Spectrophotometric estimate of electron density in rapidly rotating disks

Details Spectrophotometric estimate of electron density in rapidly rotating disks Spectrophotometric estimate of electron density in rapidly rotating disks

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...226..427p&link_type=abstract

Astrophysical Journal, Part 1, vol. 226, Dec. 1, 1978, p. 427-429.

Astronomy and Astrophysics

Astrophysics

Balmer Series, Electron Density (Concentration), Novae, Stellar Mass Accretion, Stellar Spectrophotometry, Absorption Spectra, Binary Stars, Dwarf Stars, Rotating Disks

Scientific paper

A technique is described for estimating electron density from spectrophotometry of the Balmer line absorption at 3640-4190 A. The estimate is insensitive to macroscopic Doppler broadening. A parameter is defined and calibrated with published spectra. Application is made to the analysis of rapidly rotating accretion disks in dwarf-nova binary systems. Application to published spectra of SS Cygni indicates an electron density of about 5 x 10 to the 14th per cu cm in the region of absorption-line formation.

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