New Magnetic Cataclysmic Variables from the Sloan Digital Sky Survey

Details New Magnetic Cataclysmic Variables from the Sloan Digital Sky Survey New Magnetic Cataclysmic Variables from the Sloan Digital Sky Survey

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pasp..120..160s&link_type=abstract

Publications of the Astronomical Society of the Pacific, Volume 120, issue 864, pp.160-164

Astronomy and Astrophysics

Astronomy

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Scientific paper

Two new faint (g˜18 22) cataclysmic variables (CVs) from the Sloan Digital Sky Survey (SDSS) are confirmed as being strongly magnetic systems from time-resolved optical spectroscopy and spectropolarimetry. SDSS J0921+2038 shows circular polarization that varies between negative and positive values, and at one phase displays a series of overlapping cyclotron emission peaks that characterize a magnetic plasma with B=32 MG and kT≈10. The polarization of SDSS J1333+1437 reaches V/I=15% and its spectrum displays the blue continuum and strong H, He emission-line component often found in the polar class of magnetic CV. Phasing of photometry, polarimetry, and radial velocity measurements for SDSS J1333+1437 indicates a (spin/orbit) period of 2.2±0.1 hr.

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