Theoretical quasar emission-line ratios. V - Balmer continuum emission

Abstract

view Abstract Citations (9) References (15) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Theoretical quasar emission-line ratios. V - Balmer continuum emission Puetter, R. C. ; Levan, P. D. Abstract Isothermal, isobaric models of quasar emission line regions are presented which include an improved treatment of radiative transfer in the bound-free continua, based on a generalization of frequency-integrated line transfer techniques and on the use of a probabilistic radiative transfer equation which explicitly distinguishes between the flux divergence coefficient and the photon escape probability. It is found that Balmer continuum emission can be obtained without compromising observed line ratios. It is also established that optically thin or thick Balmer continuum emission models with blended Fe II line are consistent with 4000-2000 A 'blue bump' observations, and that the improved radiative transfer treatment makes order-of-magnitude corrections to level populations and local cooling rates calculated with past techniques. Publication: The Astrophysical Journal Pub Date: September 1982 DOI: 10.1086/160231 Bibcode: 1982ApJ...260...44P Keywords: Balmer Series; Emission Spectra; Line Spectra; Quasars; Continuous Spectra; Radiative Transfer; Seyfert Galaxies; Astrophysics full text sources ADS | Related Materials (8) Part 1: 1981ApJ...243..381C Part 2: 1981ApJ...243..390C Part 3: 1981ApJ...248...82C Part 4: 1982ApJ...256..798C Part 5: 1981ApJ...251..446P Part 7: 1982ApJ...258...46P Part 8: 1985ApJ...290..394H Part 9: 1985ApJ...295..394P