HST/FOC ultraviolet observations of the core of M15

Details HST/FOC ultraviolet observations of the core of M15 HST/FOC ultraviolet observations of the core of M15

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.4309p&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #43.09; Bulletin of the American Astronomical Society, Vol. 24, p.1188

Astronomy and Astrophysics

Astronomy

Scientific paper

A set of high resolution images of the core of the Galactic Globular Cluster M 15 (NGC 7078) were obtained with the Faint Object Camera on the Hubble Space Telescope through the F/48-F140W, F/48-F220W and F/96-F342W ultraviolet filters. Two UV-Color Magnitude Diagrams are presented for the ~ 300 objects measured in the 22''times 22'' field covered by our observations. These new data yield the following results: [(i)] 19 candidate variables were discovered from the rms frame-to-frame scatter of the F220W images. 15 of these are consistent with RR Lyrae stars. [(ii)] The existence of the gap on the Horizontal Branch separating the bulk of the HB stars from the Blue Tail, is confirmed. A procedure for deriving the temperature and the mass distribution for the HB stars is presented. [(iii)] 10 bright Blue Straggler stars are detected. This is the first direct evidence of the existence of such a population in M 15.

Affiliated with

Also associated with

No associations

Rating

HST/FOC ultraviolet observations of the core of M15 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 HST/FOC ultraviolet observations of the core of M15, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST/FOC ultraviolet observations of the core of M15 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1110872