Possible detection of TeV gamma rays from AM Herculis

Details Possible detection of TeV gamma rays from AM Herculis Possible detection of TeV gamma rays from AM Herculis

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...369..475b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 369, March 10, 1991, p. 475-478.

Astronomy and Astrophysics

Astronomy

27

Binary Stars, Circular Polarization, Gamma Ray Astronomy, Magnetic Stars, White Dwarf Stars, Phase Modulation, Polarized Light

Scientific paper

This paper reports a possible detection of TeV gamma rays from the magnetic white dwarf binary system AM Herculis, with a phase-averaged flux of (5.6 + or - 2.1) x 10 to the -11th photons/sq cm per sec at energies above 2 x 10 to the 12th eV. The gamma-ray light curve exhibits two broad emission peaks at magnetic phases around (0.1 + or - 0.2) and (0.6 + or - 0.2) and closely matches in shape the phase modulation of circularly polarized light emitted by the source.

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