Anisotropy of the Cosmic Microwave Background

    General
    Description

    The general goal of this project is to determine and characterize the spatial and spectral variations in the temperature and polarisation of the Cosmic Microwave Background in angular scales from several arcminutes to several degrees. The primordial matter density fluctuations which originated the structure in the matter distribution of the present Universe, left imprinted inhomogeneities in the CMB temperature distribution, that are mathematically encoded in the so-called angular power spectrum. Initially, pioneering experiments like the COBE satellite (whose results deserved the Nobel Prize on Physics 2006) or the Tenerife CMB experiment demonstrated in the 90s that the level of anisotropy was about one part in a hundred thousands at angular scales of several degrees. Obtaining CMB maps at various frequencies with sufficient sensitivity to detect structures at this level is of fundamental importance to extract information on the power spectrum of primordial density fluctuations, to prove the existence of an inflationary period in the Early Universe and to establish the ultimate nature of the dark matter and dark energy. Recently, the WMAP satellite obtained CMB maps with unprecedented sensitivity that allowed to set restrictions on a large number of cosmological parameters.

    The focus of this project is to undertake measurements at gradually higher angular resolutions and sensitivities, by using different experiments that have been operative from the Teide Observatory, like the Tenerife experiment, the IAC-Bartol experiment or the JBO-IAC interferometer. More recently, the Very Small Array interferometer performed observations between 1999 and 2008. At that time the COSMOSOMAS experiment was also operative, its goal having been not only the characterization of the primary CMB anisotropies but also the study and characterization of the Galactic foreground contamination. In more recent years the activity in this project has focused in the scientific exploitation of data from the Planck satellite, and in the development, operation and exploitation of the QUIJOTE experiment. Now that the Planck mission has been completed and finished, the activity is focused in the scientific exploitation of QUIJOTE, in the development of new instrumentation for QUIJOTE, and in in the development of new experiments that are being deployed or that will be deployed at the Teide Observatory: GroundBRID, STRIP, KISS and TMS.

    Principal investigator
    Project staff
    Collaborators
    Dr.
    Fernando Atrio Barandela
    Dr.
    Enrique Martínez González
    Dr.
    Carlos Hernández Monteagudo
    1. 6-7 june: XV QUIJOTE Scientific Meeting (IFCA, Santander)
    2. July: publication of the final results (12 articles) and data from the Planck satellite.
    3. 15-19 october: "CMB foregrounds for B-mode studies" conference, organised within the Radioforegrounds proyect, IV AME workshop, and XVI QUIJOTE Scientific Meeting (all these eventes were celebrated at the IAC)
    4. October: installation of the dome of the GroundBIRD experiment, at the Teide Observatory.
    5. December: aceptation of the third QUIJOTE scientific article (Poidevin et al. 2019)

    Related publications

    • Probing cosmic inflation with the LiteBIRD cosmic microwave background polarization survey

      LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch in

      Allys, E. et al.

      Advertised on:

      4
      2023
      Citations
      2
    • QUIJOTE scientific results - X. Spatial variations of Anomalous Microwave Emission along the Galactic plane

      Anomalous microwave emission (AME) is an important emission component between 10 and 60 GHz that is not yet fully understood. It seems to be ubiquitous in our Galaxy and is observed at a broad range of angular scales. Here we use the new QUIJOTE-MFI wide survey data at 11, 13, 17, and 19 GHz to constrain the AME in the Galactic plane (|b| < 10°) on

      Fernández-Torreiro, M. et al.

      Advertised on:

      11
      2023
      Citations
      1
    • Tensor-to-scalar ratio forecasts for extended LiteBIRD frequency configurations

      LiteBIRD is a planned JAXA-led cosmic microwave background (CMB) B-mode satellite experiment aiming for launch in the late 2020s, with a primary goal of detecting the imprint of primordial inflationary gravitational waves. Its current baseline focal-plane configuration includes 15 frequency bands between 40 and 402 GHz, fulfilling the mission

      Fuskeland, U. et al.

