(Proposal ID) S16A-056

(PI) Matsuoka, Yoshiki

(Proposal Title)
Subaru Near-Field Exploration of Quasar Feedback

(Abstract)
Feedback from mass-accreting supermassive black holes (SMBHs) is now a 
standard ingredient in galaxy formation models. It is seen as necessary 
for prohibiting overgrowth of galaxy masses and for establishing the observed 
SMBH-bulge correlations. In the past several years, we have demonstrated that 
powerful ionized gas winds are a ubiquitous feature in luminous obscured 
quasars at intermediate to high redshifts. Now as a step forward, we aim to 
explore the feedback processes in greater detail by looking at closer targets,
 with various diagnostic emission lines on sub-kiloparsec spatial scales; this 
will be an excellent benchmark for higher-z studies. Here we propose an 
integral field unit spectroscopy of five luminous obscured quasars at z < 0.15 
with Subaru Kyoto3DII + AO188. We will observe the spatially-resolved [O I], 
Halpha, [N II], and [S II] emission lines on sub-galactic and galaxy-wide 
scales (400 pc resolution and 14 kpc field-of-view) to explore the spatial 
extents and kinematics of the neutral and ionized gas, as well as the 
distributions of gas density and ionization sources, and examine the presence 
and the effects of quasar feedback in the host galaxies. The data will be 
further complemented with the coordinated Submillimeter Array (SMA) 
observations.