Detection of X-ray emission from stellar coronae with ANS

Journal Article · Mon Dec 01 04:00:00 EST 1975 · Astrophys. J., Lett., v. 202, no. 2, pp. L67-L71

DOI:https://doi.org/10.1086/181983· OSTI ID:4050370

Mewe, R; Heise, J; Gronenschild, E H.B.H.; Brinkman, A C; Schrijver, J; den Boggende, A J.F.

With the soft X-ray detector aboard the Astronomical Netherlands Satellite (ANS) we have searched for soft X-ray emission in the range 0.2--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. (AIP)

• Research Organization: The Astronomical Institute, Space Research Laboratory, Utrecht, The Netherlands
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-024051
• OSTI ID: 4050370
• Journal Information: Astrophys. J., Lett., v. 202, no. 2, pp. L67-L71, Journal Name: Astrophys. J., Lett., v. 202, no. 2, pp. L67-L71; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

*COSMIC X-RAY SOURCES-- SOFT X RADIATION
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EV RANGE 100-1000
GIANT STARS
LUMINOSITY
MAIN SEQUENCE STARS
N56200 --Physics (Astrophysics & Cosmology)--Stars
N56300* --Physics (Astrophysics & Cosmology)--Quasi-stellar
Radio & X-Ray Sources
STELLAR ATMOSPHERES
SUPERGIANT STARS