Radio Astronomy in Japan

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Radio Astronomyin Japan

• INOUE, Makoto
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• Space VLBI Project Office
• NAOJ

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Observatories in Japan

• Several Radio Observatories in NAOJ
• Nobeyama Radio Observatory
• 45-m millimeter telescope (20-150 GHz)
• Nobeyama mm Array (5 x 10 m 85-240 GHz)
• Nobeyama Solar Radio Observatory
• Nobeyama Radio Heliograph (84 x 80 cm 17 34
  GHz)
• VERA Observatory
• VLBI Array for Astrometry (4 x 20 m, dual beam S
  X bands, 22 43 GHz)
• Atacama Submillimeter Telescope Experiment (ASTE)
  with Universities in Chile

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Radio Telescopes at NRO
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(No Transcript)
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Observatories in Japan(contd)

• Observatories/Facilities
• Mt. Fuji Submillimeter telescope
• Run by Univ. of Tokyo, 1.2 m, 350-800 GHz
• NANTEN at Las Campanas, Chile
• Run by Nagoya Univ., 4 m, CO at 115 GHz
• Array at Nasu
• Run by Waseda Univ., 5 x 20 m spherical, 1.4 GHz
• 34-m telescope at Kashima (CRL)
• S X, 22 GHz
• 32-m telescope of Geographical Survey Institute
  (GSI)
• S X, 22 GHz
• 64-m antenna/telescope of ISAS
• S X, 5, 22 GHz
• 8-m in space VLBI Space Observatory Program
  (VSOP)

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ALMA

• We have the budget since this FY, and are about
  to participate in US-European ALMA
• We will have 4 x 12 m, and 12 x 6 m to the basic
  ALMA of 64 x 12 m
• Radio Astronomy group in Taiwan is planning to
  join in the Japanese group

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ALMA Artists Impression
Most Compact configuration. Baseline extendible
up to 14 km
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Japanese VLBI Stations at 22 43 GHz
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KVN-VERA Network
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KVN
VERA
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Operational at 22 and 43 GHz
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VLBI Collaborations

• VERA KVN collaboration
• mm VLBI experiments between Nobeyama, Daeduk, and
  Delingha
• VSOP-2 ground counterpart
• Discussion to form a VLBI consortium, and a data
  center in the East-Asia region

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Issues to think about_at_East Asia mm-VLBI WS at
Shanghai, Nov. 2003

• How many observations?
• Organization/Coordination
• Exchange of information
• Exchange of staff/students
• Correlator(s)