Comparison of the Pulkovo compilation of radial velocities with the RAVE DR1 catalogue

Details Comparison of the Pulkovo compilation of radial velocities with the RAVE DR1 catalogue Comparison of the Pulkovo compilation of radial velocities with the RAVE DR1 catalogue

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007astl...33..390g&link_type=abstract

Astronomy Letters, Volume 33, Issue 6, pp.390-395

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The Data Release 1 of the Radial-Velocity Experiment (RAVE DR1 1, 24748 stars) (PCRV, 35 495 stars) is compared with the May 15, 2006 version of the Pulkovo Compilation of Radial Velocities (PCRV, 35 495 stars). RAVE DR1 includes mostly 9 13 m stars, while the PCRV contains brighter stars. Analysis of the “RAVE minus PCRV” radial-velocity differences for 14 common stars has revealed no systematic dependences on any factors, except the effect due to the RAVE radial-velocity zero-point offset known from the RAVE observations. This effect shows up for ten of these stars observed on a single night as a sine wave with an amplitude of 1.5 km s-1 in the dependence of the radial-velocity difference on the ordinal number of the optical fiber used and, accordingly, on the star position angle in the field of view of the RAVE instrument. The detection of this dependence confirms a high radial-velocity accuracy in both catalogs: on average, better than 1 km s-1 for stars brighter than 10m (for the RAVE, after applying a correction for the zero-point offset). The RAVE zero-point offset can be corrected for with an accuracy better than 1 km s-1 by observing several PCRV stars in each RAVE frame and by analyzing the “RAVE minus PCRV” radial-velocity differences.

Affiliated with

Also associated with

No associations

Rating

Comparison of the Pulkovo compilation of radial velocities with the RAVE DR1 catalogue 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 Comparison of the Pulkovo compilation of radial velocities with the RAVE DR1 catalogue, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comparison of the Pulkovo compilation of radial velocities with the RAVE DR1 catalogue will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-875688