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Title:
Detection of X-ray emission from stellar coronae with ANS
Authors:
Mewe, R.; Heise, J.; Gronenschild, E. H. B. M.; Brinkman, A. C.; Schrijver, J.; den Boggende, A. J. F.
Affiliation:
AA(Utrecht, Rijksuniversiteit, Utrecht, Netherlands), AB(Utrecht, Rijksuniversiteit, Utrecht, Netherlands), AC(Utrecht, Rijksuniversiteit, Utrecht, Netherlands), AD(Utrecht, Rijksuniversiteit, Utrecht, Netherlands), AE(Utrecht, Rijksuniversiteit, Utrecht, Netherlands), AF(Utrecht, Rijksuniversiteit, Utrecht, Netherlands)
Publication:
Astrophysical Journal, vol. 202, Dec. 1, 1975, pt. 2, p. L67-L71. (ApJL Homepage)
Publication Date:
12/1975
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
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
Comment:
A&AA ID. AAA014.064.048
DOI:
10.1086/181983
Bibliographic Code:
1975ApJ...202L..67M

Abstract

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.

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