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Radio Astronomy & Dark Ages

Radio Astronomy & Dark Ages. …. at RSAA. Radio astronomy…. Frank Briggs, Carole Jackson (RSAA staff) Dave Jauncey, Jim Lovell (ATNF/Tidbinbilla) Geoff Bicknell, Ralph Sutherland (theory) Ken Freeman, Helmut Jerjen (HI, gal. kinematics) + …

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Radio Astronomy & Dark Ages

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  1. Radio Astronomy & Dark Ages …. at RSAA

  2. Radio astronomy… • Frank Briggs, Carole Jackson (RSAA staff) • Dave Jauncey, Jim Lovell (ATNF/Tidbinbilla) • Geoff Bicknell, Ralph Sutherland (theory) • Ken Freeman, Helmut Jerjen (HI, gal. kinematics) • + … • … Mills Cross -> Molonglo Synthesis Telescope

  3. Molonglo Telescope 2 arms: 1.6 km X 12m redshifted Hydrogen

  4. …the end of The Dark Age…

  5. If neutral fraction nHI > ~10-3 nHI +nHII Cut off from view of optical wavelengths !!!

  6. 20 mK Global Signal…

  7. 10 arcmin

  8. Goal of new telescope: “LOFAR” = Low Frequency Array Possible site in Western Australia

  9. Upcoming events… 18 Dec ATNF Epping: Global signature workshop 30,31 Jan Sydney Uni: Low Frequency Universe Wkshp 2-9 Feb visit by Lofar delegation to tour possible site in WA Jan/Feb – exchange seminars with RSPhysE

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