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MWA Project:. Site: Murchison Radio Observatory Australia’s proposed SKA Site Strategy: 512 Antenna “Tiles” Explore “Large N / Small D” regime Correlate.

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Presentation on theme: "MWA Project:. Site: Murchison Radio Observatory Australia’s proposed SKA Site Strategy: 512 Antenna “Tiles” Explore “Large N / Small D” regime Correlate."— Presentation transcript:

1 MWA Project:

2 Site: Murchison Radio Observatory Australia’s proposed SKA Site Strategy: 512 Antenna “Tiles” Explore “Large N / Small D” regime Correlate all pairs Instantaneous complete UV coverage confront issues with Wide-Field Imaging, Foregrounds, Dynamic Range, …

3 MWA Project: Science goals: Epoch of Re-ionization Transients, Sun, … Implications… Compact, Dense Array Diameter ~ 1.5 km Frequency coverage 80-320 MHz

4 MWA Project: Consortium: MIT Haystack Observatory MIT Kavli Institute Harvard-Smithsonian Center for Astrophyics Australian universities (Curtin, ANU, Melbourne, Swinburne, Sydney, Tasmania, Western Australia, …) Raman Research Institute CSIRO/ATNF

5 Hierarhical groupings

6 Digital Beamformer ambient temperature (early design)

7 Receiver Node Housing 64 Nodes Coax RF input from 8 Tiles Fiber digital output Derek Caroll - PSI

8 Fielded Enclosure

9 Correlator: FPGA based “hardware correlator” and fine Filter Bank (10KHz channels) Correlate all pairs => 130,816 Interferometer Baselines (Prototyping & Testing … baseband recorders, software filter banks and correlators, …)

10 Aerial Photo of 32 Tile Prototype Array: Nov 2007

11 Locations of Antenna Tiles in 32T Array West-East [m]

12 Hydra A

13 115 Mhz Jan 2010

14 Hydra A 121 Mhz Chris Williams Sep 2010

15 Pictor A Fornax A

16 Pictor A Fornax A

17 Pictor A Parkes Catalog

18 Pictor A Parkes Catalog MWA Sources

19 32T Image 114 MHz 21 57 05.8 -69 41 22 UV coverage Full Hour Angle Coverage

20 Centaurus A

21 MWA 32T 115 MHz

22 Centaurus A

23 Comparison with X-ray observations

24 Solar Radio Bursts 170-200 MHz Oberoi, Matthews, et al

25 Grid of Radio Spectra across the face of the Sun Oberoi, Matthews, et al

26 Instantaneous 32T uv-coverage

27 Ord, Mitchell & Greenhill “2PiP” baseband recording system Vela

28 Ord, Mitchell & Greenhill “2PiP” baseband recording system

29 MWA Future Milestones: 32 Tile Array …… Feb 2010 512 Tile Array …. --> 2011

30 MWA Lessons development of/on new site is hard distributed, international project needs “project management” (… takes longer and costs more than expected) complete instantaneous uv-coverage is very powerful

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