On the Polarisation of Resonantly Scattered Emission Lines in Active Galactic Nuclei

Details On the Polarisation of Resonantly Scattered Emission Lines in Active Galactic Nuclei On the Polarisation of Resonantly Scattered Emission Lines in Active Galactic Nuclei

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aas...181.7102l&link_type=abstract

American Astronomical Society, 181st AAS Meeting, #71.02; Bulletin of the American Astronomical Society, Vol. 24, p.1233

Astronomy and Astrophysics

Astronomy

Scientific paper

Resonantly scattered radiation in an AGN broad emission line cloud will be polarised when the radiation field is anisotropic. Source function and absorption coefficients have been computed for a variety of transitions and it is argued that the degree of polarisation should be correlated with the change in the electronic state. Both collisionally and radiatively- driven population of the ground sublevels are considered, the former being appropriate for semi-forbidden lines and the latter for permitted lines. Integrated intrinsic polarisations are computed for a variety of assumed cloud distribution using a Monte Carlo procedure.

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