Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007chjaa...7..572z&link_type=abstract
Chinese Journal of Astronomy & Astrophysics, Vol. 7, p. 572-578
Astronomy and Astrophysics
Astrophysics
Open Cluster, Radial Velocity, Proper Motion, Luminosity Distance, Velocity Distance
Scientific paper
On the reasonable hypothesis that the internal motions of member stars of a cluster are random and isotropic, a method which can be used to estimate the velocity distance of the cluster and its uncertainty is developed. The velocity distance so determined is an absolute distance estimate, and is completely independent of the (widely used) luminosity distance, which is a relative distance estimate. Using the published high-accuracy observational data of radial velocities and proper motions of the stars in the open cluster M11 region, we have determined the distance of M11 to be 1.89±0.52 kpc. This is in quite good agreement with the published luminosity distances of the cluster. We briefly discuss the problems concerned, including the sources of errors in the method and its applicable range.
Chen Leon L.
Zhao Jun-Liang
No associations
LandOfFree
Velocity Distance 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 Velocity Distance of the Open Cluster M11, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Velocity Distance of the Open Cluster M11 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-970251