Oral Presentation

The Synergy of the SCUBA-2 Imaging Exploration of the Epoch of Reionization (SIXER) with the HSC-AGN survey

Author(s): Takuma Izumi (The University of Tokyo), Tohru Nagao (Ehime University), Yoichi Tamura (The University of Tokyo), Kotaro Kohno (The University of Tokyo), and the SIXER collaborators

Presenter: Takuma Izumi (The University of Tokyo)

We are preparing the SCUBA-2 Imaging Exploration of the Epoch of Reionization (SIXER) at 850 um
by using the SCUBA-2, a 10000 pixel submillimeter bolometer camera, on the JCMT.
SIXER aims at obtaining 850 um maps covering 58 deg^2 on the sky at a sensitivity of 4 mJy/beam,
which will reveal > 300 bright submillimeter sources with 850 um flux densities of > 20 mJy.
Some of the HSC-AGN fields are included in this survey.
Since the confusion limited sensitivities of Herschel/SPIRE-bands are comparable to the SIXER sensitivity,
all SIXER sources at 0 < z < 4 can be detected in the SPIRE-bands, while z > 4 SIXER sources will drop out in the SPIRE-bands.

From this perspective, the SIXER survey, if combined with the unprecedented sample of ~1000 z > 4 QSOs
that will be obtained by the on-going HSC-AGN survey, will provide us a unique opportunity
to investigate galactic scale obscured star formation in QSO-hosts at high redshift
by individual detections and stacking analysis at 850 um.
Especially, we are interested in galaxies hosting low-luminosity QSOs.
Exploring such populations is inevitable to investigate a coevolution relation of galaxies and supermassive black holes
at high redshift, which is currently biased toward high luminosity populations.