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 keV. 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.
|Original language||English (US)|
|Number of pages||5|
|Journal||Publications of the Astronomical Society of the Pacific|
|State||Published - Feb 2008|
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science