The main sequence of the globular cluster M22

Details The main sequence of the globular cluster M22 The main sequence of the globular cluster M22

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1330a&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, Sept. 1983, p. 1330-1343.

Astronomy and Astrophysics

Astronomy

26

Globular Clusters, Main Sequence Stars, Milky Way Galaxy, Stellar Color, Stellar Evolution, Stellar Magnitude, Astrometry, Astronomical Maps, Astronomical Photography, Electrophotometry, Interstellar Extinction, Metallicity

Scientific paper

Photographic photometry for 545 stars in the metal-poor globular cluster M22 has allowed its position at the main sequence to be determined as V = 17.5 + or - 0.2 and B-V = 0.66 + or - 0.03. On the basis of these values, intrinsic M(V) and (B-V)zero values of 4.0 and 0.34, respectively, are derived. For the cluster as a whole, a distance modulus (m-M)v of 13.50 + or - 0.15 and a reddening E(B-V) of 0.32 + or 0.03 are obtained. A larger than normal uncertainty in the 14.5 + or - 4 Gys age deduced is due to the difficulty of evaluating the reddening to the cluster, and to the spread in, or uncertainty of, the Fe/H abundance ratio.

Affiliated with

Also associated with

No associations

Rating

The main sequence of the globular cluster M22 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 The main sequence of the globular cluster M22, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The main sequence of the globular cluster M22 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1588178