SIMBAD references

2013ApJ...773L..10R - Astrophys. J., 773, L10 (2013/August-2)

Misalignment of the jet and the normal to the dusty torus in the broad absorption line QSO FIRST J155633.8+351758.

REYNOLDS C., PUNSLY B. and O'DEA C.P.

Abstract (from CDS):

We performed Very Long Baseline Array observations of the broad absorption line quasar FIRST J155633.8+351758, "the first radio loud BALQSO." Our observations at 15.3 GHz partially resolved a secondary component at position angle (P.A.) ~35°. We combine this determination of the radio jet projection on the sky plane, with the constraint that the jet is viewed within 14.°3 of the line of sight (as implied by the high variability brightness temperature) and with the P.A. of the optical/UV continuum polarization in order to study the quasar geometry. Within the context of the standard model, the data indicates a "dusty torus" (scattering surface) with a symmetry axis tilted relative to the accretion disk normal and a polar broad absorption line outflow aligned with the accretion disk normal. We compare this geometry to that indicated by the higher resolution radio data, brightness temperature, and optical/UV continuum polarization P.A. of a similar high optical polarization BALQSO, Mrk 231. A qualitatively similar geometry is found in these two polar BALQSOs; the continuum polarization is determined primarily by the tilt of the dusty torus.

Abstract Copyright: ∼

Journal keyword(s): quasars: absorption lines - quasars: general

Simbad objects: 4

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