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Black Hole

Lensing of space time around a black hole. At Oxford we study black holes observationally and theoretically on all size and time scales - it is some of our core work.

Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES.

Prof Michael Jones

Professor of Experimental Cosmology

Sub department

  • Astrophysics

Research groups

  • Astronomical instrumentation
  • Cosmology
  • Experimental radio cosmology
  • C-BASS
  • The Square Kilometre Array (SKA)
Mike.Jones@physics.ox.ac.uk
Telephone: 01865 (2)73441
Denys Wilkinson Building, room 758
  • About
  • Publications

Cosmological parameter estimation using Very Small Array data out to l= 1500

\mnras 353 (2004) 747-759

Authors:

R Rebolo, RA Battye, P Carreira, K Cleary, RD Davies, RJ Davis, C Dickinson, R Genova-Santos, K Grainge, CM Gutiérrez, YA Hafez, MP Hobson, ME Jones, R Kneissl, K Lancaster, A Lasenby, JP Leahy, K Maisinger, GG Pooley, N Rajguru, JA Rubi no-Martin, RDE Saunders, RS Savage, A Scaife, PF Scott, A Slosar, P Sosa Molina, AC Taylor, D Titterington, E Waldram, RA Watson, A Wilkinson
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High-sensitivity measurements of the cosmic microwave background power spectrum with the extended Very Small Array

\mnras 353 (2004) 732-746

Authors:

C Dickinson, RA Battye, P Carreira, K Cleary, RD Davies, RJ Davis, R Genova-Santos, K Grainge, CM Gutiérrez, YA Hafez, MP Hobson, ME Jones, R Kneissl, K Lancaster, A Lasenby, JP Leahy, K Maisinger, C Ödman, G Pooley, N Rajguru, R Rebolo, JA Rubi no-Martin, RDE Saunders, RS Savage, A Scaife, PF Scott, A Slosar, P Sosa Molina, AC Taylor, D Titterington, E Waldram, RA Watson, A Wilkinson
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Estimating the bispectrum of the Very Small Array data

Monthly Notices of the Royal Astronomical Society 352:3 (2004) 887-902

Authors:

S Smith, G Rocha, A Challinor, RA Battye, P Carreira, K Cleary, RD Davies, RJ Davis, C Dickinson, R Genova-Santos, K Grainge, CM Gutiérrez, YA Hafez, MP Hobson, ME Jones, R Kneissl, K Lancaster, A Lasenby, JP Leahy, K Maisinger, GG Pooley, N Rajguru, R Rebolo, JA Rubiño-Martin, PS Molina, RDE Saunders, RS Savage, P Scott, A Slosar, AC Taylor, D Titterington, E Waldram, RA Watson

Abstract:

We estimate the bispectrum of the Very Small Array data from the compact and extended configuration observations released in 2002 December, and compare our results with those obtained from Gaussian simulations. There is a slight excess of large bispectrum values for two individual fields, but this does not appear when the fields are combined. Given our expected level of residual point sources, we do not expect these to be the source of the discrepancy. Using the compact configuration data, we put an upper limit of 5400 on the value of F NL, the non-linear coupling parameter, at 95 per cent confidence. We test our bispectrum estimator using non-Gaussian simulations with a known bispectrum, and recover the input values.
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CLOVER - A new instrument for measuring the B-mode polarization of the CMB

XXXIX Rencontres de Moriond, Exploring the Universe, La Thuile (2004)

Authors:

AC Taylor, A Challinor, D Goldie, K Grainge, ME Jones, AN Lasenby, S Withington, G Yassin, WK Gear, L Piccirillo, P Ade, PD Mauskopf, B Maffei, G Pisano

Abstract:

We describe the design and expected performance of Clover, a new instrument designed to measure the B-mode polarization of the cosmic microwave background. The proposed instrument will comprise three independent telescopes operating at 90, 150 and 220 GHz and is planned to be sited at Dome C, Antarctica. Each telescope will feed a focal plane array of 128 background-limited detectors and will measure polarized signals over angular multipoles 20 < l < 1000. The unique design of the telescope and careful control of systematics should enable the B-mode signature of gravitational waves to be measured to a lensing-confusion-limited tensor-to-scalar ratio r~0.005.
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Searching for non-Gaussianity in the Very Small Array data

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 349:3 (2004) 973-982

Authors:

Richard Savage, Richard A Battye, Pedro Carreira, Kieran Cleary, Rod D Davies, Richard J Davis, Clive Dickinson, Ricardo Genova-Santos, Keith Grainge, Carlos M Gutiérrez, Yaser A Hafez, Michael P Hobson, Michael E Jones, Rüdiger Kneissl, Katy Lancaster, Anthony Lasenby, JP Leahy, Klaus Maisinger, Guy G Pooley, Nutan Rajguru, Rafael Rebolo, Graca Rocha, José Alberto Rubiño-Martin, Richard DE Saunders, Paul Scott, Anžce Slosar, Pedro Sosa Molina, Angela C Taylor, David Titterington, Elizabeth Waldram, Robert A Watson
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