MeerKAT outline
Lindsay
The MeerKAT Programme
• Africa will have a legacy of a large radio
telescope.
– Irrespective of the outcome of the SKA sit...
3
High Level Specifications
Metric KAT-7 MeerKAT
Flow 1.2 GHz 580 MHz
Fhigh 1.95 GHz 15 GHz
Ae/Tsys 16 m2
/K 200 m2
/K
DRi...
Configuration (64 antennas)
4
8 km
5
MeerKAT Large Surveys
MeerKAT Large Surveys
7
22 countries
MeerKAT Phase 1 (2016)
• 64 x 13.5 m gregorian offset antennas
– >> 220 m2
/K (300 m2
/K goal)
• 8 km maximum baseline
– 7...
Future Phases
• Aspirations (contingent on money
and/or technology availability):
– 580-1000 MHz (UHF-band) – currently
be...
Commissioning and early science
10
Time Allocated – > 5 years
11
Survey L-Band UHF X/Ku-Band
Deep HI 5 000 5 000
Pulsar Timing 7 860
30 Galaxies 6 000
HI Abs...
MeerKAT dish concept
12
KAT-7
13
HUDF & NVSS contours
NGC 3109 (neutral hydrogen)
15
16
Single Baseline OH spectrum
Vela Single Pulse Baseband
17
Other things we do…
18
Youth into Science & Engineering
• Research chairs
• Visiting / joint professorships
• University grants – support or
lect...
Opportunities (Students)
Research chair/group/program University Professor
Electromagnetic Systems and
EMI (Electromagneti...
Opportunities (Faculty)
• Science Data Processing
– Developer MeerKAT
• Archiving, Pipelining, Calibration, HPC
– Develope...
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MeerKAT: an overview

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Talk by Dr Lindsay Magnus at the SuperJEDI conference, July 2013

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MeerKAT: an overview

  1. 1. MeerKAT outline Lindsay
  2. 2. The MeerKAT Programme • Africa will have a legacy of a large radio telescope. – Irrespective of the outcome of the SKA site competition. – But not independent of the SKA. – Largest radio telescope in southern hemisphere, one of the largest in the world. • MeerKAT is an SKA Precursor. – Engineering prototype and early science (SKA- mid “Phase 0”). – Drive the establishment of the Karoo Radio Astronomy Reserve. 2
  3. 3. 3 High Level Specifications Metric KAT-7 MeerKAT Flow 1.2 GHz 580 MHz Fhigh 1.95 GHz 15 GHz Ae/Tsys 16 m2 /K 200 m2 /K DRimag 30 dB 60 dB DRspec 30 dB 50 dB Xpol -20 dB -25 dB BW 256 MHz 1 024 MHz (4 096 MHz) Nchan 4 096 32 768? Tint <1 s 0.1 ms
  4. 4. Configuration (64 antennas) 4 8 km
  5. 5. 5
  6. 6. MeerKAT Large Surveys
  7. 7. MeerKAT Large Surveys 7 22 countries
  8. 8. MeerKAT Phase 1 (2016) • 64 x 13.5 m gregorian offset antennas – >> 220 m2 /K (300 m2 /K goal) • 8 km maximum baseline – 70 % in < 1km diameter core • 0.9-1.726 GHz (following ECP) cryogenic single-pixel receiver (L- band) – Multiple feed indexer • Direct digitization – DFX architecture
  9. 9. Future Phases • Aspirations (contingent on money and/or technology availability): – 580-1000 MHz (UHF-band) – currently being designed – 8-14.5 GHz (X/Ku-band) – 20+ km baselines – possibly use initial SKA dishes – 1.5-3 GHz for NanoGrav – 5-22 GHz wideband receiver • SKA-mid Phase 1
  10. 10. Commissioning and early science 10
  11. 11. Time Allocated – > 5 years 11 Survey L-Band UHF X/Ku-Band Deep HI 5 000 5 000 Pulsar Timing 7 860 30 Galaxies 6 000 HI Absorption 2 000 2 000 EoR Molecules 6 500 Fast Transients 3 080 ? Fornax HI 2 450 X/Ku-band Galaxy 3 300 Deep Continuum 1 950 Slow Transients 3 000 ? ? TOTAL 31 340 7 000 8 800 1 yr = 8 760 hr
  12. 12. MeerKAT dish concept 12
  13. 13. KAT-7 13
  14. 14. HUDF & NVSS contours
  15. 15. NGC 3109 (neutral hydrogen) 15
  16. 16. 16 Single Baseline OH spectrum
  17. 17. Vela Single Pulse Baseband 17
  18. 18. Other things we do… 18
  19. 19. Youth into Science & Engineering • Research chairs • Visiting / joint professorships • University grants – support or lecturers • Postdoctoral fellowships • Postgraduate bursaries • Undergraduate bursaries • Internships • Technician training – national diplomas at universities of technology • FET (artisan) training • Development of astrophysics and related engineering in Africa partner states • Mobility grants A focused and structured programme with a pipeline strategy
  20. 20. Opportunities (Students) Research chair/group/program University Professor Electromagnetic Systems and EMI (Electromagnetic Interference) Mitigation Stellenbosch Prof. David Davidson Radio Astronomy Wits Prof. Sergio Colafrancesco Astrophysics UWC Prof. Roy Maartens Multi-Wavelength Extragalactic Astronomy UCT Prof Claude Carignan Radio Astronomy Techniques Rhodes Prof Oleg Smirnov NASSP Multiple www.star.ac.za SKA Multiple http://www.ska.ac.za/students/ bursaries.php
  21. 21. Opportunities (Faculty) • Science Data Processing – Developer MeerKAT • Archiving, Pipelining, Calibration, HPC – Developer SKA PEP • Work on developing specifications for SKA • Commissioning – Senior scientist • Can lead commissioning teams with a good knowledge of the system from hardware through to publishable science – Junior/intermediate scientist • Has worked on radio telescope hardware and data 21

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