      Advertised on:

      8
      2023
      Citations
      6
    • Sensitivity Modeling for LiteBIRD

      LiteBIRD is a future satellite mission designed to observe the polarization of the cosmic microwave background radiation in order to probe the inflationary universe. LiteBIRD is set to observe the sky using three telescopes with transition-edge sensor bolometers. In this work we estimated the LiteBIRD instrumental sensitivity using its current

      Hasebe, T. et al.

      Advertised on:

      6
      2023
      Citations
      0
    • Probing cosmic inflation with the LiteBIRD cosmic microwave background polarization survey

      LiteBIRD, the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics. The Japan Aerospace Exploration Agency (JAXA) selected LiteBIRD in May 2019 as a strategic large-class (L-class) mission, with an expected launch in

      LiteBIRD Collaboration et al.

      Advertised on:

      4
      2023
      Citations
      143
    • QUIJOTE scientific results - VII. Galactic AME sources in the QUIJOTE-MFI northern hemisphere wide survey

      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 combined with ancillary data to produce Spectral Energy Distributions in intensity in the frequency range 0.4-3 000 GHz on a sample of 52 candidate compact sources harbouring anomalous microwave emission

      Poidevin, F. et al.

      Advertised on:

      3
      2023
      Citations
      5
    • QUIJOTE scientific results - IX. Radio sources in the QUIJOTE-MFI wide survey maps

      We present the catalogue of Q-U-I JOint TEnerife (QUIJOTE) Wide Survey radio sources extracted from the maps of the Multi-Frequency Instrument compiled between 2012 and 2018. The catalogue contains 786 sources observed in intensity and polarization, and is divided into two separate sub-catalogues: one containing 47 bright sources previously studied

      Herranz, D. et al.

      Advertised on:

      3
      2023
      Citations
      2
    • QUIJOTE scientific results - VIII. Diffuse polarized foregrounds from component separation with QUIJOTE-MFI

      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 Wilkinson Microwave Anisotropy Probe K and Ka bands (23 and 33 GHz) and all Planck polarized channels (30-353 GHz), using the parametric component separation method B-SeCRET. The addition of QUIJOTE-MFI

      de la Hoz, E. et al.

      Advertised on:

      3
      2023
      Citations
      6
    • QUIJOTE scientific results - V. The microwave intensity and polarization spectra of the Galactic regions W49, W51 and IC443

      We present new intensity and polarization maps obtained with the QUIJOTE experiment towards the Galactic regions W49, W51 and IC443, covering the frequency range from 10 to 20 GHz at $\sim 1\, \text{deg}$ angular resolution, with a sensitivity in the range 35-79 $\mu \text{K}\, \text{beam}^{-1}$ for total intensity and 13-23 $\mu \text{K}\, \text

      Tramonte, D. et al.

      Advertised on:

      3
      2023
      Citations
      4
    • QUIJOTE scientific results - VI. The Haze as seen by QUIJOTE

      The Haze is an excess of microwave intensity emission surrounding the Galactic Centre. It is spatially correlated with the γ-ray Fermi bubbles, and with the S-PASS radio polarization plumes, suggesting a possible common provenance. The models proposed to explain the origin of the Haze, including energetic events at the Galactic Centre and dark

      Guidi, F. et al.

      Advertised on:

      3
      2023
      Citations
      4
    • QUIJOTE scientific results - IV. A northern sky survey in intensity and polarization at 10-20 GHz with the multifrequency instrument

      We present QUIJOTE intensity and polarization maps in four frequency bands centred around 11, 13, 17, and 19 GHz, and covering approximately 29 000 deg2, including most of the northern sky region. These maps result from 9000 h of observations taken between May 2013 and June 2018 with the first QUIJOTE multifrequency instrument (MFI), and have

      Rubiño-Martín, J. A. et al.

