Low Resolution Infrared Spectroscopy of Polars

Details Low Resolution Infrared Spectroscopy of Polars Low Resolution Infrared Spectroscopy of Polars

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.7018j&link_type=abstract

American Astronomical Society Meeting 207, #70.18; Bulletin of the American Astronomical Society, Vol. 37, p.1276

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Polars are cataclysmic variables where the white dwarf primary is highly magnetic, with fields in excess of 8 MG. The magnetic field funnels the accretion stream from the late-type star along the field lines and onto the magnetic pole of the white dwarf. The material as it spirals in generates cyclotron emission, which can be detected as a series of ``humps" in the spectra. For field strengths below 40 MG, these humps can be observed in the near infrared. We present phase-resolved infrared spectra obtained at IRTF of several polars and discuss their magnetic fields.

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