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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…
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…
The non-Gaussian Cold Spot in WMAP: significance, morphology and foreground contribution
M. Cruz, M. Tucci, E. Martinez-Gonzalez +1
The non--Gaussian cold spot in the 1-year WMAP data, described in Vielva et al. and Cruz et al., is analysed in detail in the present paper. First of all, we perform a more rigorou…
Limits on the detectability of the CMB B-mode polarization imposed by foregrounds
M. Tucci, E. Martinez-Gonzalez, P. Vielva +1
We investigate which practical constraints are imposed by foregrounds to the detection of the B-mode polarization generated by gravitational waves in the case of experiments of the…