Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982stin...8316261s&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
Chromosphere, Late Stars, Stellar Evolution, Ultraviolet Astronomy, Ultraviolet Spectra, Early Stars, Emission Spectra, Iue, Solar Activity
Scientific paper
Ultraviolet data obtained with the IUE spacecraft are presented for a dozen solar-type stars in the field. The stars are of spectral type F6 V - G1 V; on the basis of their high Li content, they range in age from 0.1 to 2.8 Gyr. The evolution of transition regions and chromospheric emission with stellar age is studied along with the surface distribution of magnetically active regions as revealed by rotational modulation of UV emission line fluxes.
Boesgaard Ann Merchant
Simon Theodore
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