... For cases of near perfect alignment, i.e. when the background quasar is almost directly behind the foreground galaxy, gravitational lensing can cause the quasar to be split into multiple images. ...
... Subject headings: quasars:general --- quasars:emission lines -- 4 -- 1. ... quasar spectra are generally believed to be generated in a large number of small gas ... properties are largely similar from quasar to quasar, the observed spectral energy ...
... Since the discovery of a joint Xray/UV absorber in an `Xray quiet' quasar 3C351, consistent properties of UV and Xray absorbers have been noted in a `red' quasar 3C212 (Mathur 1994), and in the variable Seyfert galaxy NGC5548 (Mathur et al 1995). ...
... They could consist of type 2 quasars (Webster et al. 1995) or red quasars (e.g., Kim ... quasars have BРR < 1 (i.e., below the horizontal dotted line), whereas the absorbed ...
... quasars (two-point correlation functions) indicate that the bias of quasars relative ... quasars with a close (<1 Mpc) quasar companion at comparable optical luminosity ...
... could consist of type 2 quasars (Webster et al. 1995) or red quasars (e.g., Kim and ... and galaxies, while absorbed, red quasars or type 2 quasars would fall in the upper ...
... Spin is crucially linked to many exciting frontiers of astrophysics including gravitational wave astronomy, quasar and stellar mass black hole jets, the evolution of super-massive black holes, and possibly gamma-ray bursts. ...