Speckle Interferometry of New and Problem Hipparcos Binaries

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© 1999. The American Astronomical Society. All rights reserved. Printed in U.S.A.
, , Citation Brian D. Mason et al 1999 AJ 117 1890 DOI 10.1086/300823

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Author affiliations

1 US Naval Observatory, 3450 Massachusetts Avenue, NW, Washington, DC 20392-5420

2 Center for High Angular Resolution Astronomy, Georgia State University, Atlanta, GA 30303-3083

3 1612 West 9½ Street, Austin, TX 78703

4 Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001

5 Guest Observer, McDonald Observatory, University of Texas at Austin

6 Visiting Astronomer, Mount Wilson Observatory, operated under a collaborative agreement between the Carnegie Institution of Washington and the Mount Wilson Institute

7 Visiting Astronomer, Canada-France-Hawaii Telescope, operated by the National Research Council of Canada, the Centre National de la Recherche Scientifique of France, and the University of Hawaii

8 Visiting Astronomer, Kitt Peak National Observatory, National Optical Astronomy Observatories, operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation

9 Visiting Astronomer, Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatories

10 Deceased

Dates

  1. Received 1998 December 16
  2. Accepted 1999 January 12
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1538-3881/117/4/1890

Abstract

The ESA Hipparcos satellite made measurements of over 12,000 double stars and discovered 3406 new systems. In addition to these, 4706 entries in the Hipparcos Catalogue correspond to double star solutions that did not provide the classical parameters of separation and position angle (ρ, θ) but were the so-called problem stars, flagged "G," "O," "V," or "X" (field H59 of the main catalog). An additional subset of 6981 entries were treated as single objects but classified by Hipparcos as "suspected nonsingle" (flag "S" in field H61), thus yielding a total of 11,687 "problem stars." Of the many ground-based techniques for the study of double stars, probably the one with the greatest potential for exploration of these new and problem Hipparcos binaries is speckle interferometry. Results are presented from an inspection of 848 new and problem Hipparcos binaries, using both archival and new speckle observations obtained with the USNO and CHARA speckle cameras.

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10.1086/300823