The orbital variations of the UV spectrum of the old nova HR Del

Details The orbital variations of the UV spectrum of the old nova HR Del The orbital variations of the UV spectrum of the old nova HR Del

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982esasp.176..191a&link_type=abstract

In ESA 3rd European IUE Conf. p 191-192 (SEE N83-11889 02-88)

Physics

Accretion Disks, Novae, Orbital Mechanics, Periodic Variations, Stellar Motions, Ultraviolet Spectra, Resonance Lines, Stellar Luminosity, Stellar Mass Accretion, Stellar Occultation, Stellar Winds

Scientific paper

The form of the UV continuum of HR Del is discussed. The IUE spectra indicate the presence of a power law continuum, close to the classical accretion disk law of Lynden-Bell. A very high accretion rate of 0.00001 N/yr is found for the disk. Orbital variations of the continuum and emission line fluxes during a shift in 1980, can be interpreted as due to occultation of central regions of the disk by material associated with the outer edge of the disk.

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