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SKA UpdateKristine Spekkens
Canadian SKAScience Director
www.skatelescope.cawww.skatelescope.org
Exploring the Universe with the world’s largest radio telescope
(Join the conversation! [email protected])
May 12 2021
Exploring the Universe with the world’s largest radio telescope
Budget 2021 did not provide a decision on Canada's participation in
the construction and operation phases of the SKA Phase 1 (=SKA1).
SKA1 construction will likely start on 1 July 2021. A failure by Canada to make a commitment by that time risks a significant loss of return on investment to Canadian industry.
Our Government understands the SKA project timeline and the
importance of Canada's contribution to its success. Consideration is still being given to the options available
for Canada to continue making contributions to the project.
SKA1
SKA1-Mid: 133x15m + 64x13.5m dishes,0.35–15+ GHz; 150 km baselines
SKA1-Low: 512 x 256 low-freq dipoles,50–350 MHz; 65 km baselines
3 sites (AUS, RSA, UK-HQ) 2 telescopes (LOW, MID) 1 Observatory (SKAO)Design Baseline: ~€1.7B construction + ops from 2021-2030
Design Phase: ~€250M; 600 scientists/engineers; now completeConstruction: 2021-2028
MeerKATBaseline Design:
SKAO SKAO Imag
e cr
edit:
SKA
O
Sensitivity: 8x LOFARResolution: 1.25x LOFAR
Survey Speed: 135x LOFAR
Sensitivity: 5x JVLAResolution: 4x JVLA
Survey Speed: 60x JVLA
Canadian SKA1 Science
Canada is a world leader in pulsars, cosmic magnetism, transients, and low-frequency cosmology, and has multi-wavelength expertise in galaxy
evolution, multimessenger astronomy and planetary system formation.
Imag
e cr
edits
(fro
m to
p): N
ASA;
NAS
A/St
Sci/A
URA
/MPI
FR/G
. Has
lam
; LM
SAL/
NAS
A; S
prin
gel+
05;
SKA
O; N
ASA/
ESA/
StSc
i; M
PIFR
/M. K
ram
er.
SKA1 Timeline
KS+
2019
Construction and observatory establishment (“operations”) proposals approved and publicly released. The pre-construction phase has ended.
The start of construction (=“T0”) is scheduled for 1 July 2021.
https://www.skatelescope.org/news/skao-publishes-construction-proposal/
Broad ImpactsThe broad impacts expected from SKA1 are structured around
the UN Sustainable Development Goals.
https://www.skatelescope.org/news/skao-publishes-construction-proposal/http://skatelescope.ca/broader-impacts/
Broad Impacts
https://www.skatelescope.org/news/skao-publishes-construction-proposal/http://skatelescope.ca/broader-impacts/
San leadership blessing of the future SKA site in South Africa.
Cred
it: S
ARAO
Cred
it: C
SIRO
Heritage Walkover Team for the future SKA site in Australia.
From construction proposal:
The broad impacts expected from SKA1 are structured around the UN Sustainable Development Goals.
SKA Governance
• The IGO came into force on 15 Jan 2021, and as of 1 May 2021 manages all personnel, assets and liabilities. The transition from the design-phase company to the construction+operations -phase IGO is complete.
• Canada is one of 10 Observer Countries of the IGO. Observers may attend IGO Council meetings, but they are not permitted to provide input.
• The start of construction (=“T0”) is scheduled for 1 July 2021, pending approval by the IGO Council at its 24-25 June 2021 meeting (= “Council 3”).
• Commitments to the Construction Funding Schedule by Member and Observer countries are expected at Council 3.
The project is governed by the SKA Observatory (SKAO), an intergovernmental organisation (IGO) governed by treaty.
Canadian SKA1 Science
Canada is a world leader in pulsars, cosmic magnetism, transients, and low-frequency cosmology, and has multi-wavelength expertise in galaxy
evolution, multimessenger astronomy and planetary system formation.
