Leipski, C.; Haas, M.; Willner, Steven P.; Ashby, Matthew L. N.; Wilkes, Belinda J.; Fazio, Giovanni G.; Antonucci, R.; Barthel, P.; Chini, R.; Siebenmorgen, R.; Ogle, P.; Heymann, F.
(2010)
Using the Spitzer Space Telescope, we have obtained rest-frame 9-16 ?m spectra of 11 quasars and 9 radio galaxies from the 3CRR catalog at redshifts 1.0 <SUB>9.7?m</SUB> = 1.1) whereas the mean quasar spectrum shows silicates ...
