Observations and analysis of MT HER

Details Observations and analysis of MT HER Observations and analysis of MT HER

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.153..335b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 153, no. 2, March 1989, p. 335-343.

Astronomy and Astrophysics

Astrophysics

2

Dwarf Stars, Eclipsing Binary Stars, Stellar Models, Stellar Spectrophotometry, Visual Photometry, Curve Fitting, F Stars, K Stars, Light Curve

Scientific paper

Previously reported BV photometry of MT Her is analyzed with the aid of efficient curve-fitting techniques. There is insufficient overall data to allow a definitive parameterization of the binary, but the possibility of a classical Algol can be confidentially ruled out. A provisional model is advanced which consists of two close unevolved dwarfs; the primary (a late F-type) and the secondary (a mid K-type). The system is located at a distance of about 250 pc in a region of fairly heavy interstellar extinction near the Galactic disk. It may be a 'short-period RS CVn'-type binary, but this possibility, as the provisional model itself, requires spectrographic confirmation.

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