HST -- Ground-based Spectrophotometry of a Quasar Sample: Emission Line Profiles, Radio Emission, and Orientation?
Session 19 -- Multiwavelength AGN Studies
Display presentation, Monday, 9, 1995, 9:20am - 6:30pm

[19.01] HST -- Ground-based Spectrophotometry of a Quasar Sample: Emission Line Profiles, Radio Emission, and Orientation?

Beverley J.Wills, M.S.Brotherton, D.Wills, K.L.Thompson (U.Tx at Austin), H.Netzer (Tel Aviv U.), J.A.Baldwin (CTIO), G.J.Ferland (U.Ky), R.F.Carswell (IOA), M.Han (U.Wisconsin)

We are carrying out quasi-simultaneous multiwavelength spectrophotometry from below Ly $\alpha$ to beyond H $\beta$ for a sample of $\sim 50$\ radio-loud quasars with $z \sim 0.3$\ to 1.3. The aim is to understand the structure and physics of the nuclear environment -- through investigations of the Baldwin effect, comparison of line profiles and ratios, continuum shape, and X-ray and radio properties. In particular the sample is selected with constrained radio lobe luminosity, but with a wide range in the ratio of radio core to lobe flux density. We use the latter ratio as a prime indicator of orientation of the central engine, thus enabling us to investigate angle dependence of kinematics, optical depth, and anisotropy of the broad-band continuum. Observations for our sample are now about 75\% complete. We will present some results relating emission line profiles to radio emission, and to orientation of the central engine.