LBA Calibrator Survey Chris Phillips eVLBI Project Scientist 23 July 2009.

Slides:

Advertisements

Similar presentations

VLBI progress Down-under Tasso Tzioumis Australia Telescope National Facility (ATNF) 25 September 2008.

Advertisements

ELBA – Current Developments Chris Phillips eVLBI Project Scientist 16 June 2008.

E-VLBI down-under Tasso Tzioumis ATNF, CSIRO July 2005 Towards e-VLBI.

E-VLBI Progress with the LBA Chris Phillips, eVLBI Project Scientist November 2011.

E-VLBI progress in the South Tasso Tzioumis ATNF, CSIRO September 2006 “Towards e-VLBI”  “e-VLBI”

A supercomputer-based software correlator at the Swinburne University of Technology Tingay, S.J. and Deller, A.

Baseband Processing and SKA Simulations using Supercomputers: Enhancing Australia‘s radio astronomy facilities and its bid for the SKA Steven Tingay Swinburne.

21 November 2002Millimetre Workshop 2002, ATNF First ATCA results at millimetre wavelengths Vincent Minier School of Physics University of New South Wales.

Phil Edwards Head of Science Operations CSIRO Astronomy and Space Science Science Operations.

Probing the field of Radio Astronomy with the SKA and the Hartebeesthoek Radio Observatory: An Engineer’s perspective Sunelle Otto Hartebeesthoek Radio.

Decadal Plan UNSW, 17 Dec 2004 Australia Telescope Operated by CSIRO as a National Facility since 1990 As a National Facility, the Australia Telescope.

ATCA and Mopra Phil Edwards. VSOP observations with ATCA 190 observations with Mopra.

Millimetre Facilities in Australia Andrew Walsh. Australia Telescope Compact Array.

Prototype SKA Technologies at Molonglo: 3. Beamformer and Correlator J.D. Bunton Telecommunications and Industrial Physics, CSIRO. Australia. Correlator.

Very Long Baseline Interferometry (VLBI) – Techniques and Applications Steven Tingay ATNF Astronomical Synthesis Imaging Workshop Narrabri, 24 – 28 September,

Baseband processing, e-VLBI, and SKA simulations Steven Tingay Swinburne University of Technology MNRF Symposium, 8 June, 2004.

Australian Radio Astronomy Facilities Tasso Tzioumis Australia Telescope National Facility CSIRO Spectrum Management Coordinator

Class I methanol masers in the regions of high-mass star-formation Max Voronkov Software Scientist – ASKAP In collaboration with: Caswell J.L., Ellingsen.

VLBI Report LBA Operations & eVLBI Tasso Tzioumis ATNF May 2008.

E-VLBI: Science with Multi-Gigabit Global Networks Dr Shaun Amy (Dr Chris Phillips, Dr Tasso Tzioumis) Australia Telescope National Facility 22 January.

High-Frequency GPS sources from the AT20G survey Paul Hancock - University of Sydney Australia Ron Ekers (ATNF, PI), Sarah Burke(Swinburne), Mark Calabretta.

Millimetre Astronomy with the Australia Telescope Max Voronkov Software Scientist – ASKAP 12 th June 2009.

Current LBA Developments Chris Phillips CSIRO ATNF 13/7/2005.

VLBI in Africa Michael Bietenholz Hartebeesthoek Radio Observatory.

Mark Bowen Acting Theme Leader – Technologies for Radio Astronomy CSIRO Astronomy and Space Science 14 October 2010 Australia Telescope Users Committee.

Recent Developments in Australia Phil Edwards Head of Science Operations CSIRO ATNF.

E-VLBI at ≥ 1 Gbps -- “unlimited” networks? Tasso Tzioumis Australia Telescope National Facility (ATNF) 4 November 2008.

03/000 Future operations of the AuScope network Australian Government Geoscience Australia.

Update on LBA Technical Developments CASS Chris Phillips 11 October 2013.

An African VLBI network of radio telescopes as an SKA precursor Michael Gaylard Hartebeesthoek Radio Astronomy Observatory (HartRAO) P. O. Box 443, Krugersdorp.

Recent results from the Swinburne supercomputer VLBI software correlator(s) Steven Tingay, Craig West, Adam Deller, Shinji Horiuchi Centre for Astrophysics.

(Spectral Line) VLBI Chris Phillips CSIRO ATNF Chris Phillips CSIRO ATNF.

