EUVE Spectra of Capella (Alpha Aurigae)

Details EUVE Spectra of Capella (Alpha Aurigae) EUVE Spectra of Capella (Alpha Aurigae)

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...182.4125d&link_type=abstract

American Astronomical Society, 182nd AAS Meeting, #41.25; Bulletin of the American Astronomical Society, Vol. 25, p.864

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Under the Guest Observer Program for EUVE, extreme ultraviolet spectra of the bright RSCVn binary system, Capella (HD 34029; G8 III + G0 III) were obtained between 10-13 Dec. 1992 during the calibration program of the satellite. Spectra from the 3 spectrometers cover the wavelength range lambda lambda 70 - 740. The total integration time was approximately 20 hours. These data were reduced with the ``Fast-Track'' processing procedures. A rich spectrum of emission lines is detected and identified including He II (lambda 304) which is associated with the system. Many emission lines of ionized iron are identified in the spectra: Fe XV, XVI, XVIII ...; apparently Fe XXIV (lambda 192) is also present, indicative of temperatures of 2 times 10(7) \ K. Line identifications will be given, and emission measures derived for the system and compared to previous distributions from X-ray and ultraviolet spectra.

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