SKADS Science Overview

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SKADS Science Overview
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SKADS Science Overview

• SKA Science Case
• SKADS Science Interactions

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Strong Field Tests of Gravity
Binary orbit permits determination of masses
Relativistic effects permit (re) determination of
masses.
ALL MUST AGREE
http//www.jb.man.ac.uk/pulsar/
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Strong Field Tests of Gravity

• Large surveys will find exotic binarys
• 20 000 pulsars in the galaxy
• Edge-on Pulsar Black-hole binary (at least one)
• Probe eg. Frame dragging
• Pulsar timing array
• Gravitational wave background

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Probing the Dark Ages

• When did the first luminous objects form?
• How did they form and over what period of time?

• SKA will detect the Epoch of Reionisation and
  map the evolution history of the first luminous
  objects

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Large Scale Structure
Billions of galaxies!
Local hydrogen
Hydrogen in a distant galaxy
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Precision Cosmology
1 !
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Cosmic Magnetism

• Origin of magnetic fields
• Dynamo?
• Primordial?

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Cradle of Life

• Protoplanetary disks resolved to Earth-like
  orbits
• Organic molecules
• Extrasolar planets
• Extra terrestrial intelligence

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Transient signal
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Transients

• Pulsar is a special case of transient phenomena
  (periodic)
• Giant pulses
• Supernova
• Bursters
• ETI

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The Unknown

• New discoveries always result from observations
  in new parameter space
• sensitivity
• spatial resolution
• spectral resolution
• polarisation
• time domain
• observing speed (multibeaming)
• eg. CMB, pulsars, extra solar planets,

SKA improves all of these
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SKA Science Book
Chris Carilli Steve Rawlings, New
Astronomy Reviews, Vol.48, Elsevier, Dec. 2004
www.skatelescope.org
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SKADS Science Interactions
The Universe
observations
Data analysis (DS2) science goals achievable?
Our understanding of the Universe
brain power
Request spec changeBENCHMARK
Sky Simulation (DS2T1)
Simulated telescope image
EM fields
Technology development (DS4)
Convolution with the telescope (DS2T2)
Data imaging(DS2T2)
measurementsandsimulated performance
voltages
Network simulator (DS3T3)
Technology demonstrators(DS5 DS6)
Backend data
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SKADS Science Interactions
The Universe
NO not technologically feasible NO too expensive
observations
Data analysis (DS2) science goals achievable?
Our understanding of the Universe
brain power
Request spec changeBENCHMARK
Consider trade-offs
Sky Simulation (DS2T1)
Simulated telescope image
EM fields
Technology development (DS4)
Convolution with the telescope (DS2T2)
Data imaging(DS2T2)
measurementsandsimulated performance
voltages
Network simulator (DS3T3)
Technology demonstrators(DS5 DS6)
Backend data
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Evaluation of EMBRACE (DS5T3)

• Demonstrate that EMBRACE can be used for
  astronomical observations
• Pulsar timing
• Multibeam pulsar timing
• HI mapping
• Continuum mapping
• Source tracking
• Observations in the presence of strong sources
  (moon, sun)
• Correlation with long baseline (Westerbork
  Nançay)
• Engineering/characterisation testing
• Beam profile, Tsys, Aeff, etc,

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Recent Hires for Science Effort

• Matt Jarvis DS2T1 Manager at Oxford
• Hans Rainer Klöckner (Oxford for DS2T2)
• Shanmugha Sundaram (JIVE for DS2T2)
• Dharam vir Lal (Max Planck, Bonn for DS2T2)
• Ilsa van Bemmel (Leiden for DS2T2)
• Paola di Matteo (Paris for DS2T1)
• Cardiff Postdoc (imminent selection for DS2/DS3)
• Glasgow postdocs advertised (for DS2T2)
• Cambridge postdocs advertised (for DS2/DS3)

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Meetings and Conferences

• DS2T2 Kickoff at Bonn, 10th February, 2006
• Gravitational waves, radio pulsars and
  astrometry Testing gravity in the next decade,
  Birmingham, 30-31 March
• Cosmology, Galaxy Formation and Astroparticle
  Physics on the pathway to the SKA,Oxford, 10-12
  April
• DS3T3 Kickoff at Oxford 6th June, 2006
• DS2T1 Kick-off at Oxford 7th June, 2006

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SKADS Newsletter

• Issue 1 now out!
• Collectors edition!

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Contact

• Steve Torchinsky
• SKADS Project Scientist
• GEPI, Observatoire de Paris

Phone [phone] Email
projsci_at_skads-eu.org Wiki http//webmail.jb.man.a
c.uk/skadswiki/ Web http//www.skads-eu.org