Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234l..65h&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 234, Nov. 15, 1979, p. L65-L68.
Astronomy and Astrophysics
Astrophysics
67
Binary Stars, Stellar Coronas, Stellar Radiation, X Ray Sources, Astronomical Spectroscopy, Astrophysics, Line Spectra, X Ray Spectra
Scientific paper
X-ray emission-line components from Mg, Si, S, and Fe are unambiguously detected from Capella with the solid-state spectrometer onboard the Einstein Observatory. The X-ray spectrum is inconsistent with an isothermal corona, and requires components between 6-million K and at least 24-million K for an adequate fit. An inhomogeneous corona in which the X-ray emitting plasma is confined to magnetically contained loops appears to be reconcilable with all of the experimental evidence.
Becker Robert H.
Boldt Elihu A.
Holt Stephen S.
Mushotzky Richard F.
Serlemitsos Peter J.
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