A new photographic C-M diagram for NGC 4833.

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6

Globular Clusters: Individual: Ngc 4833, Hr Diagram

Scientific paper

A color-magnitude diagram for the galactic globular cluster NGC 4833, based on the photographic BV photometry of about 868 stars in a 12'x12' field with an automatic measuring machine, is presented. It reaches the cluster main sequence turn-off point at V=~19.2mag ; the difference in V magnitudes between the turn-off and the horizontal branch being normal. This diagram, reaching near three magnitudes fainter is clearly an improvement over the only two previous CMDs available in the literature, both published more than two decades ago by Alcaino [A&A 13 (1971) 287] and Menzies [MNRAS 156 (1972) 207], from photographic photometry reduced with an iris photometer down to V=~16.5. Indications have been found of the presence of a red giant branch bump, approximately at the same position with respect to the horizontal branch and main sequence turn-off as in NGC 5897. There is also some hint of the deficiency of stellar population of the subgiant branch just above the turn-off point, similar to that observed in some other metal-poor globular clusters.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A new photographic C-M diagram for NGC 4833. 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 A new photographic C-M diagram for NGC 4833., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new photographic C-M diagram for NGC 4833. will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-881461

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.