Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988acaps...7..273z&link_type=abstract
(Acta Astrophysica Sinica, vol. 7, no. 4, 1987, p. 273-279) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 12, March
Astronomy and Astrophysics
Astrophysics
Open Clusters, Star Clusters, Stellar Mass, Star Distribution, Stellar Motions
Scientific paper
The procedures used in estimating the virial mass of a star cluster from observational data are examined critically, and results are presented for the open cluster M11. It is pointed out that the criteria developed by McNamara and Sanders (1977) are not stringent enough for open clusters, where the probability of sample contamination by field stars is high. The surface distributions of stars with different membership probabilities in M11 are presented graphically and analyzed. Using strict membership criteria, the M11 virial mass is found to be 5094 solar masses, in good agreement with the value determined by Mathieu (1984) from analysis of the luminosity function: 4671 solar masses, corresponding to a virial ratio of over 0.9.
He Yan-Ping
Zhao Jun-Liang
No associations
LandOfFree
The virial mass of the open cluster M11 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 virial mass of the open cluster M11, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The virial mass of the open cluster M11 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1670388