Other
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.0616g&link_type=abstract
American Astronomical Society Meeting 204, #06.16; Bulletin of the American Astronomical Society, Vol. 36, p.982
Other
Scientific paper
We conducted a VLA survey of 9 magnetic cataclysmic variable stars (MCVs), in October 2003, with the aim of constraining models for radio emission mechanisms. All observations were conducted in the VLA X-band, to maximize sensitivity. Typical integration times were 20 minutes. We obtained the first detection of AR UMa, the MCV with the highest known magnetic field (230 MG), at a flux density of 0.52 +/- 0.03 mJy. Surprisingly, the only radio selected CV, FIRST 1023+0038, was not detected. An upper-limit of 0.20 mJy (4 sigma) was obtained. The original radio MCV, AM Herculis, was detected with a flux density of 0.72 +/- 0.04 mJy, a level consistent with the previous detections of the quiescent radio emission. Typical (4 sigma) upper-limits of 0.12 mJy were obtained for other targets. We present an outline of the current state of modeling radio emission and discuss the implications of this work on understanding the radio characteristics of MCVs.
Gray Caroline
Mason Paul A.
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