Search results for "Clusters of galaxies"

showing 3 items of 3 documents

Cosmological parameters degeneracies and non-Gaussian halo bias

2010

We study the impact of the cosmological parameters uncertainties on the measurements of primordial non-Gaussianity through the large-scale non-Gaussian halo bias effect. While this is not expected to be an issue for the standard Lambda CDM model, it may not be the case for more general models that modify the large-scale shape of the power spectrum. We consider the so-called local non-Gaussianity model, parametrized by the f(NL) non-Gaussianity parameter which is zero for a Gaussian case, and make forecasts on f(NL) from planned surveys, alone and combined with a Planck CMB prior. In particular, we consider EUCLID- and LSST-like surveys and forecast the correlations among f(NL) and the runni…

AstrofísicaCúmuls de galàxiesParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Cosmic microwave backgroundFOS: Physical sciencesGalaxy clustersAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics01 natural sciencesPower spectrumsymbols.namesake0103 physical sciencesPlanck010303 astronomy & astrophysicsRedshift surveysPhysicsSpectral indexCosmological parameters from LSSCosmologiaClusters of galaxies010308 nuclear & particles physicsEquation of state (cosmology)Order (ring theory)Spectral densityAstronomy and AstrophysicsCosmologyHubble volumeDark energysymbolsAstrophysics - Cosmology and Nongalactic AstrophysicsJournal of Cosmology and Astroparticle Physics
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ORIGIN: metal creation and evolution from the cosmic dawn

2012

Herder, Jan-Willem den et al.

HOT INTERGALACTIC MEDIUMUNIVERSEChemical evolutionMission7. Clean energy01 natural sciencesSpectral lineSettore FIS/05 - Astronomia E Astrofisica010303 astronomy & astrophysicsmedia_commonPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)NUCLEOSYNTHESISCOSMIC cancer databaseClusters of galaxiesSatellite MissionEpoch (reference date)Astrophysics::Instrumentation and Methods for AstrophysicsFORESTGALAXIESGamma-ray burstsAstrophysics - Instrumentation and Methods for AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaX-ray Mission Gamma-ray bursts Clusters of galaxies Warm-hot intergalactic medium Chemical evolutionWarm-hot intergalactic mediumAstrophysics - Cosmology and Nongalactic AstrophysicsAstrophysics and AstronomyStructure formationCosmology and Nongalactic Astrophysics (astro-ph.CO)Clusters of galaxiemedia_common.quotation_subjectAstrophysics::High Energy Astrophysical PhenomenaREDSHIFTFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsX-ray Mission Gamma-ray bursts Clusters of galaxies Warm-hot intergalactic medium Chemical evolutionABSORPTION-SPECTRA010309 opticsX-rayYIELDS0103 physical sciencesGamma-ray burstInstrumentation and Methods for Astrophysics (astro-ph.IM)X-ray; Mission; Gamma-ray bursts; Clusters of galaxies; Warm-hot intergalactic medium; Chemical evolutionAstronomyAstronomy and AstrophysicsRedshiftGalaxyUniverse13. Climate actionChemical evolution; Clusters of galaxies; Gamma-ray bursts; Mission; Warm-hot intergalactic medium; X-ray; Astronomy and Astrophysics; Space and Planetary ScienceSpace and Planetary ScienceGamma-ray burstCLUSTERSExperimental Astronomy
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ESTREMO/WFXRT: Extreme phySics in the TRansient and Evolving COsmos

2006

We present a mission designed to address two main themes of the ESA Cosmic Vision Programme: the Evolution of the Universe and its Violent phenomena. ESTREMO/WFXRT is based on innovative instrumental and observational approaches, out of the mainstream of observatories of progressively increasing area, i.e.: Observing with fast reaction transient sources, like GRB, at their brightest levels, thus allowing high resolution spectroscopy. Observing and surveying through a X-ray telescope with a wide field of view and with high sensitivity extended sources, like cluster and Warm Hot Intragalactic Medium (WHIM). ESTREMO/WFXRT will rely on two cosmological probes: GRB and large scale X-ray structur…

PhysicsCosmic VisionAstrophysics::High Energy Astrophysical Phenomenamedia_common.quotation_subjectDark matterAstrophysics::Instrumentation and Methods for AstrophysicsAstronomyX-ray telescopeAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsCosmologyUniverselaw.inventionTelescopeSettore FIS/05 - Astronomia e AstrofisicalawX-ray instruments Cosmology Gamma-Ray Bursts Clusters of galaxiesDark energyGamma-ray burstmedia_common
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