Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity

Details Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity

2006-09-26

arxiv.org/abs/astro-ph/0609727v1

Astrophys.J.651:L133-L136,2006

Astronomy and Astrophysics

Astrophysics

4 pages, 3 colored figures. LOW-RESOLUTION VERSION. The interested reader is strongly encouraged to download the full-resoluti

Scientific paper

10.1086/509720

Using the Hubble Space Telescope, we have obtained the first color-magnitude diagram (CMD) to reach the main-sequence turnoff of the Galactic globular cluster NGC 6388. From a comparison between the cluster CMD and 47 Tucanae's, we find that the bulk of the stars in these two clusters have nearly the same age and chemical composition. On the other hand, our results indicate that the blue horizontal branch and RR Lyrae components in NGC 6388 are intrinsically overluminous, which must be due to one or more, still undetermined, non-canonical second parameter(s) affecting a relatively minor fraction of the stars in NGC 6388.

Affiliated with

Also associated with

No associations

Rating

Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity 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 Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deep HST Photometry of NGC 6388: Age and Horizontal Branch Luminosity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-166422