Redshift-space distortions in massive neutrino and evolving dark energy cosmologies
نویسندگان
چکیده
Amol Upadhye, Juliana Kwan, Adrian Pope, Katrin Heitmann, 4, 5 Salman Habib, 4, 5 Hal Finkel, and Nicholas Frontiere 7 Department of Physics, University of Wisconsin–Madison, 1150 University Avenue, Madison, WI 53706 Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104 High Energy Physics Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439 Kavli Institute for Cosmological Physics, The University of Chicago, Chicago, IL 60637 Mathematics and Computer Science Division, Argonne National Laboratory, 9700 S. Cass Ave., Lemont IL 60439 ALCF, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, IL 60439 Department of Physics, The University of Chicago, Chicago, IL 60637 (Dated: March 2, 2016)
منابع مشابه
Clustering in growing neutrino cosmologies
We show that growing neutrino models, in which the growing neutrino mass stops the dynamical evolution of a dark energy scalar field, lead to a substantial neutrino clustering on the scales of superclusters. Nonlinear neutrino lumps form at redshift z ≈ 1 and could partially drag the clustering of dark matter. If observed, large scale non-linear structures could be an indication for a new attra...
متن کاملCosmological parameter determination from Planck and SDSS data in Λ CHDM cosmologies
We study the complementarity between the cosmological information obtainable with the Planck surveyour and the large scale structure (LSS) redshift surveys in ΛCHDM cosmologies. We compute the initial full phase-space neutrino distribution function for ΛCHDM models by using numerical simulations. As initial condition we adopt the HDM density fluctuation power spectrum normalized on the basis of...
متن کاملGrowing Neutrino Cosmology
In growing neutrino models, the neutrino mass increases in time and stops the dynamical evolution of a dark energy scalar field, thus explaining the ‘why now’ problem. A new attractive force, mediated by the ‘cosmon’ scalar field, makes non relativistic neutrino form lumps on the scales of superclusters and beyond. Nonlinear neutrino lumps are predicted to form at redshift z ≈ 1 and, if observe...
متن کاملTesting the dark energy consistency with geometry and growth
We perform parametric tests of the consistency of the standard wCDM model in the framework of general relativity by carefully separating information between the geometry and growth of structure. We replace each late-Universe parameter that describes the behavior of dark energy with two parameters: one describing geometrical information in cosmological probes, and the other controlling the growt...
متن کاملDynamical Dark Energy model parameters with or without massive neutrinos
We use WMAP5 and other cosmological data to constrain model parameters in quintessence cosmologies, focusing also on their shift when we allow for non–vanishing neutrino masses. The Ratra–Peebles (RP) and SUGRA potentials are used here, as examples of slowly or fastly varying state parameter w(a). Both potentials depend on an energy scale Λ. Here we confirm the results of previous analysis with...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2016