jtpf japanese terrestrial planet finder jtpf japanese terrestrial planet finder m. tamura (naoj)...
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JTPFJapanese Terrestrial Planet
Finder
JTPFJapanese Terrestrial Planet
FinderM. Tamura (NAOJ)
JTPF Working Group
TPF-C coronagraph WS 2006.9.28 15:15-15:30 (15 min)
Exoplanet/Disk Exploration Approaches
in Japan ~2014
1. Indirect detection
of exoplanetsDoppler
(N2K survey)&
Transitongoing
SPICA 3.5m 2015?
AKARI 0.7m 2006
2B. Disk evolution& Exo-zodi
- disk late stage- spectroscopy
3. Spectroscopy of disks & outer planets
2006
Subaru 8.2m1999-
Subaru/HiCIAO/AO188 & ExAO2007-
~2018
JTPF 3.5m 2018?
4. Direct observations of Earth-like
planets
2A. Direct imaging of protoplanetary/debris disks & young massive planets
ongoing and near-future
Ground
Space
ELT/instrument?2016?
JTPF/High Contrast Space Telescope
Tele-scope
3.5m off-axis single aperture
Wave-length
optical and near-IR( λ0.5micron 、 λλ0.2-5micron)
w/ limited UV capability
Launch ~2018
Lifetime 5-10 yr
Orbit Sun-Earth L2
Instru-ments
Opt-NIR coronagraph
Wide-field NIR/Opt instruments
TBD: UV spectrometer
JTPF/HCST makes full use of SPICA bus system with an optimization to shorter wavelengths.
At present, an optical high contrast space telescopewhich realizes clean and stable images is under main discussions for the JTPF architecture.
○=Earth at 8pc
Subaru
ETL
HCSTJWST
Total FOV ~ 15’
JTPF formality and collaboration basis
Project officially approved both by NAOJ and ISASNAOJ/NINS: from April 2005, Phase A
project approved, starting budget from MEXT Grant-in-Aids, 9 staff (PI: Tamura)
ISAS/JAXA: from 2002, Working Group approved by the ISAS Science Steering Committee, ~40 members (PI: Shibai)
Discussions have been made among both astronomy and planetary communities in Japan, and regarded one of the next possible programs at OPTICAL-IR (others are SPICA, ELT, JASMINE)
JTPF formality and collaboration basis
Original mission? Collaborations? Which areas?Japanese-lead JTPF is probably after SPICA (3.5m,
MIR-FIR, ~2015) mission Coronagraph experience
Subaru telescope NIR coronagraph (CIAO, HiCIAO)SPICA MIR coronagraph (Enya, Abe, Tanaka)
Abe's talkVarious coronagraph R&D (Nishikawa, Baba, Abe, Tavrov)
Nishikawa's talk A wide-field option (Subaru prime-focus camera team,
CCD)
Interferometer experienceSPICA cooler (12mW@1.7K)SPICA mirrors (C/SiC)Optical interferometer (MIRA at NAOJ, Nishikawa)Balloon FIR interferometer experiments (FITE by Shibai
team)
JTPF formality and collaboration basis
Original mission? Collaborations? Which areas?Science with Subaru (NIR), ASTRO-F
(M&FIR), theories (simulations)NIR pre-survey of TPF/Darwin targets with
the new AO coronagraph (Subaru/HiCIAO)see evening session (Tamura, Guyon)
AKARI's MIR & FIR unbiased census of TPF/Darwin targets
Active theoretical groups (Ida, Kokubo, Tanaka,,,)
Good collaborations among observers, theoreticians, and dust team are on-going.
Observations
Theory and Experiments
Technical developments
ground-based
(SUBARU)
space-based
(ASTRO-F)
Large-scalenumerical
simulations
Laboratoryexperiment
s&
simulations
Detectordevelopmen
t& exozodi
ESP studies based on an MEXT fund “Grant-in-Aid for Scientific Research on Priority
Areas” have started (2004-2008).
Morp
holo
gy Com
positio
n
Organizing exo-solar planet sciences in Japan
NAOJ U Tokyo/ISAS
Tokyo I Tech./NAOJ Hokkaido U/Nagoya U
ISAS
2006 Dec 11-13 - Intermediate WS2008 TBD – International WS
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