A search for periodicities in the X-ray emission from cataclysmic variables

Details A search for periodicities in the X-ray emission from cataclysmic variables A search for periodicities in the X-ray emission from cataclysmic variables

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...370..330e&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 370, March 20, 1991, p. 330-340.

Astronomy and Astrophysics

Astronomy

53

Cataclysmic Variables, Dwarf Novae, X Ray Binaries, X Ray Sources, Periodic Variations, Power Spectra, Sky Surveys (Astronomy), Stellar Spectra, White Dwarf Stars

Scientific paper

Results are reported from a search for periodicities in the X-ray emission from cataclysmic variables observed with the Einstein Observatory's IPC at 0.16-3.5 keV and 0.01-2.5 Hz. Power spectra are shown for 51 observations of 31 systems, and upper limits are derived to the pulse fractions of signals that are not detected. The majority of systems show no coherent periodicities in their X-ray emission, which is consistent with a model in which the X-rays are produced in a disk/white-dwarf boundary layer.

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