New binary stars discovered by lunar occultations. VI.

Details New binary stars discovered by lunar occultations. VI. New binary stars discovered by lunar occultations. VI.

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...382..178r&link_type=abstract

Astronomy and Astrophysics, v.382, p.178-183 (2002)

Astronomy and Astrophysics

Astrophysics

9

Astrometry, Occultations, Binaries: Close, Binaries: Spectroscopic, Binaries: Visual, Stars: Individual: Gg Tau A

Scientific paper

We present additional results from our ongoing lunar occultation program. Observations are presented here for a total of seventeen sources, for the majority of which one or two new companions are detected. The sample comprises mostly field stars, spanning a large range of spectral types. Two infrared objects without optical counterpart are also included. The range of projected separations is 0farcs007 to 0farcs162 . We report on the following binary stars: IRAS 16576-2116, IRAS 19495-1628, IRAS 18033-1955, CGCS 3964, SAO 94064, EI Tau, SAO 93950, SAO 79217, SAO 79285 and SAO 80075. We found HD 247924 and SAO 139322 to be triple systems. In the case of SAO 93950, the revised analysis of two occultation events has provided the true position angle and separation of this system. We also observed the young T Tauri star GG Tau A, where we detected a significant orbital motion with respect to the latest available measurements. In two cases, SAO 79285 and SAO 139322, a companion was already claimed on the basis of Hipparcos results, but our observations are not entirely consistent with these latter. Finally, our sample includes four stars known to be binary, namely SAO 186497, SAO 162183, SAO 96753 and SAO 161192, for which we did not detect a companion. Among these, our negative detection of the companion of SAO 162183 poses strong constraints on the parameters of this presumed binary. Based on observations collected at TIRGO (Gornergrat, Switzerland), and at Calar Alto (Spain). TIRGO is operated by CNR-CAISMI Arcetri, Italy. Calar Alto is operated by the German-Spanish Astronomical Center.

Affiliated with

Also associated with

No associations

Rating

New binary stars discovered by lunar occultations. VI. 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 New binary stars discovered by lunar occultations. VI., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New binary stars discovered by lunar occultations. VI. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1085918