0000000000856794

AUTHOR

Nabila Aghanim

showing 2 related works from this author

Extraction of cluster parameters with future Sunyaev-Zel'dovich observations

2003

The Sunyaev-Zel'dovich (SZ) effect of galaxy clusters is characterized by three parameters: Compton parameter, electron temperature and cluster peculiar velocity. In the present study we consider the problem of extracting these parameters using multi-frequency SZ observations only. We show that there exists a parameter degeneracy which can be broken with an appropriate choice of frequencies. As a result we discuss the optimal choice of observing frequencies from a theoretical point of view. Finally, we analyze the systematic errors (of the order micro K) on the SZ measurement introduced by finite bandwidths, and suggest a possible method of reducing these errors.

PhysicsSystematic error010308 nuclear & particles physicsAstrophysics (astro-ph)FOS: Physical sciencesFísicaAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics01 natural sciencesComputational physics[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]0103 physical sciencesPeculiar velocityCluster (physics)Electron temperaturePoint (geometry)Degeneracy (mathematics)010303 astronomy & astrophysicsGalaxy cluster
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Euclid Preparation. XIV. The Complete Calibration of the Color–Redshift Relation (C3R2) Survey: Data Release 3

2021

Stanford, S. A., et al.

Cosmology and Nongalactic Astrophysics (astro-ph.CO)[PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM]Calibration (statistics)FOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsColor space217101 natural sciencesCosmologyLarge-scale structure010309 optics[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]galaxy spectroscopySettore FIS/05 - Astronomia e AstrofisicaSpitzer Space Telescope0103 physical sciencesDISTRIBUTIONSAstrophysics::Solar and Stellar AstrophysicsInstrumentation and Methods for Astrophysics (astro-ph.IM)PHOTOMETRIC REDSHIFTS010303 astronomy & astrophysicsWeak gravitational lensingAstrophysics::Galaxy AstrophysicsPhysicsHardware_MEMORYSTRUCTURESAstrophysics::Instrumentation and Methods for AstrophysicsEuclidAstronomy and AstrophysicsRedshiftGalaxyCosmologySpace and Planetary ScienceGalaxy spectroscopyDark energyAstrophysics - Instrumentation and Methods for AstrophysicsAstrophysics - Cosmology and Nongalactic Astrophysics
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