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IUE observations of solar-type stars in the Pleiades and the HyadesAn 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.
Document ID
19920035413
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Caillault, Jean-Pierre (Georgia, University Athens, United States)
Vilhu, Osmi (Helsinki, University Observatory, Finland)
Linsky, Jeffrey L. (Joint Institute for Laboratory Astrophysics Boulder, CO, United States)
Date Acquired
August 15, 2013
Publication Date
December 20, 1991
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 383
ISSN: 0004-637X
Subject Category
ASTROPHYSICS
Funding Number(s)
CONTRACT_GRANT: NAG5-974
CONTRACT_GRANT: NAG5-82
CONTRACT_GRANT: NSF INT-89-00202
Distribution Limits
Public
Copyright
Other