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HiZ-GUNDAM
High-z Gamma-ray bursts for Unraveling the Dark Ages Mission

HiZ-GUNDAM WG 12/4
7 !5$ 6
Gravitational Wave Astronomy and Dark Ages Mission– GWAnDAM' " 2018 (2018/03/07 – 09) @ &# 1

Multi Messenger Astronomy & Time Domain Astronomy
z=1000z=12z=7z=6z=0.5z=0

Gamma-Ray Bursts
First Stars
Cosmic Reionization
Metal Production
Gravitational Wave
NS-NS, NS-BH, BH-BH
macronova/r-process
TeV/PeV neutrino
SNe Shock Breakout
Tidal DisruptionFast Radio Burstetc.
Stellar Super FlareGalactic Transients 22(21/4,.(GRB) %$
Long GRBs (T > 2 sec)3!& (M>40Msun)
3#&(energetic Hypernovae)
3E = 1050 – 1054 ergs
3Black Hole 5 +'-.
Short GRBs (T < 2 sec)3*20).&3(?)
3E = 1048 – 1051 ergs
3Black Hole 5 +'-. (?)

" 

3!"z = 1089z=7z=0138z i20
;O,%KO6C

Larson & Bromm (2001)z=7NVGHI<JOA'QUG9O !W"E<4 W/B@FABM)$KMHI=T&Nz > 7 OP< O0'<87<5+O^a[Y_dbO0'ML5.1:A =<h- g32 2020N?=IJD>< ePop-IIIf@SO*(MW
4#JBTOPXc`-]dZ\OR $ +#&%,2017

8./"')($#&$

*!$

1.7sec




~100
X

~100
!

0 5  !"20178#$ 

Ioka & Nakamura 20176

B( UAz09MZ-;W{20178"|}J@!!UMZUB(xH2(U:)

B(S #PQ840 U09
x nshcpyt<.U1Fx dryiavq8lyeiV$T@!!?*M~

qcukw^U &x +>C, x %+>U,3
E UHMNSUemvg_v`jtbyN+>TL\I

UB5U?*x r oufe]7/PQDY[XBQK5
x G6']= RO\UM~7

fk`ha^m\ipq_YgchYmR4(1) X ,QSU *' (GRB /SGRB PO) R#(2) - N  I21,N$ofZldnWV3/%(3) J0+P KJ1)KJUMKVr7QXjpb(4) !56QSU0+P /%# (erg/cm2/s)

12% of all sky

2% of all sky/%7][pk (()

21,R#8&9C=ADBGH?@:/%ejaZ]"
9@EA;>C<;F:3/%RToo late
Observation start/%7][pk (()*''.LTR7 (()
8

:CA$?D;=5)& *+(0.3  1 m ") 5

,3!90*+9/1%.7 *+(3  4 m ")( 5255
*+
(8 m "6><@B*+)3 418'#3&

9 320 mmMicro Pore Optics(Lobster Eye Optics) CMOS

240 mm

40 mm

40 mm
X   #

0.54 keV ( )#"&1.2  2$
'%!

100  10–10 erg/cm2/s(100( )10Lobster Eye Optics (Micro Pore Optics)

FocalImage Purchase fromPHOTONIS (France)
 Develop with
USHIO (Japan)

1/4 point focus
1/4 cross line (x 2)
1/4 diffuse

Artificial X-ray image
from ROSAT all-sky survey
11

55Fe Spectrum : GSENSE400BSI by Gpixel (@ Kanazawa Univ.)

Experimental Setup

Energy Spectrum of 55Fe
212 eV (FWHM)
Ka (5.90 keV) 189 eV (FWHM)
Kb (6.49 keV)LD
0.39 keVGSENSE400BSI• 2048 x 2048
• Pixel size: 11 um• Backside illuminated 0 degC single pixel event selection
 1 sec exposure/frame
12 Lyα  or 

AB Magnitude without absorption

3s confidence region

OpticsOffset Gregorian 30 cm
Aperture Size
30 cm
=  4 m 
Focal Length
183.5 cm
FF6.1
 
Field of View
34 x 34 arcmin2
Pixel Scale2 arcsec (assuming 1k x 1k)
Temperature
Telescope< 200 K Camera Optics<170 K Detector<80 KBand
0.5 – 0.9
0.9 – 1.5
1.5 – 2.0
2.0 – 2.5Band
0.5−0.9 µm
0.9−1.5 µm
1.5−2.0 µm2.0−2.5 µm
Limiting Mag.
21.3
20.9 mag
20.7
21.4 mag
21.3 mag
20.9
20.7mag(10, S/N=10)21.4
13
Detectors
HyViSiHgCdTeHgCdTeHgCdTe : : 115.3 kg (6 units)  : 74.1 kg SBD
: 1.6 kg (with antenna)

14

()#&'+$ (Iridium Short Burst Data)

3.2 cmIridium SBD(SBD 9603)

3.0 cmPacket Communication
Send, 340 byte
Receive, 270 byte
Delay, 1-3 min

3U  EGG ()#&  49 %(!& SBD  *#+% +"   > 50 krad
15

Expected Detection Rate (event/yr)
X-ray (left) and NIR (right)
sensitivity (erg/cm2/s)@ 100s exposure
FoV (str)
GRB (z>9) best model
GRB (z>9) lower limit
GW/SGRB prompt
GW/SGRB E.E.
GRB/SGRBLL GRBXRF
TDRSNSB
Stelar Flare
Direct collapse BH
Accretion inducedcollapse

Best case Worst case
1e-10

1e-10

1.2
40
15
<88~500>55060>5manya few

0.82610<55~300> 3.3
3340> 3.3
manya few

~10~6Pixel scale of point
sourceafterglow (z>9)
best model
afterglow (z>9)
lower limit
macronova
Supernovae
afterglow of
GRB/SGRB/XRF
Variable stars
Transit ofexoplanet

Best case Worst case
3x35x534

13 (*)

135 (*)

1340

1317

manymany

many

many

many

many

(*) Account for the worst casealso in the X-ray band.
16

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HiZ-GUNDAM >
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2018/01/29 :  '
2018/02/19 : K?QTCW,.X
2018/05/15 – 17 : K?QTC17

Frontier of the Early universe andthe extreme space-time

18