Properties of the chromosphere-corona transition region in Capella

Details Properties of the chromosphere-corona transition region in Capella Properties of the chromosphere-corona transition region in Capella

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...205l..39h&link_type=abstract

Astrophysical Journal, vol. 205, Apr. 1, 1976, pt. 2, p. L39-L42.

Astronomy and Astrophysics

Astrophysics

39

Binary Stars, Chromosphere, Coronas, Late Stars, Stellar Spectra, Ultraviolet Spectra, Astronomical Spectroscopy, Line Spectra, Solar Activity, Stellar Mass, Stellar Winds

Scientific paper

Analysis of recent ultraviolet observations of the Capella binary system (Alpha Aur) indicates a dense geometrically narrow chromosphere-corona transition region in the Capella system primary (G5 III) similar in many respects to a solar active region. An examination of the coronal energy balance, together with the coronal base pressure derived from the line fluxes, predicts a corona with a mean temperature of 1.2 million K and a large stellar wind consistent with observations.

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