The EUV spectrum of κ Ceti: an active Sun.

Details The EUV spectrum of κ Ceti: an active Sun. The EUV spectrum of κ Ceti: an active Sun.

Aug 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...324.1027l&link_type=abstract

Astronomy and Astrophysics, v.324, p.1027-1035

Astronomy and Astrophysics

Astrophysics

8

Stars: Individual: {Kappa} Ceti, Stars: Coronae, Stars: Late-Type, Ultraviolett: Stars

Scientific paper

The spectrum of κ Cet in the region 80-370Å observed by EUVE Spectrometers is analyzed to investigate the transition region and the corona of the star. The star appears to be in a rather quiet condition and no evidence exists of flare-like lines observed in many active stars. Several emission lines of moderately ionized iron (from Fe IX to Fe XVIII) are identified and used together with I.U.E. observations to evaluate the differential emission measure (DEM). The DEM peaks at about 3x10^6^K, a value typical of solar active regions. This is confirmed by a comparison with the spectrum of an Active Region of the Solar Corona measured by the Coronal Diagnostic Spectrometer on SOHO showing very similar features.

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