The ATNF Front End and Back End Groups Presented by Graeme Carrad Assistant Director – Engineering - October 2009 Australia Telescope Users Committee Technologies.

2003 LBA Ops meeting Tasso Tzioumis. Previous LBA ops meeting 3 April 2003, Hobart Minutes on

Science Operations Philip Edwards Head of Science Operations 29 October 2009.

ATUC Meeting, 14 May 2009, Astro Issues Robert Braun.

Designing Experiments T. Venturi Istituto di Radioastronomia, Bologna, INAF ERIS, Manchester, 9 September 2005.

EVLBI and the Australian SKA Pathfinder (ASKAP) Prof. Steven Tingay Curtin University of Technology Perth, Australia 7th eVLBI workshop SHAO, 2008 June.

Australia Telescope 20 GHz survey (AT20G): An Update Ron Ekers (ATNF, PI),Sarah Burke(Haverford-Swinburne), Mark Calabretta (ATNF), Gianfranco De Zotti.

The Role of Parkes in Southern Maser VLBI Simon Ellingsen University of Tasmania.

Status and capabilities of the Australian LBA Phil Diamond Chief, Astronomy & Space Science.

Australian Astronomy MNRF Development of Monolithic Microwave Integrated Circuits (MMIC) ATCA Broadband Backend (CABB)

MALT Survey meeting / Masers at 7 and 3mm Max Voronkov Software Scientist – ASKAP 04 th June 2009.

DiFX Performance Testing Chris Phillips eVLBI Project Scientist 25 June 2009.

Astro Report to ATUC – October 2011 Simon Johnston Head Astrophysics, CASS ATUC, October 2011.

Molecular Clouds in in the LMC at High Resolution: The Importance of Short ALMA Baselines T. Wong 1,2,4, J. B. Whiteoak 1, M. Hunt 2, J. Ott 1, Y.-N. Chin.

Preparatory activities of H 2 O maser astrometry towards LMC and SMC Hiroshi Imai (Dept. Physics and Astronomy, Kagoshima University) VSOP-2 KSP Maser.

Class I methanol masers and evolutionary stage of star- formation Max Voronkov Software Scientist – ASKAP In collaboration with: Caswell J.L., Ellingsen.

VLBI Facility report - Mar 2003 Tasso Tzioumis ATNF CSIRO.

Australian SKA Pathfinder (ASKAP) David R DeBoer ATNF Assistant Director ASKAP Theme Leader 06 November 2007.

The Future of the VLBA 27 & 28 January 2011 Arecibo, the VLBA and the HSA Chris Salter Arecibo Observatory (National Astronomy & Ionosphere Center) ‏

ASKAP Update David DeBoer ASKAP Project Director 26 May 2010.

Review of developments in Australasia and mainland Asia Steven Tingay Swinburne University of Technology Next Generation correlator meeting, JIVE 27 -

The ATNF Front End and Back End Groups Presented by Graeme Carrad Assistant Director – Engineering - May 2010 Australia Telescope Users Committee Technologies.

Arecibo’s Existing VLBI Capability Arecibo’s Existing VLBI Capability DAR - VLBA4 MK5A Max 1-GHz IF The Big Dish (Gain~10k/Jy,SEFD~3-5 Jy)‏ Correlator.

Prof. Steven Tingay (ICRAR, Curtin University) Workshop on East-Asian Collaboration on the SKA Daejeon, Korea, November 30 – December 2, 2011 A long baseline.

Collaborative Research Projects in Australia: Radio Astronomy Dr. Greg Wickham (AARNet) Dr Tasso Tzioumis Dr Shaun Amy Dr Chris Phillips (CSIRO ATNF) Global.

ATCA GPU Correlator Strawman Design ASTRONOMY AND SPACE SCIENCE Chris Phillips | LBA Lead Scientist 17 November 2015.

Development of DiFX Adam Deller NRAO 3rd DiFX workshop, Curtin University, Perth.

Observatory Visit Naomi McClure-Griffiths Australia Telescope National Facility CSIRO Vacation Scholar Program 2 Dec 2002.

Parkes ATUC Report Nov Stats Scheduled observing time (2007) –85% Downtime (last 12 months): –1% system faults –3.1% high wind.

Atacama Large Millimeter/submillimeter Array Expanded Very Large Array Robert C. Byrd Green Bank Telescope Very Long Baseline Array The Very Long Baseline.

VLBI Developments in Australia ASTRONOMY AND SPACE SCIENCE Chris Phillips| LBA Lead Scientist 11 November 2014.

