Other
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...272l..55e&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 272, Sept. 15, 1983, p. L55-L59.
Other
14
Balmer Series, Emission Spectra, Stellar Spectra, Variable Stars, Binary Stars, Electron Density (Concentration), Electron Energy, Gas Density, H Lines, Hydrogen
Scientific paper
Balmer emission lines from cataclysmic variables often have nearly equal intensities rather than the rapid decrement predicted by simple nebular theory. Traditionally, this has been interpreted in terms of local thermodydnamic equilibrium emission from a dense gas with small volume located just above the accretion disk. It is shown that the intense radiation field within a close binary system can affect excited state populations and optical emission in ways which allow a relatively low density gas to closely mimic the high density situation. In at least one case, the old nova V603 Aql, the emitting gas has a low density and nearly fills the orbital plane of the system. If this is characteristic of other systems, then the determination of orbital parameters and masses of cataclysmic variables from emission line radial velocities, as well as the prediction of soft X-ray emission from accreting binaries, will be affected.
Elitzur Moshe
Ferland Gary J.
Mathews Geoffrey S.
Shields Gregory A.
No associations
LandOfFree
Stimulated emission and the flat Balmer decrements of cataclysmic variable stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stimulated emission and the flat Balmer decrements of cataclysmic variable stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stimulated emission and the flat Balmer decrements of cataclysmic variable stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1588679