The nearby low-mass astrometric binary LHS 1047

Details The nearby low-mass astrometric binary LHS 1047 The nearby low-mass astrometric binary LHS 1047

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988aj.....95.1226i&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 95, April 1988, p. 1226-1230.

Astronomy and Astrophysics

Astronomy

18

Astrometry, Binary Stars, Dwarf Stars, M Stars, Stellar Mass, Stellar Spectrophotometry, Companion Stars, Main Sequence Stars, Speckle Interferometry, Stellar Parallax

Scientific paper

Astrometric results are reported for the nearby M dwarf LHS 1047. A perturbation is present with a period of 4.63 yr; the absolute trigonometric parallax of the system is 0arcsec.189±0arcsec.005. Infrared speckle observations have imaged the pair at 2.2 μm, and subsequently the system has been observed visually. The masses of the two components are estimated to be 0.17±0.12 and 0.06±0.03 M_sun;. The secondary thus has one of the lowest stellar masses of any object known.

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