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Michitoshi YOSHIDA Hiroshima University 2012/11/291Japan-Korea WS on KAGRA.

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Presentation on theme: "Michitoshi YOSHIDA Hiroshima University 2012/11/291Japan-Korea WS on KAGRA."— Presentation transcript:

1 Michitoshi YOSHIDA Hiroshima University 2012/11/291Japan-Korea WS on KAGRA

2  Founded in 2004 April  Higashi-Hiroshima Observatory and the 1.5m optical – infrared telescope (Kanata)  Mission:  Observation of Targets of Opportunity (ToO) in collaboration with high-energy astronomical satellites (Fermi gamma-ray satellite, Suzaku X-ray satellite)  Reveal high-energy, dynamic activity in the universe  Main targets:  Gamma-ray bursts, Supernovae, Novae, Cataclysmic variables, X-ray binaries, blazars, etc.

3 Diameter: 1.5m Ritchy – Cretien F/12 Foci: Cassegrain, 2 Nasmyths Originally constructed by Mitsubishi Electric Co. in 1996 for an instrumentation test bench of Subaru Telescope

4 Searching for EM counter part is crucial for understanding the nature of GW sources The most promising GW sources  NS-NS merger Metzger & Berger /11/294Japan-Korea WS on KAGRA

5 NR Tanvir et al. (2013) Optical, NIR and X-ray light curves of GRB130603B. Kilonova models ejecta mass M  M  2012/11/29

6 Figure 3 from Progenitor Models of the Electromagnetic Transient Associated with the Short Gamma Ray Burst B Kenta Hotokezaka et al ApJ 778 L16 doi: / /778/1/L16 Kilonova model (Hotokezaka et al. 2013) NS-NS merger NS-BH merger Consistent with the models M ej ~ 0.02 – 0.05 M  2012/11/296Japan-Korea WS on KAGRA

7 PI : Takashi Nakamura (Kyoto Univ.) CoPI: Nobuyuki Kanda (Osaka City Univ.) 2012/11/297Japan-Korea WS on KAGRA

8 Overview of the project A01 A02 A03 A04 A /11/298Japan-Korea WS on KAGRA

9  Develop an optical-infrared-radio observation network for GW transient follow-up 1. Kiso 6x6 deg 2 Camera (optical imager) 2. OAO-WFC (wide-field infrared camera) 3. IFU for the spectrograph of 3.8m telescope 4. 50cm robotic telescope in Tibet (HinOTORI) 5. Establish a transient observation network by utilizing existing facilities: Mini-TAO, IRSF, Kanata, Yamaguchi 32m radio tel., etc. 2012/11/299 PI: M.Yoshida Japan-Korea WS on KAGRA

10  Michitoshi Yoshida (Hiroshima University)  Project chief, Development of a 60cm robotic telescope at Tibet  Koji Ohta (Kyoto University)  Development of an IFU for spectrograph of a new 3.8m telescope, and coordinated observation with Subaru  Kentaro Motohara (Tokyo University)  Development of a wide-field CMOS camera of the Kiso Schmidt telescope, and mini-TAO (in Chile) observation  Kenshi Yanagisawa (NAOJ)  Development of robotic observation system for the Okayama wide-field infrared telescope  Associate researchers  Mamoru Doi (Tokyo Univ.) → Kiso observatory, mini-TAO  Koji S. Kawabata (Hiroshima Univ.) → Kanata telescope  Takahiro Nagayama (Nagoya Univ.) → IRSF in South Africa  Kenta Fujisawa (Yamaguchi Univ.) → Yamaguchi radio telescope 2012/11/2910Japan-Korea WS on KAGRA

11 World-wide obs.  long term monitor event evolution Kanata IRSF GW alert ( A04 ) theory (A05) X-γ obs. (A01) Neutrino obs. (A03) Kiso 6x6 deg 2 Camera OAO IR WFC Kyoto 3.8m Yamaguchi32m NRAO 45m Multi-wavelen.  detailed study identification emission mechanism Multi-mode obs.  detailed study redshift -> distance emission mechanism East Asia50cm Subaru miniTAO Wide field obs.  EM counterpart Rapid identification alert to other facilities alert Coop. Detection of EM counterpart of GW transient with wide-field observations Multi-mode observations  physics of EM counterpart The nature of GW transient

