IUE spectra of G0 V-G5 V solar-type stars

Details IUE spectra of G0 V-G5 V solar-type stars IUE spectra of G0 V-G5 V solar-type stars

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apjs...58..179h&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 58, May 1985, p. 179-193.

Astronomy and Astrophysics

Astrophysics

21

Chromosphere, G Stars, Iue, Late Stars, Stellar Activity, Stellar Spectra, Ultraviolet Spectra, Continuous Spectra, Radiant Flux Density, Stellar Temperature, Sun

Scientific paper

An atlas of IUE short-wavelength spectra for a set of 14 bright G0 V-G5 V stars are presented, and it is shown that these manifest a range of qualitatively different chromospheric and transition region spectra and significant differences in radiative flux originating at the temperature minimum level. A comprehensive survey of observational data and physical parameters of these stars has been performed, and tabular summaries of the data are presented. It is concluded that the UV continuum longward of about 1600 A is a diagnostic of the temperature minimum. A considerable range of minimum temperature for stars of similar effective temperature and spectral type is found. The temperature minimum of the sun is highly structured on spatial scales of about one arcsec.

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