Discovery of five pre-main-sequence binaries in Taurus

Details Discovery of five pre-main-sequence binaries in Taurus Discovery of five pre-main-sequence binaries in Taurus

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357..224c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 357, July 1, 1990, p. 224-230. Research supported by NSF.

Astronomy and Astrophysics

Astrophysics

46

Binary Stars, Lunar Occultation, Pre-Main Sequence Stars, Star Formation, Taurus Constellation, Early Stars, Extremely High Frequencies, Near Infrared Radiation, Stellar Evolution

Scientific paper

The progress of an infrared K band lunar occultation search for binaries among premain-sequence stars is reported. From the fall of 1986 to the fall of 1989, 13 objects have been observed, all in the Taurus star-forming region. Five new binaries have been discovered: DF Tau, DI Tau, FS Tau (Haro 6-5) A, FV Tau (Haro 6-8), and FW Tau, with projected separations ranging from 0.01 to 0.57 arcsec. Including results reported previously, a total of 31 objects, 21 in Taurus and 10 in Ophiuchus, have been surveyed and nine double systems have been found. The detected binary frequency (0.29) seems consistent with that of the solar-type main-sequence field stars.

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