Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
We present the results of a search for and analysis of line-profile variations in the spectrum of the star ι Her. The observations were acquired with the 1.8 m telescope of the Bohyunsan Optical Astronomy Observatory (Republic of Korea) in May-June 2004. We obtained 69 spectra of the star with signal-to-noise ratios ≈300 and a time resolution of 5-7 min. Profile variability was revealed for six lines of HI, HeI, and SiIII, in the central parts of the lines. The variability amplitude is ≈(1-2)% in units of the intensity of the adjacent continuum. Evidence was found for cyclic variations of the lines, with periods from ≈7h to ≈2.9d. We conclude that ι Her belongs to the group of slowly pulsating stars.
| Язык оригинала | английский |
|---|---|
| Страницы (с-по) | 220-231 |
| Число страниц | 12 |
| Журнал | Astronomy Reports |
| Том | 50 |
| Номер выпуска | 3 |
| DOI | |
| Состояние | Опубликовано - 1 мар 2006 |
ID: 36161658