Speckle Observations of Double Stars with PISCO at Pic du Midi: Measurements in 1998

Details Speckle Observations of Double Stars with PISCO at Pic du Midi: Measurements in 1998 Speckle Observations of Double Stars with PISCO at Pic du Midi: Measurements in 1998

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apjs..131..561s&link_type=abstract

The Astrophysical Journal Supplement Series, Volume 131, Issue 2, pp. 561-569.

Astronomy and Astrophysics

Astronomy

18

Astrometry, Stars: Binaries: Visual, Stars: Fundamental Parameters

Scientific paper

We present astrometric measurements of binary stars based on speckle observations of 164 independent sequences of observations (~104 frames each) made with the PISCO speckle camera at Pic du Midi. These measurements concern 147 objects, of which 134 were found to be double with a separation in the range 0.1"-1.0". These objects were mainly selected among grade 3 orbits to improve the accuracy of their orbits and to constrain their masses. We discovered the binarity of 59 Aql with an angular separation of 0.09"+/-0.01".

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