Variable optical flickering in Cygnus X-2

Details Variable optical flickering in Cygnus X-2 Variable optical flickering in Cygnus X-2

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....67..287i&link_type=abstract

Astronomy and Astrophysics, vol. 67, no. 2, July 1978, p. 287-289. Research supported by the Universite de Paris VII; Centre Na

Astronomy and Astrophysics

Astronomy

4

Flicker, Stellar Spectrophotometry, X Ray Astronomy, Power Spectra, Stellar Luminosity, Stellar Spectra

Scientific paper

High-speed photometry of the Cygnus X-2 optical candidate has revealed
the existence of low-level (0.1-0.2 percent) flickering activity on one
night when the object was faint; this activity was not present on the
following night, the object being at the same flux level. A peak at P
equals 10.9 min in the power spectrum of the first night is significant.

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