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arXiv · 2006.06488

THESEUS$-$BTA cosmological tests using Multimessenger Gamma-Ray Bursts observations

S. I. Shirokov·I. V. Sokolov·V. V. Vlasyuk·L. Amati·V. V. Sokolov·Yu. V. Baryshev
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Abstract

Modern Multimessenger Astronomy is a powerful instrument for performing cosmological crucial tests of the Standard Cosmological Model in the wide redshift interval up to $z \sim 10$. This is principally important for discussion related to discrepancies between local and global measurements of cosmological parameters. We present a review of multimessenger gamma-ray burst observations currently conducted and planed for THESEUS$-$BTA cooperative program. Such observations give a unique opportunity to test the fundamental foundations of cosmological models: gravitation theory; cosmological principle of homogeneity and isotropy of large-scale distribution of matter; and space expansion paradigm. Important role of various selection effects leading to systematic distortions of true cosmological relations is discussed.

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S. I. Shirokov, I. V. Sokolov, V. V. Vlasyuk, L. Amati, V. V. Sokolov, Yu. V. Baryshev. 2020-06-11. THESEUS$-$BTA cosmological tests using Multimessenger Gamma-Ray Bursts observations. https://doi.org/10.1134/s1990341320030128

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