12 Kiso 6x6 deg 2 camera OAOWFC Robotic obs. system 50cm robotic telescope IFU of Kyoto 3.8m telescope Software system Data analysis pipeline Transient object observation Tel. contl system 6x6 deg 2 camera development designdevelopmentcommissioning Development & preparationTest obs. Regular obs. installation GW transients follow-up commissioning Commissioning & operation Telescope designconstruction 3-color camera development complete operation Obs. with Kanata, Subaru, mini-TAO, IRSF, OAO-WFC, radio telescopes Shift to GW transients follow-up operation Construct the base of optical – radio follow-up observations of EM counterparts of GW transients until 2016 design commissioning 12

13 IRSF (Nagoya South Africa 1m Kiso Schmidt telescope 5 deg 2 camera  30 deg 2 1.5m Kanata telescope 50cm MITSuME 91cm W-F NIR camera of NAOJ 1 deg 2 NIR camera Yamaguchi 32m radio telescope ★ ★ miniTAO (Tokyo Chile 50cm telescope (Hiroshima Univ. 2014) Japan Coordinated network for transients observation ★ A part of the project “Multi-messenger Observations of GW sources” * collaborating with the KAGRA data analysis team * science cases: GRBs, supernovae, blazars, etc. 3.8m telescope (Kyoto Univ. 2015) Main features: 5 deg 2 opt. imaging w/ 1m 1 deg 2 NIR imaging w/ 1m opt-NIR spectroscopy w/ 1–8m opt-NIR polarimetry 2012/11/2913Japan-Korea WS on KAGRA

14 2012/11/2914Japan-Korea WS on KAGRA

15 Results of simulation on estimation of an arrival direction of gravity wave. Hayama (NAOJ) 2012 ・ 105cm Kiso Schmidt telescope ・ F.O.V of 6deg x 6deg ・ Since Apr. 2012, the KWFC (Kiso Wide Field Camera) with a F.O.V of 2deg x 2deg has been operated. F.O.V 6deg x 6deg Project plans 1. Development of 6deg x 6deg extremely wide field camera 2. Speeding-up and stabilizing Kiso 105cm Schmidt telescope system 15

16 The world’s widest survey camera -The current widest field came is Pan-STARRS with a F.O.V. of 3deg x 3deg. CMOS sensors adopted um/pixel, 20kx20k pixels camera (Data rate: ~800MB/frame) -Operation at -10 degrees of elevation -High-speed read-out (1-10 frames/sec) + Extremely wide field  New scientific fields, in addition to follow-up of gravity wave. -Key components CMOS sensor : Collaborate with a domestic company. Read-out system : Use read-out technologies developed for infrared CMOS detectors by U-Tokyo. Time line -FY2012 Evaluations of available CMOS sensors Feasibility studies on cryogenics, optics, and electronics -FY Development of camera system with ~10 pcs. of available CMOS sensors. Development of CMOS sensors with new designs. -FY2016 Test observations 2012/11/2916Japan-Korea WS on KAGRA

17 2012/11/2917Japan-Korea WS on KAGRA

18 2. OAOWFC Okayama Astrophysical Observatory Wide Field Camera 2012/11/2918Japan-Korea WS on KAGRA

19 OAOWFC Okayama Astrophysical Observatory Wide Field Camera  Wide Field NIR Camera  Optics:  Effective Diameter: φ 0.91 m  Forward Cassegrain + quasi Schmidt  F/2.5 (the fastest optics in the NIR)  F.O.V. : 0.92 × 0.92 sq.deg. ( 1.62 arcsec/pix )  F.O.V. : 0.92 × 0.92 sq.deg. ( 1.62 arcsec/pix )  HAWAII2-RG, Teledyne  HAWAII2-RG, Teledyne  0.47 x 0.47 sq.deg. (1.67 arcsec/pix) HAWAII Eng., Teledyne  Wavelengths : 0.9 – 2.5 um ( Y,J,H,Ks -band) 2012/11/2919Japan-Korea WS on KAGRA

