CCD Speckle Observations of Binary Stars from the Southern Hemisphere. IV. Measures during 2001

Details CCD Speckle Observations of Binary Stars from the Southern Hemisphere. IV. Measures during 2001 CCD Speckle Observations of Binary Stars from the Southern Hemisphere. IV. Measures during 2001

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aj....131.3008h&link_type=abstract

The Astronomical Journal, Volume 131, Issue 6, pp. 3008-3015.

Astronomy and Astrophysics

Astronomy

5

Astrometry, Stars: Binaries: Visual, Techniques: High Angular Resolution, Techniques: Interferometric, Techniques: Photometric

Scientific paper

We present 549 observations of 181 primarily southern binary stars. Of these, 32 are high-quality nondetections, meaning that, if binary, the system had a separation below the diffraction limit at the time of the observation, and relative astrometry is presented for the remaining 517 observations. In addition, a magnitude difference measure is reported in 312 cases in which the observation was judged to be of sufficient quality to have little decorrelation of the speckle pattern of the secondary relative to the primary star. These data were obtained from speckle observations taken at the Lowell-Tololo 0.6 m telescope at Cerro Tololo Inter-American Observatory using a fast-readout CCD detector during 2001 November. Results from an astrometric measurement precision study indicate that the measures have typical uncertainties of 12.2+/-1.4 mas in separation and 1.28d+/-0.21d in position angle with little systematic error. The magnitude differences presented show good agreement with values in the Hipparcos catalog where comparisons can be made. Their uncertainties are also characterized; they show a typical value of 0.18 mag per 2 minute observation. Four systems of particular interest are discussed.

Affiliated with

Also associated with

No associations

Rating

CCD Speckle Observations of Binary Stars from the Southern Hemisphere. IV. Measures during 2001 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with CCD Speckle Observations of Binary Stars from the Southern Hemisphere. IV. Measures during 2001, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CCD Speckle Observations of Binary Stars from the Southern Hemisphere. IV. Measures during 2001 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1857457