Search Results - "Vielva, P"

Cosmic Birefringence from the Planck Data Release 4 by Diego-Palazuelos, P, Eskilt, J R, Minami, Y, Tristram, M, Sullivan, R M, Banday, A J, Barreiro, R B, Eriksen, H K, Górski, K M, Keskitalo, R, Komatsu, E, Martínez-González, E, Scott, D, Vielva, P, Wehus, I K

“…We search for the signature of parity-violating physics in the cosmic microwave background, called cosmic birefringence, using the Planck data release 4. We…”
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Multiresolution internal template cleaning: an application to the Wilkinson Microwave Anisotropy Probe 7-yr polarization data by Fernández-Cobos, R., Vielva, P., Barreiro, R. B., Martínez-González, E.

“…The cosmic microwave background (CMB) radiation data obtained by different experiments contain, besides the desired signal, a superposition of microwave sky…”
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Searching for a dipole modulation in the large-scale structure of the Universe by Fernández-Cobos, R., Vielva, P., Pietrobon, D., Balbi, A., Martínez-González, E., Barreiro, R. B.

“…Several statistical anomalies in the cosmic microwave background (CMB) temperature anisotropies seem to defy the assumption of a homogeneous and isotropic…”
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Detection of a non-Gaussian spot in WMAP by Cruz, M., Martínez-González, E., Vielva, P., Cayón, L.

“…An extremely cold and big spot in the Wilkinson Microwave Anisotropy Probe (WMAP) 1-yr data is analysed. Our work is a continuation of a previous paper by…”
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The non-Gaussian cold spot in Wilkinson Microwave Anisotropy Probe: significance, morphology and foreground contribution by Cruz, M., Tucci, M., Martínez-González, E., Vielva, P.

“…The non-Gaussian cold spot in the 1-yr Wilkinson Microwave Anisotropy Probe (WMAP) data, described by Vielva et al. and Cruz et al., is analysed in detail in…”
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Detection of spectral variations of Anomalous Microwave Emission with QUIJOTE and C-BASS by Cepeda-Arroita, R, Harper, S E, Dickinson, C, Rubiño-Martín, J A, Génova-Santos, R T, Taylor, Angela C, Pearson, T J, Ashdown, M, Barr, A, Barreiro, R B, Casaponsa, B, Casas, F J, Chiang, H C, Fernandez-Cobos, R, Grumitt, R D P, Guidi, F, Heilgendorff, H M, Herranz, D, Jew, L R P, Jonas, J L, Jones, Michael E, Lasenby, A, Leech, J, Leahy, J P, Martínez-González, E, Peel, M W, Piccirillo, L, Poidevin, F, Readhead, A C S, Rebolo, R, Ruiz-Granados, B, Sievers, J, Vansyngel, F, Vielva, P, Watson, R A

“…ABSTRACT Anomalous Microwave Emission (AME) is a significant component of Galactic diffuse emission in the frequency range 10–$60\, \mathrm{GHz}$ and a new…”
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Exploring two-spin internal linear combinations for the recovery of the CMB polarization by Fernández-Cobos, R., Marcos-Caballero, A., Vielva, P., Martínez-González, E., Barreiro, R. B.

“…We present a methodology to recover cosmic microwave background (CMB) polarization in which the quantity P = Q + iU is linearly combined at different…”
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QUIJOTE scientific results – V. The microwave intensity and polarization spectra of the Galactic regions W49, W51 and IC443 by Tramonte, D, Génova-Santos, R T, Rubiño-Martín, J A, Vielva, P, Poidevin, F, López-Caraballo, C H, Peel, M W, Ashdown, M, Artal, E, Barreiro, R B, Casas, F J, de la Hoz, E, Fernández-Torreiro, M, Guidi, F, Herranz, D, Hoyland, R J, Lasenby, A N, Martinez-Gonzalez, E, Piccirillo, L, Rebolo, R, Ruiz-Granados, B, Vansyngel, F, Watson, R A

“…ABSTRACT We present new intensity and polarization maps obtained with the QUIJOTE experiment towards the Galactic regions W49, W51 and IC443, covering the…”
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QUIJOTE scientific results – X. Spatial variations of Anomalous Microwave Emission along the Galactic plane by Fernández-Torreiro, M, Rubiño-Martín, J A, López-Caraballo, C H, Génova-Santos, R T, Peel, M W, Guidi, F, Harper, S E, Artal, E, Ashdown, M, Barreiro, R B, Casas, F J, de la Hoz, E, Herranz, D, Hoyland, R, Lasenby, A, Martínez-Gonzalez, E, Piccirillo, L, Poidevin, F, Rebolo, R, Ruiz-Granados, B, Tramonte, D, Vansyngel, F, Vielva, P, Watson, R A

“…ABSTRACT Anomalous microwave emission (AME) is an important emission component between 10 and 60 GHz that is not yet fully understood. It seems to be…”
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QUIJOTE Scientific Results – XVII. Studying the anomalous microwave emission in the Andromeda Galaxy with QUIJOTE-MFI by Fernández-Torreiro, M, Génova-Santos, R T, Rubiño-Martín, J A, López-Caraballo, C H, Peel, M W, Arce-Tord, C, Rebolo, R, Artal, E, Ashdown, M, Barreiro, R B, Casas, F J, de la Hoz, E, Guidi, F, Herranz, D, Hoyland, R, Lasenby, A, Martínez-Gonzalez, E, Piccirillo, L, Poidevin, F, Ruiz-Granados, B, Tramonte, D, Vansyngel, F, Vielva, P, Watson, R A

