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Analyse of Uber gravity model by the ISW effect
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Hamed Shoja Shafiee   , Shahram Khosravi |
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Abstract: (505 Views) |
| The standard model of cosmology, despite its many strong strengths, is constantly under the influence of some serious questions and challenges, and as a result of trying to answer these challenges, new fields and approaches in cosmology were born or developed. Uber's gravitational model, as a new model, is a kind of result of these challenges, which has powerful logic and mathematics. This model, which in recent years has established itself as a seriously modified model, has been able to provide interesting answers to some important challenges. according to the latest estimates, the possible transition of the standard model to this model is approximately estimated at redness Z = 0.54, we decided to test this model through the ISW experimental effect window. With the help of first-order scalar perturbations and numerical solution of density equations, we obtained the ISW signal of the model, which was in the range of 1σ relative to the observations and showed a slight difference from the standard model. |
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| Keywords: Modified Gravity, Uber Gravity Model, ISW Effect, Standard Model |
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Type of Study: Research |
Subject:
Special
Received: 2021/06/11 | Accepted: 2023/02/21 | Published: 2023/03/6
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