The Square Kilometre Array (SKA)

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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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Correlated X-Ray and Optical Variability in V404 Cygni in Quiescence

The Astrophysical Journal American Astronomical Society 611:2 (2004) l125-l128

Authors:

RI Hynes, PA Charles, MR Garcia, EL Robinson, J Casares, CA Haswell, AKH Kong, M Rupen, RP Fender, RM Wagner, E Gallo, BAC Eves, T Shahbaz, C Zurita
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The Correlation between Hard X-Ray Peak Flux and Soft X-Ray Peak Flux in the Outburst Rise of Low-Mass X-Ray Binaries

The Astrophysical Journal American Astronomical Society 611:2 (2004) l121-l124

Authors:

Wenfei Yu, Michiel van der Klis, Rob Fender
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Evidence for a Black Hole in the X-ray transient GS 1354-64 (=BW Cir)

(2004)

Authors:

J Casares, C Zurita, T Shahbaz, PA Charles, RP Fender
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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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