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The Quijote CMB Experiment
J. A. Rubino-Martin, R. Rebolo, M. Tucci +37
We present the current status of the QUIJOTE (Q-U-I JOint TEnerife) CMB Experiment, a new instrument which will start operations early 2009 at Teide Observatory, with the aim of ch…
The Arcminute Microkelvin Imager
AMI Consortium, :, J. T. L. Zwart +57
The Arcminute Microkelvin Imager is a pair of interferometer arrays operating with six frequency channels spanning 13.9-18.2 GHz, with very high sensitivity to angular scales 30''-…
Radio source calibration for the VSA and other CMB instruments at around 30 GHz
Yaser A. Hafez, Rod D. Davies, Richard J. Davis +20
Accurate calibration of data is essential for the current generation of CMB experiments. Using data from the Very Small Array (VSA), we describe procedures which will lead to an ac…
Observations of the Corona Borealis supercluster with the superextended Very Small Array: further constraints on the nature of the non-Gaussian CMB cold spot
Ricardo Genova-Santos, Jose Alberto Rubino-Martin, Rafael Rebolo +16
We present interferometric imaging at 33 GHz, with the new superextended configuration of the Very Small Array (VSA), of a very deep decrement in the cosmic microwave background (C…
Multi-frequency spectral analysis of extragalactic radio sources in the 33-GHz VSA catalogue: sources with flattening and upturn spectrum
M. Tucci, J. A. Rubiño-Martin, R. Rebolo +11
We present an analysis of the spectral properties of the extragalactic radio sources in the nearly-complete VSA sample at 33GHz. Data from different surveys are used to study sourc…
Kinematic Sunyaev-Zeldovich Cosmic Microwave Background Temperature Anisotropies Generated by Gas in Cosmic Structures
F. Atrio-Barandela, J. P. Muecket, R. Genova-Santos
If the gas in filaments and halos shares the same velocity field than the luminous matter, it will generate measurable temperature anisotropies due to the Kinematic Sunyaev-Zeldovi…
Constraints on spinning dust towards Galactic targets with the VSA: a tentative detection of excess microwave emission towards 3C396
Anna Scaife, David A. Green, Richard A. Battye +18
We present results from observations made at 33 GHz with the Very Small Array (VSA) telescope towards potential candidates in the Galactic plane for spinning dust emission. In the…
Non-Gaussianity in the Very Small Array CMB maps with Smooth-Goodness-of-fit tests
Jose Alberto Rubino-Martin, Antonio M. Aliaga, R. B. Barreiro +31
(Abridged) We have used the Rayner & Best (1989) smooth tests of goodness-of-fit to study the Gaussianity of the Very Small Array (VSA) data. Out of the 41 published VSA individual…
Millimetric observation of the SZ effect in the Corona Borealis supercluster
E. S. Battistelli, M. De Petris, L. Lamagna +13
We have observed the Corona Borealis Supercluster with the Millimeter and Infrared Testa grigia Observatory (MITO), located in the Italian Alps, at 143, 214, 272, and 353 GHz. We p…
A VSA search for the extended Sunyaev-Zel'dovich Effect in the Corona Borealis Supercluster
Ricardo Genova-Santos, Jose Alberto Rubino-Martin, Rafael Rebolo +16
We present interferometric imaging at 33 GHz of the Corona Borealis supercluster, using the extended configuration of the Very Small Array. A total area of 24 deg^2 has been imaged…
CMB observations from the CBI and VSA: A comparison of coincident maps and parameter estimation methods
N. Rajguru, S. T. Myers, R. A. Battye +32
We present coincident observations of the Cosmic Microwave Background (CMB) from the Very Small Array (VSA) and Cosmic Background Imager (CBI) telescopes. The consistency of the fu…
Source subtraction for the extended Very Small Array and 33-GHz source count estimates
Kieran A. Cleary, Angela C. Taylor, Elizabeth Waldram +16
We describe the source subtraction strategy and observations for the extended Very Small Array, a CMB interferometer operating at 33 GHz. A total of 453 sources were monitored at 3…
Very Small Array observations of the Sunyaev-Zel'dovich effect in nearby galaxy clusters
Katy Lancaster, Ricardo Genova-Santos, Nelson Falcon +10
We present VSA observations (~34GHz) on scales ~20 arcmin towards a complete, X-ray-flux-limited sample of seven clusters at redshift z<0.1. Four have significant SZ detections in…
Cosmological parameter estimation using Very Small Array data out to l=1500
Rafael Rebolo, Richard A. Battye, Pedro Carreira +29
We estimate cosmological parameters using data obtained by the Very Small Array (VSA) in its extended configuration, in conjunction with a variety of other CMB data and external pr…
High sensitivity measurements of the CMB power spectrum with the extended Very Small Array
Clive Dickinson, Richard A. Battye, Kieran Cleary +29
We present deep Ka-band ( GHz) observations of the CMB made with the extended Very Small Array (VSA). This configuration produces a naturally weighted synthesized FWHM…
Estimating the bispectrum of the Very Small Array data
Sarah Smith, Graca Rocha, Anthony Challinor +30
We estimate the bispectrum of the Very Small Array data from the compact and extended configuration observations released in December 2002, and compare our results to those obtaine…
Searching for non-Gaussianity in the VSA data
Richard Savage, Richard A. Battye, Pedro Carreira +28
We have tested Very Small Array (VSA) observations of three regions of sky for the presence of non-Gaussianity, using high-order cumulants, Minkowski functionals, a wavelet-based t…
Cosmological parameter estimation and Bayesian model comparison using VSA data
Anze Slosar, Pedro Carreira, Kieran Cleary +28
We constrain the basic comological parameters using the first observations by the Very Small Array (VSA) in its extended configuration, together with existing cosmic microwave back…
The CMB power spectrum out to l=1400 measured by the VSA
Keith Grainge, Pedro Carreira, Kieran Cleary +28
We have observed the cosmic microwave background (CMB) in three regions of sky using the Very Small Array (VSA) in an extended configuration with antennas of beamwidth 2 degrees at…