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http://hdl.handle.net/2248/4332| Title: | The dependence of He I 10830 absorption on X-ray luminosity in RS CVn binaries and very active F and G main-sequence stars |
| Authors: | Mekkaden, M. V |
| Keywords: | Absorption Spectra Binary Stars F Stars G Stars Helium Ions Main Sequence Stars Stellar Luminosity X Ray Spectra Spectral Line Width Stellar Atmospheres Stellar Coronas |
| Issue Date: | Mar-1985 |
| Publisher: | Kluwer Academic Publishers |
| Citation: | Astrophysics and Space Science, Vol. 110, No. 2, pp. 413 - 416 |
| Abstract: | A study of the relationship between soft X-ray luminosity and He I 10830 equivalent width in RS CVn binaries and very active late-type main-sequence stars is made. Long-period RS CVns and very active F and G main-sequence stars show strong dependence on their X-ray luminosities. This is attributed to the dominance of coronal excitation of the line in these stars. Short-period RS CVn binaries have lower He I 10830 absorption compared to their X-ray emission. This phenomenon is explained by the presence of He I emission region also in their chromospheres. |
| URI: | http://hdl.handle.net/2248/4332 |
| ISSN: | 0004-640X |
| Appears in Collections: | IIAP Publications |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| The dependence of He I 10830 absorption on X-ray luminosity | 319.29 kB | Adobe PDF |  View/Open |
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