Search results for "Redshift survey"

showing 3 items of 13 documents

RELIABILITY OF THE DETECTION OF THE BARYON ACOUSTIC PEAK

2008

The correlation function of the distribution of matter in the universe shows, at large scales, baryon acoustic oscillations, which were imprinted prior to recombination. This feature was first detected in the correlation function of the luminous red galaxies (LRG) of the Sloan Digital Sky Survey (SDSS). The final release (DR7) of the SDSS has been recently made available, and the useful volume is about two times bigger than in the old sample. We present here, for the first time, the redshift space correlation function of this sample at large scales together with that for one shallower, but denser volume-limited subsample drawn from the 2dF redshift survey. We test the reliability of the det…

Physicsmedia_common.quotation_subjectAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsCorrelation function (astronomy)AstrophysicsRedshift surveyGalaxyRedshiftBaryonDistribution (mathematics)Space and Planetary ScienceSkyBaryon acoustic oscillationsAstrophysics::Galaxy Astrophysicsmedia_commonThe Astrophysical Journal
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A Three-Dimensional Object Point Process for Detection of Cosmic Filaments

2007

Summary We propose to apply an object point process to delineate filaments of the large scale structure in red shift catalogues automatically. We illustrate the feasibility of the idea on an example of the recent 2dF Galaxy Redshift Survey, describe the procedure and characterize the results.

Statistics and Probability2dF Galaxy Redshift SurveyCOSMIC cancer databaseComputer scienceProcess (computing)Survey samplingAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsCosmologyPoint processObject pointRed shiftCalculusStatistics Probability and UncertaintyAstrophysics::Galaxy AstrophysicsJournal of the Royal Statistical Society Series C: Applied Statistics
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Euclid preparation. XII. Optimizing the photometric sample of the Euclid survey for galaxy clustering and galaxy-galaxy lensing analyses

2021

Pocino, A., et al. (Euclid Collaboration)

luminous red galaxiesCosmological parameterAstrophysicsSurveys01 natural sciencesCosmologytechniques: photometricgalaxiesGalaxies: distances and redshiftdistances and redshiftsSurvey010303 astronomy & astrophysicsWeak gravitational lensingPhysicsRedshift surveylsstastro-ph.COgalaxies: distances and redshiftsconstraintsAstrophysics - Cosmology and Nongalactic Astrophysicsredshift surveyCosmology and Nongalactic Astrophysics (astro-ph.CO)Cosmological parametersFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsphotometricSettore FIS/05 - Astronomia e Astrofisicasurveys0103 physical sciencesdistances and redshifts [Galaxies]cosmological parametersSpurious relationshipCluster analysisdark energy surveyAstrophysics::Galaxy Astrophysics010308 nuclear & particles physicsphotometric [Techniques]Astronomy and Astrophysicsspace115 Astronomy Space scienceRedshiftGalaxySpace and Planetary ScienceCosmological parameters; Galaxies: distances and redshifts; Surveys; Techniques: photometrictechniquesFocus (optics)[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]cosmologycosmic shearintrinsic alignments
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