VV Puppis - The soft X-ray machine

Details VV Puppis - The soft X-ray machine VV Puppis - The soft X-ray machine

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...279..785p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 279, April 15, 1984, p. 785-797.

Astronomy and Astrophysics

Astronomy

43

Binary Stars, Stellar Spectra, White Dwarf Stars, X Ray Astronomy, Energy Distribution, Light Curve, Stellar Luminosity, Ultraviolet Spectra, X Ray Stars

Scientific paper

The authors report X-ray and ultraviolet observations of the AM Herculis-type binary VV Puppis, which show it to be a spectacular source at soft X-ray energies (0.1 - 0.3 keV), but only weakly detected in hard X-rays and in the ultraviolet. The orbital light curves in soft and hard X-rays are in good agreement with the mean optical light curve, indicating that essentially all the accretion luminosity originates from a small region (⪉100 km) near one of the magnetic poles of the white dwarf. The total energy distribution reveals four distinct components, peaking at infrared, optical/UV, soft X-ray, and hard X-ray energies.

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