Spitzer Space Telescope - General Observer Proposal #41021


Lower Luminosity AGNs at Cosmologically Interesting Redshifts: SEDs 
and Accretion Rates of z~0.36 Seyferts

Principal Investigator: Sarah Gallagher
           Institution: UCLA

     Technical Contact: Sarah Gallagher

Co-Investigators:

Tommaso Treu, UC Santa Barbara
Matthew Malkan, UCLA
Jong-Hak Woo, UC Santa Barbara
                           
Science Category: AGN/Quasars/Radio Galaxies
 Observing Modes: IRAC Mapping, MIPS Phot
  Hours Approved: 11.0

Abstract:
We propose a multiwavelength campaign to constrain the SEDs of Seyferts 
at z~0.36. This epoch, corresponding to a look back time of 4 Gyrs, 
is cosmologically interesting for studies of the coeval development 
of black holes and their host galaxy bulges. Our sample, comprising 24 
Seyferts, has unprecedented high quality Keck spectroscopy and HST 
imaging already invested to extract host galaxy bulge properties, 
estimate black hole masses, and separate nuclear and host optical 
luminosities. To supplement and extend this successful program, we 
request 93 ks of Chandra time (to measure the shape and power of the 
AGN-only X-ray continuum),11 hrs each of Spitzer and Gemini (to constrain 
the dust temperature), and 7 orbits of HST (to determine the nuclear 
luminosity for the final 7 objects).