Año de inicio
1986
Unidad organizativa
Institución organizadora
Subvenciones relacionadas:
General
Descripción
El objetivo general de este proyecto es determinar y estudiar las variaciones espaciales y espectrales en la temperatura del Fondo Cósmico de Microondas y en su Polarización en un amplio rango de escalas angulares que van desde pocos minutos de arco hasta varios grados. Las fluctuaciones primordiales en la densidad de materia, que dieron origen a las estructuras en la distribución de materia del Universo actual, debieron dejar una huella impresa en el Fondo de Microondas en forma de irregularidades en la distribución espacial de su temperatura. Experimentos pioneros como COBE (galardonados dos de sus investigadores principales con el Premio Nobel de Física en 2006) o Tenerife demostraron que el nivel de anisotropía en escalas angulares de varios grados está en torno a una parte en cien mil. La obtención de mapas del Fondo de Microondas en varias frecuencias y con sensibilidad suficiente para detectar estructuras a estos niveles es fundamental para obtener información sobre el espectro de potencias de las fluctuaciones primordiales en densidad, la existencia de un periodo inflacionario en el Universo muy temprano y la naturaleza de la materia y energía oscura. Más recientemente el satélite WMAP ha obtenido mapas del Fondo Cósmico de Microondas que han permitido establecer cotas sobre múltiples parámetros cosmológicos con precisiones mejores que el 10%.
El Proyecto concentra sus esfuerzos en realizar medidas a más alta resolución espacial y sensibilidad que las obtenidas por este satélite. En el pasado se utilizaron con este fin experimentos como Tenerife, el IAC-Bartol o el interferómetro JBO-IAC, todos ellos desde el Observatorio del Teide. Más recientemente, el experimento interferométrico Very Small Array a 33 GHz fue operativo entre 1999 y 2008. Durante este tiempo también realizó observaciones desde el observatorio del Teide el experimento COSMOSOMAS, cuyo objetivo era, además de la medida de las anisotropías del CMB, la caracterización de los contaminantes galácticos.
En los últimos 10 la actividad de este proyecto se ha centrado en la explotación científica de los datos del satélite Planck, y en la construcción, la operación y la explotación científica de los datos del experimento QUIJOTE. En la actualidad, una vez el proyecto Planck ha finalizado, la actividad se centra en la explotación científica de QUIJOTE, en el desarrollo y construcción de nueva instrumentación para el proyecto QUIJOTE, y en el desarrollo de nuevos experimentos que están siendo o que serán próximamente instalados en el Observatorio del Teide: GroundBIRD, LSPE-STRIP y TMS.
Miembros
Investigador principal
Prof.
Rafael
Rebolo López
Personal del proyecto
Ricardo Tanausú
Genova Santos
Carlos Manuel
Gutiérrez de La Cruz
José Alberto
Rubiño Martín
Frédéric Nicolas David
Poidevin
Colaboradores
Prof.
Anthony Lasenby
Dr.
Fernando Atrio Barandela
Dr.
Enrique Martínez González
Dr.
Carlos Hernández Monteagudo
Resultados
- 6-7 de junio: XV reunión científica del Consorcio QUIJOTE (IFCA, Santander)
- Julio: publicación de los resultados (12 artículos) y de los datos finales del satélite Planck.
- 15-19 de octubre: Congreso "CMB foregrounds for B-mode studies", dentro del proyecto Radioforegrounds, IV AME workshop, y XVI reunión científica del Consorcio QUIJOTE (todos estos eventos celebrados en el IAC).
- Octubre: instalación el observatorio del Teide de la cúpula de GroundBIRD.
- Diciembre: aceptación del tercer artículo científico de QUIJOTE (Poidevin et al. 2019)
Actividad científica
Publicaciones relacionadas
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Planck 2013 results. XXVIII. The Planck Catalogue of Compact SourcesThe Planck Catalogue of Compact Sources (PCCS) is the catalogue of sources detected in the first 15 months of Planck operations, the “nominal” mission. It consists of nine single-frequency catalogues of compact sources, both Galactic and extragalactic, detected over the entire sky. The PCCS covers the frequency range 30–857 GHz with higherPlanck Collaboration et al.
Fecha de publicación:
112014 -
Planck 2013 results. XXX. Cosmic infrared background measurements and implications for star formationWe present new measurements of cosmic infrared background (CIB) anisotropies using Planck. Combining HFI data with IRAS, the angular auto- and cross-frequency power spectrum is measured from 143 to 3000 GHz, and the auto-bispectrum from 217 to 545 GHz. The total areas used to compute the CIB power spectrum and bispectrum are about 2240 and 4400Planck Collaboration et al.