MPIfR Results from the A. Chippendale ATUC, 14 Nov 2016

Pulsar Timing with ASKAP Simon Johnston ATNF, CSIRO

Wide Field Astronomy with ASKAP

Class I methanol masers and shocks

Early indications of performance

Wide-field, high sensitivity VLBI

Australia Telescope Users Committee Technologies Report – October 2011

Presentation transcript:

LBA Calibrator Survey Chris Phillips eVLBI Project Scientist 23 July 2009

ATCA Hobart Sydney Ceduna ASKAP The LBA Perth Melbourne Tidbinbilla Mopra Parkes

The LBA 6 telescopes within Australia Parkes, 64m ATCA, 5x22m phased array Mopra, 22m Hobart, 26m Ceduna, 30m Tidbinbilla, 34m&70m Also Hart, Kokee, TIGO, O’Higgins, Shanghai, Kashima 1-20 GHz Data rates up to 1 Gbps LBADR recording system (Mark5b mode) eVLBI up to 1 Gbps Pa, At, Mp, Ho ( Mbps) CSIRO. eVLBI-Aus

LBA Operations Coordinated VLBI for 3 weeks/year 3-4 dedicated sessions/year Fixed schedule Actual schedule depends on experiment request and TAC grading Correlated using DiFX Correlation contracted to Curtin University (Steve Tingay, Cormac Reynolds, Hayley Bignall) CSIRO. eVLBI-Aus

LBA - Future Wide band DAS 1-2 GHz ATCA CABB commissioned DFB3 Pulsar Backend for Parkes/ATCA AuScope 3x12m for geodesy WA, NT and Tasmania S/X only No operational funds for astronomy CSIRO. eVLBI-Aus

ASKAP Number of dishes36 Dish diameter 12m Max baseline 6km Resolution30  Sensitivity65 m 2 /K Observing frequency700 – 1800 MHz Field of View30 deg 2 Processed Bandwidth300 MHz Multiple VLBI beams Up to 30, requested at least 2 Combined with cluster-cluster VLBI at other stations Parkes multibeam, ATCA array, Hobart 12m CSIRO. eVLBI-Aus

LBA Astrometry Adam Deller’s PhD Thesis Parallaxes to 7 pulsars J : Most accurate pulsar distance to date 1E –5408 magnetar propermotion 6.7 GHz methanol maser parallax H 2 0 maser proper motion in LMC CSIRO. eVLBI-Aus

LBA Astrometry – The Problem CSIRO. eVLBI-Aus

AT20G All Southern sky 20 GHz survey South of Dec 0 8 GHz bandwidth Analog correlator 3 antenna Sensitivity limit ~50 mJy CSIRO. eVLBI-Aus

Survey Design Wideband (8 GHz) analogue correlator Fast scan rate: 15°/min at meridian Follow-ups at 4.8, 8.6 & 20 GHz to confirm detection and for spectral info

Survey Parameters Survey Frequency (GHz) Source # Area (sq. Deg.) S lim (mJy) Taylor et al C (Waldram et al ) 15 (22, 43) WMAP (Wright et al. 2008)23, 33, 41, 61, Full Sky (40000) 1000 AT20G20 (4.8,8.6)5800½ Sky (20000)50

LBA Calibrator Survey Using AT20G as a basis for sample to increase density of Southern calibrators σ > S(8.4 GHz) > 190 mJy Dec < -40 Correlated at Bonn Native Mark5A, Mark5B, translated Mark5b shipped electronically Processed with CALC/Solve by Leonid Petrov 8 GHz only – limited by LBA DAS 4x 24hr observed 3x 24hr correlated/analyzed CSIRO. eVLBI-Aus

LBA Calibrator Survey - Results 422 new sources observed 326 processed 317 detections 97.2% detection rate 4 more epochs proposed CSIRO. eVLBI-Aus

Results CSIRO. eVLBI-Aus Before Now Final

Results CSIRO. eVLBI-Aus

Probability of Close Calibrator Zone [-90, -40][+40, +90] Jan 2008Now2010Now 2deg radius21.2%57.8%78.0%73.4% 3deg radius41.2%84.4%96.2%95.0% 4deg radius60.5%96.0%99.5%99.6% # objects CSIRO. eVLBI-Aus

Results – Formal Errors CSIRO. eVLBI-Aus

Compactness CSIRO. eVLBI-Aus

Contact Us Phone: or Web: Thank you ATNF Chris Phillips eVLBI Project Scientist Phone: Web: