Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...202l..67m&link_type=abstract
Astrophysical Journal, vol. 202, Dec. 1, 1975, pt. 2, p. L67-L71.
Astronomy and Astrophysics
Astronomy
109
Astronomical Netherlands Satellite, Spaceborne Astronomy, Stellar Radiation, X Ray Astronomy, X Ray Stars, Binary Stars, Giant Stars, Main Sequence Stars, Stellar Mass Ejection, Supergiant Stars, Ultraviolet Radiation
Scientific paper
The soft X-ray detector aboard the Astronomical Netherlands Satellite (ANS) has been used to search for soft X-ray emission in the range 0.2 to 0.284 keV from hot stellar coronae. X-ray emission has been detected from Capella (alpha Aur) and Sirius (alpha CMa). For 26 other stars (main sequence, subgiants, giants, and supergiants) upper limits to the X-ray luminosity have been obtained. The physical conditions of a corona needed to explain the observations are discussed.
Brinkman Albert C.
den Boggende Antonius J. F.
Gronenschild H. B. M. E.
Heise Jaret
Mewe Rolf
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