Further observations of nonperiodic optical flickering in HZ Herculis

Details Further observations of nonperiodic optical flickering in HZ Herculis Further observations of nonperiodic optical flickering in HZ Herculis

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978pasp...90..149v&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 90, Apr.-May 1978, p. 149-153. Research supported by the Research Corp.;

Astronomy and Astrophysics

Astronomy

1

Astronomical Photometry, Eclipsing Binary Stars, Hercules Nova, Stellar Luminosity, Variable Stars, X Ray Stars, Carbon, Flicker, Helium, Photometers, Photomultiplier Tubes, Scintillation, X Ray Astronomy

Scientific paper

High-speed photometric observations of the HZ Her/Her X-1 system show that nonperiodic optical flickering is present during both the ON and OFF portions of the 35-day cycle. The optical flickering is broad band and not confined to emission lines. There is a weak correlation between the amplitude of the flickering and orbital phase but efforts to identify the source of the flickering were unsuccessful.

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