Pulsed radiation from hot spots on accreting white dwarfs

Details Pulsed radiation from hot spots on accreting white dwarfs Pulsed radiation from hot spots on accreting white dwarfs

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....54...85p&link_type=abstract

Astronomy and Astrophysics, vol. 54, no. 1, Jan. 1977, p. 85-91.

Astronomy and Astrophysics

Astrophysics

1

Companion Stars, Pulsed Radiation, Stellar Magnetic Fields, Ultraviolet Radiation, White Dwarf Stars, Color, Giant Stars, Interstellar Matter, Mass Transfer, Optical Properties, Stellar Winds, Variable Stars

Scientific paper

Hot spots on accreting white dwarfs with magnetic fields are investigated. It is found that various loss mechanisms do not destroy the accretion spots and that pulsed satellite ultraviolet radiation will be emitted as the dwarf rotates. This pulsed ultraviolet should be observable from dwarf companions near giant stars undergoing mass loss by stellar wind and from slow moving dwarfs accreting from the interstellar medium. For the latter case, dwarfs in the Hyades are most promising and, in addition, optical color variations from these dwarfs should be observable.

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