Radial Velocities of Giant Stars in Globular Clusters

Details Radial Velocities of Giant Stars in Globular Clusters Radial Velocities of Giant Stars in Globular Clusters

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pasp..111.1233s&link_type=abstract

The Publications of the Astronomical Society of the Pacific, Volume 111, Issue 764, pp. 1233-1247.

Astronomy and Astrophysics

Astronomy

8

Stars: Binaries: Spectroscopic, Stars: Variables: General, Galaxy: Globular Clusters: Individual: Messier Number: M3, Globular Clusters: Individual (M13, M15), Galaxy: Globular Clusters: Individual: Messier Number: M92

Scientific paper

We report radial velocities for 303 giant stars in the globular clusters M3, M13, M15, and M92. Spectra were obtained using the 4 m Mayall and 3.5 m WIYN telescopes and the Hydra fiber positioner between 1993 and 1997; most spectra were provided by the NOAO WIYN Queue Program. Observations spanned times from a few days to several months. The uncertainties in the velocity measurements are typically 1 km s^-1 or less. Several stars show velocity variations which may result from binary companions or atmospheric motions. Mean cluster velocities were measured to be -147.0+/-0.3, -245.5+/-1.0, -106.2+/-0.3, and -120.3+/-0.3 km s^-1, for M3, M13, M15, and M92, respectively. Radial velocity observations for the photometric variable V73 (vZ 1406) in M3 confirm that the star varies with a period of 0.67 days.

Affiliated with

Also associated with

No associations

Rating

Radial Velocities of Giant Stars in Globular Clusters 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 Radial Velocities of Giant Stars in Globular Clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial Velocities of Giant Stars in Globular Clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1544282