Imag
e cr
edits
(fro
m to
p): N
ASA;
NAS
A/St
Sci/A
URA
/MPI
FR/G
. Has
lam
; LM
SAL/
NAS
A; S
prin
gel+
05;
SKA
O; N
ASA/
ESA/
StSc
i; M
PIFR
/M. K
ram
er.
SKA Regional (Data) Centres
710 PB/yr
22 PFlop/s
100 GB/s
• Partnership between SKA and participating countries to provide user access to SKA data, host the Science Archive, provide computing support, create/maintain analysis tools.
• The SRC network development is ongoing via international working groups.
Canada will need SRC access. Hosting a Canadian SRC would leverage our scientific computing platform and archive development
strengths, and would be a hub of Canadian SKA activity.
Calibrated data
Scientific analysis
http://skatelescope.ca/news-events-and-documents/documents/http://skatelescope.ca/canada-and-the-ska/cirada/zzp-survey_instrument-gaensler ; zzp-edi-spekkens
Canadian SKA1 Technology
Talon-DX processing board and LRU for SKA1-Mid
Imag
e cr
edit:
Mik
e Pl
easa
nce
• Canada has been conditionally allocated leadership of the Mid-Central Signal Processor SKA1 construction package (~ “the correlator”) by the IGO.
• This package and other technologies would provide a suite of in-kind construction contributions.
• Conditional allocations become actual allocations once a funding commitment is made.
Canada led the CSP consortium with industrial partner MDA (CDR in 2018). NRC is now testing the interfaces between CSP and the rest of the SKA system.
http://skatelescope.ca/canada-and-the-ska/technology/http://skatelescope.ca/canada-and-the-ska/industry/
LRP2020 and SKA (#17)
• Cost of 2021-2030 participation: ~$290M.• ~$150M of those funds would stay in Canada.• Significant engagement by the Coalition for
Canadian Astronomy to raise awareness of importance, costs, benefits, timelines for a decision.
http://skatelescope.ca/news-events-and-documents/documents/
4-page non-technical summaries: see skatelescope.ca
(inflation-adjusted2021 CAD)
Leadership• IGO Council Observers:
– Luc Simard, Michael Rupen (NRC)• SRC Steering Committee:
– Séverin Gaudet (NRC)
• SRC Working Groups:– Jeff Albert (WestGrid), Mike Cave (WestGrid), Ryan Enge (WestGrid), Sébastien
Fabbro (NRC), Séverin Gaudet (NRC), Sharon Goliath (NRC), Leslie Groer (SciNet), JJ Kavelaars (NRC), Richard Klinger (CANARIE), Lixin Liu (WestGrid), Chris Loken(Compute Ontario), Florent Parent (Calcul Québec), Jennifer West (Dunlap)
• Science Director + Sci/Eng Adv. Ctee (SEAC):– Kristine Spekkens (RMC)
• Ground-Based Astronomy Committee (GAC):– Greg Sivakoff (Alberta)
• ACURA Advisory Council (AACS; voting):– Gilles Joncas (Laval, Chair), Yashar Hezaveh (Montréal),
Doug Johnstone (NRC/Victoria), Erik Rosolowsky (Alberta), Greg Sivakoff (Alberta), Kristine Spekkens (RMC), Ingrid Stairs (UBC), Dave Stevens (MDA)
• Coalition for Canadian Astronomy: – Sara Ellison (CASCA rep), Don Brooks (ACURA rep), Guy Nelson (Industry rep),
Dave Stevens (MDA), Kristine Spekkens (RMC)
Get involved!• Join the SKA Canda mailing list or a Science Working Group:
– Mail [email protected] ; [email protected]• Discuss the SKA with your university admin
www.skatelescope.cawww.skatelescope.org
Exploring the Universe with the world’s largest radio telescope
Budget 2021 did not provide a decision on Canada's participation in
the construction and operation phases of the SKA Phase 1 (=SKA1).
SKA1 construction will likely start on 1 July 2021. A failure by Canada to make a commitment by that time risks a significant loss of return on investment to Canadian industry.
Our Government understands the SKA project timeline and the
importance of Canada's contribution to its success. Consideration is still being given to the options available
for Canada to continue making contributions to the project.