New magnetic cataclysmic variables from the Sloan Digital Sky Survey

Gary D. Schmidt; Paul S. Smith; Paula Szkody; Scott F. Anderson

doi:10.1086/528927

New magnetic cataclysmic variables from the Sloan Digital Sky Survey

Gary D. Schmidt, Paul S. Smith, Paula Szkody, Scott F. Anderson

Steward Observatory

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11 Scopus citations

Abstract

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)
Pages (from-to)	160-164
Number of pages	5
Journal	Publications of the Astronomical Society of the Pacific
Volume	120
Issue number	864
DOIs	https://doi.org/10.1086/528927
State	Published - Feb 2008

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/528927

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title = "New magnetic cataclysmic variables from the Sloan Digital Sky Survey",

abstract = "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.",

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AU - Smith, Paul S.

AU - Szkody, Paula

AU - Anderson, Scott F.

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AB - 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.

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New magnetic cataclysmic variables from the Sloan Digital Sky Survey

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