The polarization and nuclear structure of the broad absorption line QSO CSO 755

Details The polarization and nuclear structure of the broad absorption line QSO CSO 755 The polarization and nuclear structure of the broad absorption line QSO CSO 755

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...434l..47g&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 434, no. 2, p. L47-L50

Astronomy and Astrophysics

Astrophysics

41

Absorption Spectra, Line Spectra, Linear Polarization, Nuclear Structure, Quasars, Astronomical Models, Electron Scattering, Power Spectra

Scientific paper

CSO 755 is a bright (V = 17), strongly polarized (PV = 3.9%) broad absorption line quasar (BALQSO) which has shown no evidence for polarimetric variability over a baseline of 3.5 yr. As such, it provides an ideal opportunity for probing the structure and origin of polarization in BALQSOs. A strongly polarized continuum and unpolarized emission lines indicate that the polarization of CSO 755 arises by scattering very near the central source. Either dust grains or spectrally neutral scattering particles like electrons are viable; the latter case requires an additional source of continuum dilution.

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