Model independent dark matter properties from cosmic growth
Zhumabek T. Denissenya M. Linder E.V.
1 February 2024Institute of Physics
Journal of Cosmology and Astroparticle Physics
2024#2024Issue 2
Dark matter dominates the matter budget of the universe but its nature is unknown. Deviations from the standard model, where dark matter clusters with the same gravitational strength as baryons, and has the same pressureless equation of state as baryons, can be tested by cosmic growth measurements. We take a model independent approach, allowing deviations in bins of redshift, and compute the constraints enabled by ongoing cosmic structure surveys through redshift space distortions and peculiar velocities. These can produce constraints at the 3-14% level in four independent redshift bins over z = [0,4].
dark matter theory , redshift surveys
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Energetic Cosmos Laboratory, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, 010000, Kazakhstan
Department of Physics, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, Astana, 010000, Kazakhstan
Berkeley Center for Cosmological Physics & Berkeley Lab, University of California, 1 Cyclotron Road, Berkeley, 94720, CA, United States
Energetic Cosmos Laboratory
Department of Physics
Berkeley Center for Cosmological Physics & Berkeley Lab
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