Photometry of AM Herculis - A slow optical pulsar

Details Photometry of AM Herculis - A slow optical pulsar Photometry of AM Herculis - A slow optical pulsar

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...219..597p&link_type=abstract

Astrophysical Journal, Part 1, vol. 219, Jan. 15, 1978, p. 597-604.

Astronomy and Astrophysics

Astrophysics

57

Binary Stars, Pulsars, Stellar Spectrophotometry, X Ray Stars, Circular Polarization, Graphs (Charts), Light Curve, Optical Polarization, Stellar Models

Scientific paper

Multicolor photometry of the X-ray binary AM Her suggests that the red component of the optical flux is closely related to the source of optical circular polarization in the system. It is concluded from the periodic modulation of flux in the U through R bands, which is particularly well-defined when plotted as color curves, that the primary and secondary minima are neither eclipses by a secondary star nor eclipses by a hot spot. It is suggested that the primary minimum in the visual light curve is the eclipse of a region of intense optical emission in the magnetic field near the surface of a degenerate dwarf by that dwarf itself.

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