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Subaru Wide-Field AGN Survey
with Hyper Suprime Cam
Tohru Nagao
Research Center for Space and Cosmic Evolution
Ehime University
HSC special session in the ASJ Meeting
21 March 2015, Osaka Univ.
Quasars, powered by supermassive black holes
The mass of SMBHs reaches up to 1010 Msun,
but nobody knows how SMBHs formed and evolved.
Why new quasar survey?
Paris+14
SDSS and BOSS have already
discovered numerous quasars
166,583 quasars in DR10
SDSS quasar luminosity function (QLF)
Ross+13
“Luminosity dependent” evolution of the QLF
SDSS
limit
Ross+13
Number density evolution of SDSS III
quasars. Different colors denote
different luminosity ranges. See also,
e.g., Croom et al. (2009); Ikeda, Nagao,
et al. (2011, 2012).
More luminous SDSS
quasars show the peak of
their number density
evolution at higher redshifts.
Luminosity-dependent
density evolution of quasars,
that may be consistent to
the picture of the so-called
downsizing evolution.
Caveat: the number density
is not clear at higher z &
lower luminosity. Downsizing
really holds also at higher z?
Current surveys are NOT enough: at z~7
Only 4 quasars at 6.6<z<7.1,
from UKIDSS & VIKING surveys
z=7.08
NEW Surprises:
Mortlock+11
z=6.89
z=6.75
z=6.60
  MBH (1-2)x109 Msun
  Strong metallic emission lines
but based on small statistics...
and maybe we are missing
growing-up low-MBH quasars
due to the limited sensitivity...
and we have NO quasars at z>7.1
Venemans+13
Quasar survey with HSC
from the HSC-SSP proposal
●: HSC-wide
○: HSC-deep
A caveat: simple color selections cannot find quasars
that are fainter than MUV -22.5, since LBGs dominate
the selected objects.  variability selection in HSC-deep
Registered 38 AGN-related HSC projects
01)
02)
03)
04)
05)
06)
07)
08)
09)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
Checking the quality of the photometry for quasar target selection; Strauss+
The HSC colors of known quasars; Strauss+
Photometric redshifts for AGNs/QSOs; Tanaka+
Quasar selection by cross-matching with wide-field X-ray data; Terashima+
Search for peculiar AGN populations by combining HSC and X-ray; Terashima+
X-ray stacking analysis of star forming galaxies; K.Matsuoka+
Search for extreme red quasars using HSC and mid-infrared data; Aoki+
A search for optical counterparts of AKARI/WISE all sky survey sources; Goto+
Search for growing-up BHs in the dust obscured galaxies at z 2; Toba+
WISE host galaxies; Greene+
High-z galaxy, QSO and supernova science with SPLASH; Silverman+
Evolution of radio galaxies in SDSS stripe 82; Lin+
Cross-matching the HSC-wide optical and FIRST radio data; Nagao+
Investigation of rest-frame FIR to submm properties of z=6-7 QSOs; Izumi+
Search for dual-NB emitters at high redshifts; Nagao+
HSC broad-band [OIII] selection of AGN ionized bubbles; Sun+
Properties of variability-selected AGNs; Morokuma+
Long-term variability of SDSS quasars; Kokubo+
Variability in nuclear activity of SDSS active and inactive galaxies; Kawaguchi+
Toward variable search for faint AGN in high-z less-massive galaxies; Yamada+
Registered 38 AGN-related HSC projects
21)
22)
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24)
25)
26)
27)
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29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
(contd.)
