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145 papers
Optical Identification and Spectroscopic Redshift Measurements of 216 Galaxy Clusters from the SRG/eROSITA All-Sky Survey
I. A. Zaznobin, R. A. Burenin, A. A. Belinski +34
We present the results of the optical identification and spectroscopic redshift measurements of 216 galaxy clusters detected in the SRG/eROSITA all-sky X-ray survey. The spectrosco…
X-Ray Variability of SDSS Quasars Based on the SRG/eROSITA All-Sky Survey
S. A. Prokhorenko, S. Yu. Sazonov, M. R. Gilfanov +6
We examine the long-term (rest-frame time scales from a few months to years) X-ray variability of a sample of 2344 X-ray bright quasars from the SDSS DR14Q Catalogue, bas…
Reheating process in the inflationary model with the baryogenesis scenario
Hyun Jeong, Kohei Kamada, Alexei A. Starobinsky +1
Post-inflationary evolution and (re)heating of the viable inflationary model, the one, is made more realistic by including the leptogenesis scenario into it. For this purpose…
X-ray surface brightness and gas density profiles of galaxy clusters up to 3*R500c with SRG/eROSITA
N. Lyskova, E. Churazov, I. I. Khabibullin +3
Using the data of the SRG/eROSITA all-sky survey, we stacked a sample of ~40 galaxy cluster images in the 0.3--2.3 keV band, covering the radial range up to …
Joint reconstructions of growth and expansion histories from stage-IV surveys with minimal assumptions. II. Modified gravity and massive neutrinos
Rodrigo Calderón, Benjamin L'Huillier, David Polarski +2
Based on a formalism introduced in our previous work, we reconstruct the phenomenological function describing deviations from General Relativity (GR) in a model-in…
Post-inflationary GW production in generic higher (infinite) derivative gravity
Alexey S. Koshelev, Alexei A. Starobinsky, Anna Tokareva
Gravity can be embedded into a renormalizable theory by means of adding quadratic in curvature terms. However, this at first leads to the presence of the Weyl ghost. It is possible…