ROTATION PERIODS OF OPEN-CLUSTER STARS .2.

被引：52

作者：

PROSSER, CF

SHETRONE, MD

MARILLI, E

CATALANO, S

WILLIAMS, SD

BACKMAN, DE

LAAKSONEN, BD

ADIGE, V

MARSCHALL, LA

STAUFFER, JR

机构：

[1] UNIV CALIF SANTA CRUZ,UNIV CALIF OBSERV,LICK OBSERV,BOARD STUDIES ASTRON & ASTROPHYS,SANTA CRUZ,CA 95064

[2] OSSERV ASTROFIS CATANIA,I-95125 CATANIA,ITALY

[3] FRANKLIN & MARSHALL COLL,DEPT PHYS & ASTRON,LANCASTER,PA 17604

[4] GETTYSBURG COLL,DEPT PHYS,GETTYSBURG,PA 17325

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1993年 / 105卷 / 694期

关键词：

D O I：

10.1086/133322

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results from a photometric monitoring program of 21 stars observed during 1992 in the Pleiades and Alpha Persei open clusters. Period determinations for 16 stars are given, 13 of which are the first periods reported for these stars. Brightness variations for an additional five cluster stars are also given. One K dwarf member of the alpha Per cluster is observed to have a period of rotation of only 4.39 hr, perhaps the shortest period currently known among BY Draconis variables. The individual photometric measurements have been deposited with the NSSDC. Combining current X-ray flux determinations with known photometric periods, we illustrate the X-ray activity/rotation relation among Pleiades K dwarfs based on available data.

引用

页码：1407 / 1414

页数：8

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