目录
图像
上传图像
DSS Images Other Images
相关文章
UBVI CCD photometry of M35 (NGC 2168)
UBVI CCD photometry has been obtained for the intermediate-age opencluster M35 (NGC 2168). From this new photometry we derived the clusterparameters (V_0 - M_V= 9.60 +/- 0.10 mag, E(B-V) = 0.255 +/- 0.024 mag),age (log t_age=8.3 +/-0.3) and a photometric abundance (Z ~ 0.008, i.e.[Fe/H] ~ - 0.3) from comparison with theoretical isochrones of thePadova group. A minimum binary frequency (35 +/- 5 per cent) wasestimated from the distribution of distance moduli of unevolved propermotion members. Faint photometric members were selected by usingdifferences in the reddening effect on colour indices.
| Catalogue of blue stragglers in open clusters.
An extensive survey of blue straggler candidates in galactic openclusters of both hemispheres is presented. The blue stragglers wereselected considering their positions in the cluster colour-magnitudediagrams.They were categorized according to the accuracy of thephotometric measurements and membership probabilities. An amount of 959blue straggler candidates in 390 open clusters of all ages wereidentified and classified. A set of basic data is given for everycluster and blue straggler. The information is arranged in the form of acatalogue. Blue stragglers are found in clusters of all ages. Thepercentage of clusters with blue stragglers generally grows with age andrichness of the clusters. The mean ratio of the number of bluestragglers to the number of cluster main sequence stars is approximatelyconstant up to a cluster age of about 10^8.6^ yr and rises for olderclusters. In general, the blue stragglers show a remarkable degree ofcentral concentration.
| A proper-motion analysis of the cluster M35
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1986AJ.....91..557M&db_key=AST
| Relative proper motions in the region of the open cluster NGC 2168 (M35).
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971AJ.....76..475C&db_key=AST
| Untersuchungen uber die Eigenbewegungen von Sternhaufen IX,
Not Available
| Red indices in galactic clusters. II.Messier 35, NGC 2158, IC 2157, NGC 2129, 1817, 2266, 2281
Not Available
|
提交文章
相关链接
提交链接
下列团体成员
|
观测天体数据
目录:
|
