Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985esasp.239..117e&link_type=abstract
In ESA Proceedings of ESA Workshop on a Cosmic X-Ray Spectroscopy Mission p 117-120 (SEE N86-22461 12-89)
Astronomy and Astrophysics
Astronomy
1
Binary Stars, Variable Stars, X Ray Astronomy, Stellar Rotation, Stellar Spectra, Ultraviolet Astronomy
Scientific paper
Observations of Sigma Gem in UV show that high excitation line fluxes
increase with the emergence of a dark region from behind the approaching
limb. A moderate increase in X-ray intensity occurs, together with the
coming into view of another, weaker, spot region. Further observations
of rotational modulation effects are desirable.
Elgaroey Oe.
Engvold Odbjørn
Joraas P.
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