X-ray and optical variability in 2A1052+606 - A new RS CVn-type system

Details X-ray and optical variability in 2A1052+606 - A new RS CVn-type system X-ray and optical variability in 2A1052+606 - A new RS CVn-type system

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.282..691c&link_type=abstract

Nature, vol. 282, Dec. 13, 1979, p. 691, 692.

Astronomy and Astrophysics

Astronomy

22

Binary Stars, Optical Properties, Spaceborne Astronomy, Variable Stars, X Ray Sources, Heao 1, Heao 2, Line Spectra, Sky Surveys (Astronomy), Stellar Luminosity, Stellar Spectrophotometry

Scientific paper

The paper discusses a star with RS CVn-type characteristics discovered as a result of an accurate X-ray location. The RS CVn binaries have been found to be a new class of soft X-ray sources from the HEAO 1 low energy sky survey. The source was detected at energies below 1 keV and evidence is presented for variability on time scales of approximately 1 day. The strong soft X-ray source was observed at a position consistent with 2A1052+606 and the X-ray light curve shows that the source underwent a strong soft X-ray flare. Subsequent spectrophotometry revealed variable H(alpha) and possibly CaII H,K emission which strongly supports its classification as an RS CVn system.

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