Photometry of intermediate polars AO PSC and V 1223 SGR

Details Photometry of intermediate polars AO PSC and V 1223 SGR Photometry of intermediate polars AO PSC and V 1223 SGR

Dec 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.117..287p&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 117, no. 2, Dec. 1985, p. 287-292.

Astronomy and Astrophysics

Astrophysics

Astronomical Photometry, Cataclysmic Variables, Light Curve, Pulsars, White Dwarf Stars

Scientific paper

Optical photometric observations of the cataclysmic variables, AO Psc and V 1223 Sgr; both of which are believed to contain slowly-rotating white-dwarf pulsars, are presented. These objects belong to the new class of intermediate polars in which the magnetized-white-dwarf rotation period lies in between synchronous and extremely fast rotation periods. The observations reported here were carried out from the Kavalur Observatory using a 1 m reflector. High-time resolution light curves depicting a rich variety of flicker phenomena are presented. Results of a periodic analysis to search for coherent periodic modulations in the light curves are also presented. The optical pulse profile of AO Psc has been derived, and its similarities to the X-ray pulse profile are pointed out.

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