| タイトル | A study of excess H-alpha emission in chromospherically active M dwarf |
| 著者（英） | Stauffer, John R.; Young, Arthur; Skumanich, Andrew; Bopp, Bernard W.; Harlan, Eugene |
| 著者所属（英） | Ritter Observatory|Lick Observatory|Toledo Univ.|San Diego State Univ.|National Center for Atmospheric Research |
| 発行日 | 1989-09-01 |
| 言語 | eng |
| 内容記述 | Spectroscopic observations from three observatories are combined to study the properties of the excess H-alpha emission which characterizes the most chromospherically active subset of the M dwarf stars, known as the dMe stars. It is demonstrated that the excess H-alpha luminosity from these stars is a monotonically decreasing function of their (R-I) color, and evidence is presented which suggests that the product of the mean surface brightness and the mean filling factor of the emissive regions is essentially constant with color. Another significant result of the study is a linear correlation between the excess luminosity in H-alpha and the coronal X-ray luminosity. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 89A51992 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/361584 |
|