Fecha de publicación:
112014 -
Comparison of Prestellar Core Elongations and Large-scale Molecular Cloud Structures in the Lupus I RegionTurbulence and magnetic fields are expected to be important for regulating molecular cloud formation and evolution. However, their effects on sub-parsec to 100 parsec scales, leading to the formation of starless cores, are not well understood. We investigate the prestellar core structure morphologies obtained from analysis of the Herschel-SPIRE 350Poidevin, F. et al.
Fecha de publicación:
82014 -
PRISM (Polarized Radiation Imaging and Spectroscopy Mission): an extended white paperPRISM (Polarized Radiation Imaging and Spectroscopy Mission) was proposed to ESA in May 2013 as a large-class mission for investigating within the framework of the ESA Cosmic Vision program a set of important scientific questions that require high resolution, high sensitivity, full-sky observations of the sky emission at wavelengths ranging fromAndré, P. et al.
Fecha de publicación:
22014 -
Ft-Ir Spectra of Fullerenes C76, C78 and C84 At Temperatures Comprised Between -180°C and +250°CThe FT-IR spectra of C76, C78 and C84 fullerenes were recorded in the temperature range comprised between -180°C and +250°C. The purpose of the work is to provide reference infrared spectra for searching higher fullerene homologues in space after the recent and successful discovery of C60 and C70 in a series of different astrophysical objects.Iglesias-Groth, S. et al.
Fecha de publicación:
122013 -
Planck intermediate results. XII: Diffuse Galactic components in the Gould Belt systemWe perform an analysis of the diffuse low-frequency Galactic components in the southern part of the Gould Belt system (130° ≤ l ≤ 230° and -50° ≤ b ≤ -10°). Strong ultra-violet flux coming from the Gould Belt super-association is responsible for bright diffuse foregrounds that we observe from our position inside the system and that can help usPlanck Collaboration et al.
Fecha de publicación:
92013 -
A Search for near Infrared Bands of the Fullerene Cation C_{60}^+ in the Protoplanetary Nebula IRAS 01005+7910IRAS 01005+7910 is a carbon-rich protoplanetary nebula with a recently reported detection of mid-IR vibrational transitions of the fullerene C60 by Zhang and Kwok. We present new high spectral resolution (R ~ 57, 000) observations of this object obtained at the 3.6 m Telescopio Nazionale Galileo, showing the presence of two absorption bands at 9577Iglesias-Groth, S. et al.
Fecha de publicación:
102013 -
Planck intermediate results. IX. Detection of the Galactic haze with PlanckUsing precise full-sky observations from Planck, and applying several methods of component separation, we identify and characterise the emission from the Galactic "haze" at microwave wavelengths. The haze is a distinct component of diffuse Galactic emission, roughly centered on the Galactic centre, and extends to | b | ~ 35-50° in Galactic latitudePlanck Collaboration et al.
Fecha de publicación:
62013 -
Observations of the Polarisation of the Anomalous Microwave Emission: A ReviewThe observational status of the polarisation of the anomalous microwave emission (AME) is reviewed, both for individual compact Galactic regions as well as for the large-scale Galactic emission. There are six Galactic regions with existing polarisation constraints in the relevant range of 10?40?GHz: four dust clouds (Perseus, ? Ophiuchi, LDN1622Rubiño-Martín, J. A. et al.
Fecha de publicación:
02012 -
Planck intermediate results. VI. The dynamical structure of PLCKG214.6+37.0, a Planck discovered triple system of galaxy clustersThe survey of galaxy clusters performed by Planck through the Sunyaev-Zeldovich effect has already discovered many interesting objects, thanks to its full sky coverage. One of the SZ candidates detected inthe early months of the mission near to the signal-to-noise threshold, PLCKG214.6+37.0, was later revealed by XMM-Newton to be a triple system ofPlanck Collaboration et al.
Fecha de publicación:
22013 -
Planck intermediate results. II. Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clustersA comparison is presented of Sunyaev-Zeldovich measurements for 11 galaxy clusters as obtained by Planck and by the ground-based interferometer, the Arcminute Microkelvin Imager. Assuming a universal spherically-symmetric Generalised Navarro, Frenk and White (GNFW) model for the cluster gas pressure profile, we jointly constrain the integratedPlanck Collaboration et al.
Fecha de publicación:
22013 -
Planck intermediate results. III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signalWe examine the relation between the galaxy cluster mass M and Sunyaev-Zeldovich (SZ) effect signal DA2 Y500 for a sample of 19 objects for which weak lensing (WL) mass measurements obtained from Subaru Telescope data are available in the literature. Hydrostatic X-ray masses are derived from XMM-Newton archive data, and the SZ effect signal isMandolesi, N. et al.
