CCD PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER RU 106

Details CCD PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER RU 106 CCD PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER RU 106

1995-05-27

arxiv.org/abs/astro-ph/9505129v1

Astronomy and Astrophysics

Astrophysics

25 pages, uuencoded compressed postscript file (including 13 figures)

Scientific paper

10.1086/117681

BV photometry is presented for 12 RR Lyr variables discovered in the presumably young galactic globular cluster Ruprecht 106. All variables are type RRab, and their periods span a narrow range from 0.574 to 0.652 day. We report also on the discovery of 3 SX Phe variables among the cluster blue stragglers. A likely background RR Lyr variable and two foreground contact binaries were also found in the cluster field. The reddening of Ruprecht 106 is estimated at E(B-V)=0.20 based on the (B-V) colors exhibited by the cluster RR Lyr variables at minimum light. Analysis of the "period" versus "amplitude" and "period" versus "rise-time" diagrams suggests similar metallicities of Ruprecht 106 and M3. A peak (or bump) is present in the luminosity function of the red giant branch of Ruprecht 106. Its position relative to the horizontal branch is consistent with a cluster metallicity of [Fe/H]>= -1.6.

Affiliated with

Also associated with

No associations

Rating

CCD PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER RU 106 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 PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER RU 106, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CCD PHOTOMETRY OF VARIABLE STARS IN THE GLOBULAR CLUSTER RU 106 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-656330