Probing the dark matter density evolution law with large scale structures
Abstract We propose a new method to explore a possible departure from the standard time evolution law for the dark matter density. We looked for a violation of this law by using a deformed evolution law, given by $$\rho _c(z) \propto (1+z)^{3+\epsilon }$$ ρ c ( z ) ∝ ( 1 + z ) 3 + ϵ , and then const...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-07-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-021-09421-0 |
| _version_ | 1818859608314216448 |
|---|---|
| author | Kamal Bora R. F. L. Holanda Shantanu Desai |
| author_facet | Kamal Bora R. F. L. Holanda Shantanu Desai |
| author_sort | Kamal Bora |
| collection | DOAJ |
| description | Abstract We propose a new method to explore a possible departure from the standard time evolution law for the dark matter density. We looked for a violation of this law by using a deformed evolution law, given by $$\rho _c(z) \propto (1+z)^{3+\epsilon }$$ ρ c ( z ) ∝ ( 1 + z ) 3 + ϵ , and then constrain $$\epsilon $$ ϵ . The dataset used for this purpose consists of Strong Gravitational Lensing data obtained from SLOAN Lens ACS, BOSS Emission-line Lens Survey, Strong Legacy Survey SL2S, and SLACS; along with galaxy cluster X-ray gas mass fraction measurements obtained using the Chandra Telescope. Our analyses show that $$\epsilon $$ ϵ is consistent with zero within 1 $$\sigma $$ σ c.l., but the current dataset cannot rule out with high confidence level interacting models of dark matter and dark energy. |
| first_indexed | 2024-12-19T09:14:53Z |
| format | Article |
| id | doaj.art-6f234757802840aa955a6bf71eab03f7 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-19T09:14:53Z |
| publishDate | 2021-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-6f234757802840aa955a6bf71eab03f72022-12-21T20:28:07ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522021-07-018171710.1140/epjc/s10052-021-09421-0Probing the dark matter density evolution law with large scale structuresKamal Bora0R. F. L. Holanda1Shantanu Desai2Department of Physics, Indian Institute of Technology, HyderabadDepartamento de Física, Universidade Federal do Rio Grande do NorteDepartment of Physics, Indian Institute of Technology, HyderabadAbstract We propose a new method to explore a possible departure from the standard time evolution law for the dark matter density. We looked for a violation of this law by using a deformed evolution law, given by $$\rho _c(z) \propto (1+z)^{3+\epsilon }$$ ρ c ( z ) ∝ ( 1 + z ) 3 + ϵ , and then constrain $$\epsilon $$ ϵ . The dataset used for this purpose consists of Strong Gravitational Lensing data obtained from SLOAN Lens ACS, BOSS Emission-line Lens Survey, Strong Legacy Survey SL2S, and SLACS; along with galaxy cluster X-ray gas mass fraction measurements obtained using the Chandra Telescope. Our analyses show that $$\epsilon $$ ϵ is consistent with zero within 1 $$\sigma $$ σ c.l., but the current dataset cannot rule out with high confidence level interacting models of dark matter and dark energy.https://doi.org/10.1140/epjc/s10052-021-09421-0 |
| spellingShingle | Kamal Bora R. F. L. Holanda Shantanu Desai Probing the dark matter density evolution law with large scale structures European Physical Journal C: Particles and Fields |
| title | Probing the dark matter density evolution law with large scale structures |
| title_full | Probing the dark matter density evolution law with large scale structures |
| title_fullStr | Probing the dark matter density evolution law with large scale structures |
| title_full_unstemmed | Probing the dark matter density evolution law with large scale structures |
| title_short | Probing the dark matter density evolution law with large scale structures |
| title_sort | probing the dark matter density evolution law with large scale structures |
| url | https://doi.org/10.1140/epjc/s10052-021-09421-0 |
| work_keys_str_mv | AT kamalbora probingthedarkmatterdensityevolutionlawwithlargescalestructures AT rflholanda probingthedarkmatterdensityevolutionlawwithlargescalestructures AT shantanudesai probingthedarkmatterdensityevolutionlawwithlargescalestructures |