Status of the Korean ALMA project Jongsoo Kim Korea Astronomy and Space Science Institute.

Status of the Korean ALMA project

Jongsoo Kim

Korea Astronomy and Space Science Institute

ALMA activities be-fore 2014 in Korea

• 2012-03-19– MOU bew. NAOJ and KASI

• 2012-09-13,14– ALMA EA Science Workshop

• 2012, 2013– Reports of Planning Study for the ALMA project

were submitted to the KASI– Last December, a report was finally approved in

the KASI

Preparation of Cycle 2 CfP

• Survey Science Group, KIAS– 2013-10-04, Cycle 2 CfP

• Town Meeting at KASI– 2013-10-28, 64 participants– Cycle 2 Capability, OT, CASA Simulator

• SNU Colloquium– 2013-11-21, Cycle 2 CfP

• ALMA proposals from Korea: 17

Classification of 17 proposals

• Fields– Cosmology and the high redshift Universe: 2– Galaxies and galactic nuclei: 2– Interstellar medium, star formation and astrochemistry:

11 – Circumstellar disks, exoplanets and the Solar System: 1– Stellar evolution and the Sun: 1

• Institutions– KASI: Universities = 12:5

ALMA Korean ProjectARC: Jongsoo Kim, A-Ran Lyo, Ji-Hyun Kang, Kyung-Hee Kim, Chan-dreyee Sengupta

Development: Jungwon Lee, Do-Hung Je, Ji-Man Kang, Seung-Lae Kim

ALMA Korean Project

• budget: 15MUSD/11years +

20MUSD (2020~2023years)• ARC

– Proposals, observing scripts, reductions, sciences

• Development plan– Multi-Beam Receivers (ASTE ALMA TP)– Spectrometer/Correlator (ASTE ALMA TP)

Multi-beam Receiver for ASTE

• Frequency band: 345 GHz or 460 GHz (or wide band to cover both bands)

• Number of beams: 9~64 beams• RF/IF Specifications: follow the ALMA speci-

fication (except polarization)

Software Spectrometer for an ASTE Multi-beam Receiver

• goal specification for a multi-beam receiver (ALMA specification): 4 basebands with 2GHz bandwidth, dual polarisation, 16 beams

• performance requirement: ~ 20 Tflops• input and output data rates: 1.6Tb/s, 200MB/sec

• A software spectrometer based on a 16-node cluster with 64 40GE ports

and 32 GPU cards is proposed.

2-band quasi-optics for ASTE

• Simultaneous observations using two receivers– CATS345, 324-372 GHz– ALMA B8QM, 400-500GHz

• Need modifications of the current spectrometers, – MAC– WHSF