Quasar clustering redshift distortion constraints on dark energy

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dc.creatorCalvao, M. O.
dc.creatorNeto, J. R. T. de Mello
dc.creatorWaga, I.
dc.date2001-12-14
dc.date.accessioned2026-07-07T02:01:56Z
dc.date.available2026-07-07T02:01:56Z
dc.descriptionRedshift distortions, both geometrical and kinematical, of quasar clustering are simulated, for the Two-Degree Field QSO Redshift Survey (2QZ), showing that they are very effective to constrain the cosmological density and equation of state parameters, Omega_{m0}, Omega_{x0} and w. Particularly, it emerges that, for the cosmological constant case, the test is especially sensitive to the difference Omega_{m0} - Omega_{Lambda 0}, whereas, for the spatially flat case, it is quite competitive with future supernova and galaxy count tests, besides being complimentary to them.
dc.description2 pages, 1 figure. To appear in "A New Era in Cosmology" (ASP Conference Proceedings), eds. T. Shanks and N. Metcalfe
dc.identifierhttps://arxiv.org/abs/astro-ph/0112361
dc.identifierhttp://arxiv.org/abs/astro-ph/0112361
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/3925
dc.subjectAstrophysics
dc.titleQuasar clustering redshift distortion constraints on dark energy
dc.typetext

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