      Advertised on:

      3
      2023
      Citations
      17
    • Constraints on primordial magnetic fields from their impact on the ionization history with Planck 2018

      We update and extend our previous cosmic microwave background anisotropy constraints on primordial magnetic fields through their dissipation by ambipolar diffusion and magnetohydrodynamic decaying turbulence effects on the post-recombination ionization history. We derive the constraints using the latest Planck 2018 data release which improves on

      Paoletti, D. et al.

      Advertised on:

      12
      2022
      Citations
      10
    • The BINGO Project. III. Optical design and optimization of the focal plane

      Context. The Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) telescope was designed to measure the fluctuations of the 21 cm radiation arising from the hyperfine transition of neutral hydrogen. It is also aimed at measuring the baryon acoustic oscillations (BAO) from such fluctuations, thereby serving as a pathfinder

      Abdalla, Filipe B. et al.

      Advertised on:

      8
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      Citations
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    • The BINGO project. IV. Simulations for mission performance assessment and preliminary component separation steps

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      Liccardo, Vincenzo et al.

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      8
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    • The BINGO project. II. Instrument description

      Context. The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (H I signal) in different redshifts is an important tool for modern cosmology. However, detecting this faint signal with non-cryogenic receivers in single-dish telescopes is a challenging task. The BINGO (Baryon Acoustic Oscillations from

      Wuensche, Carlos A. et al.

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      8
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    • The BINGO project. V. Further steps in component separation and bispectrum analysis

      Context. Observing the neutral hydrogen distribution across the Universe via redshifted 21 cm line intensity mapping constitutes a powerful probe for cosmology. However, the redshifted 21 cm signal is obscured by the foreground emission from our Galaxy and other extragalactic foregrounds. This paper addresses the capabilities of the BINGO survey to

      Fornazier, Karin S. F. et al.

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      8
      2022
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      19
    • The BINGO project. I. Baryon acoustic oscillations from integrated neutral gas observations

      Context. Observations of the redshifted 21-cm line of neutral hydrogen (H I) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic H I and learn about cosmology. Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) is a new unique radio telescope designed to be

      Abdalla, Elcio et al.

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      8
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    • Fundamental physics with ESPRESSO: Constraints on Bekenstein and dark energy models from astrophysical and local probes<SUP>*</SUP>

      Dynamical scalar fields in an effective four-dimensional field theory are naturally expected to couple to the rest of the theory's degrees of freedom, unless some new symmetry is postulated to suppress these couplings. In particular, a coupling to the electromagnetic sector will lead to spacetime variations of the fine-structure constant, α

      Martins, C. J. A. P. et al.

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      6
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      6
    • Searching for dark-matter waves with PPTA and QUIJOTE pulsar polarimetry

      The polarization of photons emitted by astrophysical sources might be altered as they travel through a dark matter medium composed of ultra light axion-like particles (ALPs). In particular, the coherent oscillations of the ALP background in the galactic halo induce a periodic change on the polarization of the electromagnetic radiation emitted by

      Castillo, Andrés et al.

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      6
      2022
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      11
    • The C-Band All-Sky Survey (C-BASS): template fitting of diffuse galactic microwave emission in the northern sky

      The C-Band All-Sky Survey (C-BASS) has observed the Galaxy at 4.76 GHz with an angular resolution of 0${_{.}^{\circ}}$73 full-width half-maximum, and detected Galactic synchrotron emission with high signal-to-noise ratio over the entire northern sky (δ > -15○). We present the results of a spatial correlation analysis of Galactic foregrounds at mid

      Harper, S. E. et al.

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      7
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    Related talks

    No related talks were found.

    Related conferences

    • XIX Canary Islands Winter School of Astrophysics "The Cosmic Microwave | Background: from quantum fluctuations to the present Universe"

      Tenerife, Canary Islands
      Spain
      Date
      -
      Past
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