The Subaru Seminar is
usually held in Room 104 of the Hilo Base Facility, adjacent
to the main lobby. Everyone is welcome to attend. If you are
interested in giving a seminar, please contact Subaru seminar organizers
(Tae-Soo Pyo, Sherry Yeh, Nagayoshi Ohashi)
by email : sseminar_at_subaru.naoj.org (please change"_at" to @).
December 26, Friday, 11:00 am in 104
" Subaru Wide-Field AGN Survey (SWANS) with HSC "
Quasars are extremely luminous objects, whose enormous radiative
energy is powered by supermassive black holes (SMBHs). The
mass of SMBHs sometimes reaches up to 10^10 M_sun, but its
formation and evolution are still unclear. Thanks to SDSS and recent
NIR wide surveys such as UKIDSS and VIKING, our discoveries of
quasars reach at z~7. Interestingly, the discovered quasars at z>6
look to be already "matured"; their SMBH mass exceeds 10^9
M_sun, and the inferred metallicity is already higher than the solar
metallicity. Deeper quasar surveys are definitely needed to assess
quasars in their growing-up phase and to tackle the physics of the
We are now promoting a new quasar survey using Hyper Suprime
Cam (HSC) with numerous AGN researchers in Japan, Princeton,
and Taiwan, under the Subaru Strategic Program (SSP) consortium.
We have already found photometric candidates of less-luminous
quasars (than SDSS quasars) at z~6-7. The combination of the
HSC-SSP data and the WISE all-sky survey data brought us a
unique sample of heavily obscured AGNs at z~2 (Toba et al., to be
submitted soon). For theoretical interpretations of the HSC-SSP
outcomes, we are preparing a new quasar mock catalog based on
the AGN semi-analytic model (Enoki et al. 2014) and on N-body
simulations with a huge volume.
In this seminar, I would like to review some recent results of our
HSC-SSP quasar survey and show our future prospects, including
possible new collaborative works with various newcomers.
Seminars are also held at JAC,