“…ABSTRACT The Andromeda Galaxy (M31) is the Local Group galaxy that is most similar to the Milky Way (MW). The similarities between the two galaxies make M31…”
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QUIJOTE scientific results – XIII. Intensity and polarization study of the microwave spectra of supernova remnants in the QUIJOTE-MFI wide survey: CTB 80, Cygnus Loop, HB 21, CTA 1, Tycho, and HB 9 by López-Caraballo, C H, Ruiz-Granados, B, Génova-Santos, R T, Fernández-Torreiro, M, Rubiño-Martín, J A, Peel, M W, Poidevin, F, Artal, E, Ashdown, M, Barreiro, R B, Casas, F J, de la Hoz, E, González-González, R, Guidi, F, Herranz, D, Hoyland, R, Lasenby, A, Martínez-González, E, Piccirillo, L, Rebolo, R, Tramonte, D, Vansyngel, F, Vielva, P, Watson, R A

“…ABSTRACT We use the new QUIJOTE-MFI wide survey (11, 13, 17, and 19 GHz) to produce spectral energy distributions (SEDs), on an angular scale of 1°, of the…”
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QUIJOTE scientific results – VIII. Diffuse polarized foregrounds from component separation with QUIJOTE-MFI by de la Hoz, E, Barreiro, R B, Vielva, P, Martínez-González, E, Rubiño-Martín, J A, Casaponsa, B, Guidi, F, Ashdown, M, Génova-Santos, R T, Artal, E, Casas, F J, Fernández-Cobos, R, Fernández-Torreiro, M, Herranz, D, Hoyland, R J, Lasenby, A N, López-Caniego, M, López-Caraballo, C H, Peel, M W, Piccirillo, L, Poidevin, F, Rebolo, R, Ruiz-Granados, B, Tramonte, D, Vansyngel, F, Watson, R A

“…ABSTRACT We derive linearly polarized astrophysical component maps in the Northern Sky from the QUIJOTE-MFI data at 11 and 13 GHz in combination with the…”
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Constraints on fNL and gNL from the analysis of the N-pdf of the CMB large-scale anisotropies by Vielva, P., Sanz, J. L.

“…In this paper, we extend a previous work where we presented a method based on the N-point probability density function (pdf) to study the Gaussianity of the…”
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QUIJOTE scientific results – VII. Galactic AME sources in the QUIJOTE-MFI northern hemisphere wide survey by Poidevin, F, Génova-Santos, R T, Rubiño-Martín, J A, López-Caraballo, C H, Watson, R A, Artal, E, Ashdown, M, Barreiro, R B, Casas, F J, de la Hoz, E, Fernández-Torreiro, M, Guidi, F, Herranz, D, Hoyland, R J, Lasenby, A N, Martinez-Gonzalez, E, Peel, M W, Piccirillo, L, Rebolo, R, Ruiz-Granados, B, Tramonte, D, Vansyngel, F, Vielva, P

“…ABSTRACT The QUIJOTE-MFI Northern Hemisphere Wide Survey has provided maps of the sky above declinations −30° at 11, 13, 17, and 19 GHz. These data are…”
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On the recovery of ISW fluctuations using large-scale structure tracers and CMB temperature and polarization anisotropies by Bonavera, L., Barreiro, R. B., Marcos-Caballero, A., Vielva, P.

“…In this work we present a method to extract the signal induced by the integrated Sachs-Wolfe (ISW) effect in the cosmic microwave background (CMB). It makes…”
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QUIJOTE scientific results – VI. The Haze as seen by QUIJOTE by Guidi, F, Génova-Santos, R T, Rubiño-Martín, J A, Peel, M W, Fernández-Torreiro, M, López-Caraballo, C H, Vignaga, R, de la Hoz, E, Vielva, P, Watson, R A, Ashdown, M, Dickinson, C, Artal, E, Barreiro, R B, Casas, F J, Herranz, D, Hoyland, R J, Lasenby, A N, Martinez-Gonzalez, E, Piccirillo, L, Poidevin, F, Rebolo, R, Ruiz-Granados, B, Tramonte, D, Vansyngel, F

“…ABSTRACT The Haze is an excess of microwave intensity emission surrounding the Galactic Centre. It is spatially correlated with the γ-ray Fermi bubbles, and…”
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Anomalous variance in the WMAP data and Galactic foreground residuals by Cruz, M., Vielva, P., Martínez-González, E., Barreiro, R. B.

“…A previous work estimated the cosmic microwave background (CMB) variance from the 3-yr Wilkinson Microwave Anisotropy Probe (WMAP) data, finding a lower value…”
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Detection of Non-Gaussianity in the Wilkinson Microwave Anisotropy Probe First-Year Data Using Spherical Wavelets by Vielva, P, Martínez-González, E, Barreiro, R. B, Sanz, J. L, Cayón, L

“…A non-Gaussian detection in the Wilkinson Microwave Anisotropy Probe (WMAP) first-year data is reported. The detection has been found in the combined Q-V-W map…”
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Cosmic Microwave Background Feature Consistent with a Cosmic Texture by Cruz, M, Turok, N, Vielva, P, Martínez-González, E, Hobson, M

“…The Cosmic Microwave Background provides our most ancient image of the universe and our best tool for studying its early evolution. Theories of high-energy…”
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The Non-Gaussian Cold Spot in the 3 Year Wilkinson Microwave Anisotropy Probe Data by Cruz, M, Cayón, L, Martínez-González, E, Vielva, P, Jin, J

“…The non-Gaussian cold spot detected in wavelet space in the WMAP 1 yr data is detected again in the co-added WMAP 3 yr data at the same position (b = -57, l =…”
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