
Astronomy
Scientific paper
GJ 372 was recently found to be a spectroscopic binary (Upgren, A.R. and Harlow, J.J.B. 1996, PASP 108, 64). It has an orbital period of 48 days and radial velocity semi-amplitudes of 31 km\ s(-1) for the primary and 39 km\ s(-1) for the secondary. The radial velocity curves of both components of GL372AB are presented for the first time. The mass ratio of the two components is measured to be 1.28 +/- 0.04. The flux ratio at 5300{ Angstroms} of 2.39 +/- 0.71 implies a spectral class difference of 1+/-0.3 subclasses. Photometry and parallax measurements from the literature suggest a spectral class for the primary of M1.5V +/- 1 subclass, and a corresponding range for the secondary of M2.5V +/- 1 subclass.
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