IUE Observations of Solar-Type Stars in the Pleiades and the Hyades
Abstract
An extensive set of IUE observations of solar-type stars (spectral types F5-G5) in the Pleiades is presented. Spectra were obtained in January and August 1988 for both the transition region and chromospheric emission wavelength regions, respectively. Mg II fluxes were detected for two out of three Pleiades stars and C IV upper limits for two of these stars. Long-wavelength high-resolution spectra were also obtained for previously unobserved solar-type stars in the Hyades. With the inclusion of spectra of additional Hyades stars obtained from the IUE archives, surface fluxes and fractional luminosities for both clusters' solar-type stars are calculated; these values provide a better estimate for the Mg II saturation line for single stars.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1991
- DOI:
- 10.1086/170817
- Bibcode:
- 1991ApJ...383..594C
- Keywords:
-
- F Stars;
- G Stars;
- Iue;
- Open Clusters;
- Pleiades Cluster;
- Stellar Spectra;
- Abundance;
- Chromosphere;
- Emission Spectra;
- Line Spectra;
- Stellar Luminosity;
- Astrophysics;
- CLUSTERS: OPEN;
- STARS: CHROMOSPHERES;
- ULTRAVIOLET: SPECTRA