Abstract

SULENTIC, J. W. et al. Low Redshift BAL QSOS in the Eigenvector 1 Context. Rev. mex. astron. astrofis [online]. 2006, vol.42, n.1, pp.23-39. ISSN 0185-1101.

We attempt to characterize the geometry of Broad Absorption Line (BAL) QSOs by studying a low redshift sample of 12 sources. We find that the majority of these sources are Population A quasars as defined in Sulentic et al. (2000a, broad Hβ FWHM ≤ 4000 km s^-1). A possible correlation between terminal velocity and absolute V magnitude suggests that the bolometric luminosity to black hole mass ratio L_bol/M_BH is a governing factor with classical BAL sources showing the highest values. CIVλ1549 emission in classical BAL sources shows a profile blueshift that supports a disk wind/outflow scenario with a half opening angle of ≲ 50°. Observation of "secondary" mini-BAL features in the CIVλ1549 emission profile motivates us to model BALs with an additional component that may be involved with the BLR outflow and co-axial with the accretion disk.

Keywords : GALAXIES [ACTIVE]; QUASARS [ABSORPTION LINES]; QUASARS [EMISSION LINES].

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