Fecha de publicación:
22013 -
Planck intermediate results. V. Pressure profiles of galaxy clusters from the Sunyaev-Zeldovich effectTaking advantage of the all-sky coverage and broadfrequency range of the Planck satellite, we study the Sunyaev-Zeldovich (SZ) and pressure profiles of 62 nearby massive clusters detected at high significance in the 14-month nominal survey. Careful reconstruction of the SZ signal indicates that most clusters are individually detected at least outDelabrouille, J. et al.
Fecha de publicación:
22013 -
Planck intermediate results. VII. Statistical properties of infrared and radio extragalactic sources from the Planck Early Release Compact Source Catalogue at frequencies between 100 and 857 GHzWe make use of the Planck all-sky survey to derive number counts and spectral indices of extragalactic sources - infrared and radio sources - from the Planck Early Release Compact Source Catalogue (ERCSC) at 100 to 857 GHz (3 mm to 350 μm). Three zones (deep, medium and shallow) of approximately homogeneous coverage are used to permit a clean andDavis, R. J. et al.
Fecha de publicación:
22013 -
Planck intermediate results. VIII. Filaments between interacting clustersContext. About half of the baryons of the Universe are expected to be in the form of filaments of hot and low-density intergalactic medium. Most of these baryons remain undetected even by the most advanced X-ray observatories, which are limited in sensitivity to the diffuse low-density medium. Aims: The Planck satellite has provided hundreds ofZacchei, A. et al.
Fecha de publicación:
22013 -
Optical spectroscopy of V1123 Tauri and its visual companionWe present long-slit intermediate resolution spectroscopy of the visual binary V1123. We confirm that component A is a W UMa eclipsing star with spectral type G0V, while component B is a K0V. We infer a distance to the system of 125 pc, and then a projected separation between both components of 520 AU. The difference in radial velocities ofGutiérrez, Carlos M.
Fecha de publicación:
22009 -
RICO: A New Approach for Fast and Accurate Representation of the Cosmological Recombination HistoryWe present RICO, a code designed to compute the ionization fraction of the universe during the epoch of hydrogen and helium recombination with an unprecedented combination of speed and accuracy. This is accomplished by training the machine learning code PICO on the calculations of a multilevel cosmological recombination code which self-consistentlyFendt, W. A. et al.
Fecha de publicación:
42009 -
Magnetic Fields and the Outer Rotation Curve of M31Recent observations of the rotation curve of M31 show a rise of the outer part that cannot be understood in terms of standard dark matter models or perturbations of the galactic disk by M31's satellites. Here, we propose an explanation of this dynamical feature based on the influence of the magnetic field within the thin disk. We have consideredRuiz-Granados, B. et al.
Fecha de publicación:
112010 -
Lines in the cosmic microwave background spectrum from the epoch of cosmological helium recombinationThe main goal of this work is to calculate the contributions of bound-bound transitions of helium to the cosmological recombination spectrum. We show that helium in the early Universe causes unique features to appear in the total cosmological recombination spectrum. These may provide a unique observational possibility to determine the relativeRubiño-Martín, J. A. et al.
Fecha de publicación:
72008 -
Estimating the impact of recombination uncertainties on the cosmological parameter constraints from cosmic microwave background experimentsWe use our most recent training set for the RICO code to estimate the impact of recombination uncertainties on the posterior probability distributions which will be obtained from future cosmic microwave background experiments, and in particular the Planck satellite. Using a Monte Carlo Markov Chain (MCMC) analysis to sample the posteriorRubiño-Martín, J. A. et al.
Fecha de publicación:
32010
Charlas relacionadas
No se han encontrado charlas relacionadas.Congresos relacionados
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XIX Canary Islands Winter School of Astrophysics "The Cosmic Microwave | Background: from quantum fluctuations to the present Universe"Tenerife, Canary IslandsEspañaFecha-Anteriores
Noticias
Proyectos relacionados
Herschel y Planck
Participación del IAC en las misiones espaciales HERSCHEL Y PLANCK SURVEYOR. Desde el año 1996 el Instituto de Astrofísica de Canarias viene participando en la concepción y desarrollo de la carga útil científica de las misiones espaciales Herschel Space Observatory y Planck Surveyor de la Agencia Espacial Europea (ESA).
Jorge
Casares Velázquez
Ismael
Pérez Fournon
Rafael
Rebolo López
COSMOSOMAS
Mantenimiento del experimento COSMOSOMAS. Este instrumento estudia la radiación fósil que llega en forma de microondas, un tipo de luz que el ojo humano no puede captar pero que impregna todo el Universo. Actualmente se realizan tareas de puesta a punto para conseguir fiabilidad en la calidad de los datos y mejorar la seguridad de las instalaciones
Rafael
Rebolo López
