Proper motions of open clusters within 1 kpc based on the TYCHO2 Catalogue

被引:59
作者
Dias, WS [1 ]
Lépine, JRD [1 ]
Alessi, BS [1 ]
机构
[1] Univ Sao Paulo, Dept Astron, BR-01060970 Sao Paulo, Brazil
关键词
Galaxy : open clusters and associations : general; astrometry;
D O I
10.1051/0004-6361:20011021
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present mean absolute proper motions of 112 open clusters, determined using the data from the Tycho2 Catalogue. For 28 clusters, this is the first determination of proper motion. The measurements made use of a large number of stars (usually several tens) for each cluster. The total number of stars studied in the fields of the 164 open clusters is 5016, of which 4006 were considered members. The mean proper motions of the clusters and membership probability of individual stars were obtained from the proper motion data by applying the statistical method proposed by Sanders (1971).
引用
收藏
页码:441 / 447
页数:7
相关论文
共 28 条
[1]  
Baumgardt H, 1998, ASTRON ASTROPHYS, V340, P402
[2]   Absolute proper motions of open clusters I. Observational data [J].
Baumgardt, H ;
Dettbarn, C ;
Wielen, R .
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 2000, 146 (02) :251-258
[3]   A Hipparcos census of the nearby OB associations [J].
de Zeeuw, PT ;
Hoogerwerf, R ;
de Bruijne, JHJ ;
Brown, AGA ;
Blaauw, A .
ASTRONOMICAL JOURNAL, 1999, 117 (01) :354-399
[4]  
Dias WS, 2000, ASTRON ASTROPHYS, V357, P149
[5]  
DIAS WS, 2001, UNPUB
[6]  
*ESA, 1997, ESA, V120
[7]  
Glushkova EV, 1997, ASTRON LETT+, V23, P71
[8]  
Glushkova EV, 1996, ASTRON LETT+, V22, P764
[9]  
GULYAEV AP, 1992, CHETYREKHMILLIONNOM
[10]  
Hog E, 2000, ASTRON ASTROPHYS, V355, pL27