38 citations · 90 across the 9 of their papers we have counts for
9 papers
Cosmological Observational Tests in the JWST Era. II: The Tolman Test
V. V. Tsymbal, A. A. Raikov, N. Yu. Lovyagin
In this work, we investigate a classical cosmological test - the dependence of galaxy surface brightness on redshift z (the Tolman test). We analyzed 6 860 galaxies with reliably d…
Cosmological observational tests in the JWST Era. I: angular size - redshift
A. A. Raikov, V. V. Tsymbal, N. Yu. Lovyagin
This study is devoted to the cosmological "angular size - redshift" test. An analysis is performed of the angular and linear sizes of galaxies from the new ASTRODEEP-JWST catalogue…
The Hubble Diagram: Jump from Supernovae to Gamma-Ray Bursts
Nikita Lovyagin, Rustam Gainutdinov, Stanislav Shirokov +1
The Hubble diagram (HD) is a plot that contains luminous distance modulus presented with respect to the redshift. The distance modulus--redshift relation of the most well-known ``s…
Solving the inverse cosmological calibration problem of gamma-ray bursts
S. I. Shirokov, R. I. Gainutdinov, N. Yu. Lovyagin +1
We have received a new physical characteristics fitting based on actual observational data from the Swift mission's long-duration gamma-ray bursts (LGRBs). We considered such chara…
Cosmological Model Tests with JWST
Nikita Lovyagin, Alexander. Raikov, Vladimir Yershov +1
The James Webb Space Telescope (JWST), which has recently become operational, is capable of detecting objects at record-breaking redshifts, . This is a crucial advanc…
Superluminous quasars and mesolensing
Alexander Raikov, Nikita Lovyagin, Vladimir Yershov
Observed magnitudes of many quasars with redshifts exceeding correspond to luminosities . The standard mechanism of quasar energy release by a…
High Redshift Long Gamma-Ray Bursts Hubble Diagram as a Test of Basic Cosmological Relations
S. I. Shirokov, I. V. Sokolov, N. Yu. Lovyagin +4
We examine the prospects of the high redshift Long Gamma Ray Bursts (LGRB) Hubble Diagram as a test of the basic cosmological principles. Analysis of the Hubble Diagram allows us t…
Distant foreground and the Planck-derived Hubble constant
V. N. Yershov, A. A. Raikov, N. Yu. Lovyagin +2
It is possible to reduce the discrepancy between the local measurement of the cosmological parameter and the value derived from the measurements of the Cosmic Microw…
Large-Scale Fluctuations in the Number Density of Galaxies in Independent Surveys of Deep Fields
S. I. Shirokov, N. Yu. Lovyagin, Yu. V. Baryshev +1
New arguments supporting the reality of large-scale fluctuations in the density of the visible matter in deep galaxy surveys are presented. A statistical analysis of the radial dis…