The detection of close binary systems in observations of lunar occultations with a 6-m telescope

Details The detection of close binary systems in observations of lunar occultations with a 6-m telescope The detection of close binary systems in observations of lunar occultations with a 6-m telescope

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987azh....64..108b&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 64, Jan.-Feb. 1987, p. 108-118. In Russian.

Astronomy and Astrophysics

Astronomy

3

Binary Stars, Electrophotometry, Lunar Occultation, Telescopes, Astrometry, Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

The results of photoelectric observations of lunar occultations of 10 stars are presented. A modified method of regularization allowing for a priori information of non-negativity of the solution is used for the restoration of the brightness strip-distribution of the occulted source. The upper limits for angular diameters of 8 stars are obtained. Two close binary systems are detected: SAO 128720 (Δ = 0arcsec.0038±0arcsec.0010, mR(1) ≈ 9m.6, mR(2) ≈ 11m.8) and SAO 110268 (Δ = 0arcsec.0083±0arcsec.0007, mR(1) ≈ 5m.9, mR(2) ≈ 7m.2). A comparative analysis of resolution limits of the lunar occultations method and speckle-interferometry is made.

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