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91探花
Black Hole

Lensing of space time around a black hole. At 91探花 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

CLOVER: The CMB Polarization Observer

EAS Publications Series EDP Sciences 14 (2005) 251-256

Authors:

B Maffei, PAR Ade, C Calderon, AD Challinor, P De Bernardis, L Dunlop, WK Gear, Y Giraud-H茅raud, DJ Goldie, KJB Grainge, KG Isaak, B Johnson, ME Jones, AN Lasenby, PD Mauskopf, SJ Melhuish, A Orlando, L Piccirillo, G Pisano, AC Taylor, S Withington, G Yassin

A TES finline detector for bolometric interferometry

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 5498 (2004) 362-370

Authors:

Louisa Dunlop, Ghassan Yassin, David J Goldie, Stafford Withington, Mike Jones

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 Guti茅rrez, 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

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 Guti茅rrez, YA Hafez, MP Hobson, ME Jones, R Kneissl, K Lancaster, A Lasenby, JP Leahy, K Maisinger, C 脰dman, 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

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 Guti茅rrez, YA Hafez, MP Hobson, ME Jones, R Kneissl, K Lancaster, A Lasenby, JP Leahy, K Maisinger, GG Pooley, N Rajguru, R Rebolo, JA Rubi帽o-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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