Search for lensed QSOs in the HSC survey: based on color, morphology; Coupon+
Search for lensed QSOs in the HSC survey: candidate classification; Suyu+
Search for quasars at z>6; Y.Matsuoka+
Reionization probed by high-z quasars; Kashikawa+
Supermassive blackhole masses and Eddington ratios of z=6-7 QSOs; Imanishi+
Environment of QSOs at z>6; Foucaud+
Chemical evolution of quasars at z>6; Asami+
Exploring the nature of Galactic brown dwarfs; Y.Matsuoka+
Quasar luminosity function at fainter side at z 4-5; Ikeda+
Locating QSOs among luminous g-dropout LBGs at z 4; Akiyama+
The environment of quasars at intermediate redshifts; Strauss+
Metallicity of low-luminosity AGNs at 3<z<5; K.Matsuoka+
Mapping large scale structures and tracing galaxy evolution with a combined
technique of multi-color selection and narrow-band imaging; Kodama+
Multi-band photometric properties of quasar host galaxies; Y.Matsuoka+
Systematic survey of cold dust disk in AGN galaxies; Okabe+
Investigating HSC-detected galaxies around SDSS QSOs with DLAs; Ogura+
Exploring the physical interplay between QSO absorbers and galaxies; More+
SNAWS: a new semi-analytic galaxy and SMBH/AGN formation model; Enoki+
HSC-AGN WG activities
(Top) 14-16 Jan. 2014
@ASIAA, Taipei
(Right) 18-20 Dec. 2014
@ASIAA, Taipei
Regular skype meetings
by monthly
reporting progresses in each project
discussing proposals, publications, ...
annual WG meetings
#1:
#2:
#3:
#4:
#5:
#6:
#7:
Oct. 2009 @Ehime
Sep. 2010 @Sendai
Nov. 2011 @Kyoto
Dec. 2012 @Ehime
Jan. 2014 @Taipei
Dec. 2014 @Taipei
Nov. 2015 @Kagoshima
Quasar survey with HSC at z ~ 6-7: Initial trials
from Y. Matsuoka-san s
presentation file
Onoue+ (S38a), from 11:06 today!
Results of HSC “Dusty Obscured Galaxies”
Toba+ (B11a), just a?er this talk!
Toba, TN, et al., subm.
Acknowledgements to the HSC-AGN members
M.Akiyama (Tohoku), K.Aoki (Subaru), N.Asami (Japan Prof. Sch. of Edu.),
J.Coupon (Geneva/ASIAA), M.Enoki (TKU), S.Foucaud (NTNU/ASIAA), T.Goto
(NTHU), J.Greene (Princeton), T.Hashimoto (NAOJ), Y.Hashimoto (NTNU),
H.Ikeda (ASIAA/Ehime), M.Imanishi (Subaru), K.Imase (GUAS/NAOJ), N.Inada
(Nara Collage of Tech.), T.Ishiyama (Tsukuba), Y.Ishizaki (GUAS/NAOJ),
K.Iwasawa (Barcelona), N.Kashikawa (NAOJ), T.Kawaguchi (NAOJ), N.Kawakatsu
(Kure Collage of Tech.), I.Kayo (Toho), M.A.R.Kobayashi (Ehime), M.Kokubo
(Tokyo), S.Kouzuma (Chukyo), Y.Lin (ASIAA), K.Matsuoka (Kyoto), Y.Matsuoka
(Princeton/NAOJ), T.Misawa (Shinshu), T.Morokuma (Tokyo), T.Murayama
(Tohoku), T.Nagao (Ehime), T.Nakagawa (ISAS), M.Nagashima (Bunkyo), M.Niida
(Ehime), M.Nomura (NAOJ), K.Ogura (Ehime), M.Oguri (Tokyo), K.Ohsuga (NAOJ),
Y.Ohyama (ASIAA), N.Oi (ISAS), M.Onoue (GUAS/NAOJ), T.Oogi (Bunkyo),
S.Oyabu (Nagoya), T.Saitoh (ELSI), H.Sameshima (ISAS), Y.Shirasaki (NAOJ),
J.Silverman (IPMU), M.Strauss (Princeton), A.Sun (Princeton), S.Suyu (ASIAA),
M.Tanaka (NAOJ), Y.Taniguchi (Ehime), Y.Terashima (Ehime), Y.Toba (Ehime),
Y.Ueda (Kyoto), M.Umemura (Tsukuba), Y.Urata (NCU), K.Wada (Kagoshima),
A.Wagner (Tsukuba), A.Yonehara (Kyoto Sangyo)
Green: Taiwan-based astronomers
Blue: Princeton-based astronomers
Orange: Theoretical astronomers
Your parFcipaFon highly WELCOME !!