THE F0 IA STARS IN NGC 457 AND IC 2581.
THE F0 IA STARS IN NGC 457 AND IC 2581.
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NGC 457 和 IC 2581 中的 F0 IA 明星。
DOI：
10.1086/131091
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发表时间：
1982
影响因子：
3.5
通讯作者：
O. Eggen
中科院分区：
文献类型：
--
作者：
O. Eggen
利用NGC 457和IC 2581恒星的h - β和中间波段观测数据，推导出平均模量和平均变红值。前一个星团被发现与h和Chi Per相似，尽管规模缩小了，而后者与CMa OB i非常相似。Turner（1973,1978）提出，IC 2581附近的明亮恒星与该星团有关，它们可能形成一个星团，但不包含IC 2581。除了星团向南的象限外，IC 2581的变红大体上是一致的。
H-beta and intermediate band observations of stars in NGC 457 and IC 2581 are used to derive mean modulus and mean reddening values. The former cluster is found to be similar to h and Chi Per, although on a reduced scale, while the latter is very similar to CMa OB I. The bright stars in the vicinity of IC 2581, which have been suggested by Turner (1973, 1978) to be associated with the cluster, may form an association, but not one which contains IC 2581. The reddening of IC 2581 is found to be largely uniform, with the exception of the south-proceeding quadrant of the cluster.