تقرير
Rotation periods of open-cluster stars, 2
| العنوان: | Rotation periods of open-cluster stars, 2 |
|---|---|
| المؤلفون: | Prosser, Charles F, Shetrone, Matthew D, Marilli, Ettore, Catalano, Santo, Williams, Scott D, Backman, Dana E, Laaksonen, Bentley D, Adige, Vikram, Marschall, Laurence A, Stauffer, John R |
| المصدر: | Astronomical Society of the Pacific, Publications. 105(694) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 1993. |
| سنة النشر: | 1993 |
| مصطلحات موضوعية: | Astrophysics |
| الوصف: | 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. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 0004-6280 |
| DOI: | 10.1086/133322 |
| URL الوصول: | https://ntrs.nasa.gov/citations/19950041543 |
| ملاحظات: | NSF AST-90-16521 NAGW-2698 |
| رقم الأكسشن: | edsnas.19950041543 |
| قاعدة البيانات: | NASA Technical Reports |
Full Text Finder | تدمد: | 00046280 |
|---|---|
| DOI: | 10.1086/133322 |