20 WFCT II: 1.00 ×1.00 deg 2 D=0.22m Comparison of F.O.V.s D=0.91m OAOWFC: 0.92 ×0.92 deg 2 D=4.1m VISTA: 0.77 ×0.77 deg 2 D=3.8m WFCAM: 0.46 ×0.46 deg 2 IRIS: 0.22 ×0.22 deg 2 D=0.8m SIRIUS: 0.13 ×0.13 deg 2 D=1.4m OAOWFC has one of the world’s largest field of view. 2012/11/2920Japan-Korea WS on KAGRA

21 2012/11/2921Japan-Korea WS on KAGRA

22 prompt optical spectroscopy with Integral Field Unit for short GRBs (+ long GRBs) possible optical counterparts of the transients identified with imaging facilities (Kiso, Okayama, etc) supernovae Locations of large (>3m) optical/NIR telescopes. No large telescopes around Japan  3.8m telescope at Okayama is important to make prompt optical follow-up spectroscopy 2012/11/2922Japan-Korea WS on KAGRA

23 Planned 3.8m telescope at Okayama Integral Field Unit FoV ~ 30”x30” optical wavelength R~ =>spectrograph Conceptual view of IFU 2012/11/29

24 24Japan-Korea WS on KAGRA

25  Development of a 50cm robotic telescope + 3-color camera system  West China (Tibet area)  Expected limiting mag. (S/N=5 for 10 min exp.)  18.5 mag. u ’-band  21.1 mag. R c -band  20.8 mag. I c -band 2012/11/2925Japan-Korea WS on KAGRA

26 West end of Tibet: ~ 60 degree west from Japan altitude: 5000m 2012/11/2926Japan-Korea WS on KAGRA

27 A1 A2 B4 B1 Lhasa Gar Tibet West end of Tibet: ~ 60 degree west from Japan altitude: 5000m 2012/11/2927Japan-Korea WS on KAGRA

28 A1 A2 B4 Views of A1, A2 and B4 from B1 2012/11/2928Japan-Korea WS on KAGRA

29 Telescope Alluna 50cm telescope (Germany: commercial product) 2012/11/2929Japan-Korea WS on KAGRA

30 Optical Layout of the 3-color camera u ’ band R c band I c band telescope dichroic mirror FOV: 24 arcmin^2 2012/11/2930Japan-Korea WS on KAGRA

31  Fully robotic operation  Heritage of MITSuME project will be used. OAO 2012/11/2931Japan-Korea WS on KAGRA

32 2012/11/2932Japan-Korea WS on KAGRA

33 IRSF (Nagoya South Africa 1m Kiso Schmidt telescope 5 deg 2 camera  30 deg 2 1.5m Kanata telescope 50cm MITSuME 91cm W-F NIR camera of NAOJ 1 deg 2 NIR camera Yamaguchi 32m radio telescope ★ ★ miniTAO (Tokyo Chile 50cm telescope (Hiroshima Univ. 2014) Japan Coordinated network for transients observation ★ A part of the project “Multi-messenger Observations of GW sources” * collaborating with the KAGRA data analysis team * science cases: GRBs, supernovae, blazars, etc. 3.8m telescope (Kyoto Univ. 2015) Main features: 5 deg 2 opt. imaging w/ 1m 1 deg 2 NIR imaging w/ 1m opt-NIR spectroscopy w/ 1–8m opt-NIR polarimetry

34 GW detectors High-E satellites Wide-field imaging Multi-mode observationMulti-band observation Optical Kiso 6x6 deg 2 camera 50cm tel. (0.5x0.5 deg 2 ) Near-Infrared OAO-WFC (1x1 deg 2 ) 3.8m telescope spectroscopypolarimetry Kanata IRSFKanata Near-infrared miniTAO IRSF radio Yamaguchi 32m Nobeyama 45m Subaru 2012/11/2934Japan-Korea WS on KAGRA

35  We are developing a coordinated network of optical- infrared-radio observations for follow-up of GW transients. This project is funded till March 2017 by Grant-in-Aid for Scientific Research on Innovative Area of MEXT (Monbu- Kagaku Sho).  The network contains several existing small optical- infrared telescopes in Japan, South-Africa, and Chile.  Two new telescopes are under construction (50cm in Tibet and 3.8m in Japan).  We plan to join the LIGO/Virgo collaboration for EM follow- up next year.  Collaboration with Korea is important and fruitful on this subject. 2012/11/29Japan-Korea WS on KAGRA35


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