Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aj....121.3254t&link_type=abstract
The Astronomical Journal, Volume 121, Issue 6, pp. 3254-3258.
Astronomy and Astrophysics
Astronomy
20
Stars: Individual (Hd 144287, Hd 190067, Μ Her A, Hr 7123, 16 Cyg A)
Scientific paper
We present results of a search for faint companions to nearby (d<25 pc) solar-like (F and G spectral type) stars using the natural guide star adaptive optics system on the Mount Wilson 100 inch (2.5 m) telescope during the period from 1996 June to 1999 August. The observing list, based on the third edition (1991) of the Catalogue of Nearby Stars by Gliese and Jahreiss, at present has 416 entries. To date, about 20% of the objects have been observed under varied seeing conditions. We have detected faint visible companions to five of the stars: HD 144287, μ Her A, HR 7123, 16 Cyg A, and HD 190067. The companions of three of these-μ Her A, HR 7123, and HD 190067-are new discoveries. Based on observations from Mount Wilson Observatory, operated by the Mount Wilson Institute under an agreement with the Carnegie Institution of Washington.
Hartkopf William I.
Mason Brian D.
McAlister Harold A.
Roberts Lewis C. Jr.
ten Brummelaar Theo A.
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