Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-07-08
Astronomy and Astrophysics
Astrophysics
4 pages, 3 Postscript figures, LaTeX using venice97.sty, twocolumn.sty; to appear in Proceedings of the Hipparcos Venice '97
Scientific paper
We present a new procedure for the identification of moving groups. It is a combination of two independent member selection methods. One is a modern implementation of a classical convergent point method for proper motion data. The other objectively identifies moving groups in velocity space using proper motions and parallaxes. We briefly describe both methods, and illustrate their power by applying them to Hipparcos measurements of a field containing the Upper Scorpius subgroup of the Scorpio-Centaurus association (Sco OB2). We show how our membership selection procedure not only improves the list of previously known B and A-type members, but also identifies many new members, including a significant number of F stars. We apply our procedure to other nearby OB associations elsewhere in these proceedings (Hoogerwerf et al.; de Zeeuw et al.).
Aguilar Arevalo L.
Brown Anthony G. A.
de Bruijne Jos H. J.
de Zeeuw Tim P.
Hoogerwerf Ronnie
No associations
LandOfFree
Improved Methods for Identifying Moving Groups 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 Improved Methods for Identifying Moving Groups, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved Methods for Identifying Moving Groups will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-86576