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eVLBI and the Australian SKA Pathfinder (ASKAP)

Low luminosity GPS survey. eVLBI and the Australian SKA Pathfinder (ASKAP). SN1987A + ATCA. Circinus X-1. Prof. Steven Tingay Curtin University of Technology Perth, Australia 7th eVLBI workshop SHAO, 2008 June. ASKAP. eVLBI in Australasia.

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eVLBI and the Australian SKA Pathfinder (ASKAP)

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  1. Low luminosity GPS survey eVLBI and the Australian SKA Pathfinder (ASKAP) SN1987A + ATCA Circinus X-1 Prof. Steven Tingay Curtin University of Technology Perth, Australia 7th eVLBI workshop SHAO, 2008 June ASKAP

  2. eVLBI in Australasia • Based on ATCA, Parkes, Mopra (1 Gbps network) & Hobart (155 Mbps network), with software correlation; • Routinely available facility (up to 1 Gbps data rate); • Collaborative (ATNF, Curtin, Swinburne, UTas, NZ) roadmap for: • better connectivity (10 Gbps); • more distributed correlation (ATCA: software/hardware; Curtin: software); • more antennas (New Zealand, ASKAP); • Demonstrate real-time connectivity to: • Europe (via EXPReS); • Eastern Asia (this meeting - we hope!); • South Africa, South America, India, USA. • Full detail of current status in Chris Phillips presentation; • http://www.atnf.csiro.au/vlbi

  3. 5500 km APSR CATEP CABB Murchison Perth Auckland CUPPA

  4. Australian SKA Pathfinder (ASKAP) • 30 - 45 x 12 m dishes; • Phased Array Feeds (PAF); • Maximum baseline of 1 - 10 km; • Radio quiet location on Western Australia SKA site; • Maximum instantaneous bandwidth of 300 MHz; • Frequency coverage of at least 0.7 - 1.7 GHz; • http://www.auska.gov.au

  5. eVLBI and ASKAP:The high-resolution component of ASKAP Goal: Align with priorities of Australian SKA project and support the Australian bid to win the SKA. • Demonstrate connectivity and real-time correlation (in software in Perth) on baseline lengths to meet the SKA specifications i.e. at least 3000 km, at high datarate; • Do some SKA-related science: • Wide field imaging; • Transient detection and identification experiments; • Weak source surveys; • Pulsar proper motion and parallax, etc………. • Described in ASKAP science case (Johnston et al. 2007, PASA, 24, 174: VLBI chapter by Tingay et al.)

  6. 30” @ 5 mas TRIGGER 10 Gbps 10 Gbps Spectrum? Compact? Morphology? Evolution? ~ 30 uJy/beam ~ 5 mas FWHM

  7. Summary • eVLBI now routine for LBA at datarates up to 1 Gbps: • Approximately 6 eVLBI proposals currently in ATNF system for ongoing observations. • Pushing to 10 Gbps as quickly as possible; • Pushing to new instruments in Western Australia and New Zealand for 5500 km real-time baselines; • Strongly aligned with Australia’s program of SKA science and technology demonstration. Network providers (academic and private) interested and can see the opportunities.

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