Linear polarization of monochromatic oscillations in optical spectrum of the intermediate polar PQ Geminorum

Details Linear polarization of monochromatic oscillations in optical spectrum of the intermediate polar PQ Geminorum Linear polarization of monochromatic oscillations in optical spectrum of the intermediate polar PQ Geminorum

Jul 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...335..583s&link_type=abstract

Astronomy and Astrophysics, v.335, p.583-586 (1998)

Astronomy and Astrophysics

Astrophysics

3

Stars: Individual: Pq Gem= Re 0751+14, Stars: Magnetic Fields, Stars: Rotation, Stars: Oscillations, X-Rays: Stars

Scientific paper

We report the results of optical dynamic spectropolarimetry of the intermediate polar PQ Gem (RE 0751+14), which were obtained with the help of the linear polarization analyzer and the BTA scanner in a high time resolution mode (32 ms) at the 6 m telescope on November 19, 1996. Narrow-band spectral oscillations in the vicinity of the spin period (13.9 min) have been investigated. The dependence of the power of oscillations on the wavelengths (3800-5200 Angstroms, 1 Angstroms/channel) and periods of pulsations in the region 300-2000 s with a mean resolution along the period 10 s has been calculated. Power spectra have revealed strong (amplitude ~ 20%), polarized (dominating in one of the orthogonal polarizations), monochromatic (FWHM in power spectra 2-3 Angstroms) oscillations with periods of 13.3-15.2 min mainly in the profiles of emission lines. The strong dynamic linear polarization (70-80%) with the already detected strong dynamic circular polarization (60-90%) of the monochromatic oscillations make practically impossible any interpretation of the oscillations in the frame of conventional physics. Based on observations from Special Astrophysical Observatory of Russian Academy of Sciences, Russia.

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