1. Strong Shock in the Uniformly Expanding Universe with a Spherical Void

   • G. S. Bisnovatyi-Kogan
   • S. A. Panafidina

   OriginalPaper 30 December 2020 Pages: 963 - 978

   

2. Changing Looks of the Nucleus of Seyfert Galaxy NGC 3516 during 2016–2020

   • V. L. Oknyansky
   • Kh. M. Mikailov
   • N. A. Huseynov

   OriginalPaper 30 December 2020 Pages: 979 - 984

   

3. Nature of Purely Stellar Rings in Lenticular Galaxies

   • O. K. Sil’chenko

   OriginalPaper 30 December 2020 Pages: 985 - 993

   

4. On the Influence of Angular Momentum and Dynamical Friction on Structure Formation

   • Antonino Del Popolo

   OriginalPaper 30 December 2020 Pages: 994 - 1004

   

5. The Relic Neutrino Composition as Seen from Earth

   • A. N. Baushev

   OriginalPaper 30 December 2020 Pages: 1005 - 1011

   

6. The Change of Period and Obliquity Angle of Pulsar under Braking of Magnetic Dipolar Radiation and Magnetic Decay

   • Lin-Sen Li

   OriginalPaper 30 December 2020 Pages: 1012 - 1015

7. Migration of Hot Jupiters Induced by Atmosphere Outflow

   • E. P. Kurbatov
   • D. V. Bisikalo
   • I. F. Shaikhislamov

   OriginalPaper 30 December 2020 Pages: 1016 - 1025

   

8. Modeling of Hydrogen Emission Lines in the Spectrum of UX Ori in Its Bright State and during Eclipses

   • L. V. Tambovtseva
   • V. P. Grinin
   • D. V. Dmitriev

   OriginalPaper 30 December 2020 Pages: 1026 - 1041

   

9. Kinematic Properties of Young Intermediate- and Low-Mass Stars from the Gaia DR2 Catalogue

   • V. V. Bobylev
   • A. T. Bajkova

   OriginalPaper 30 December 2020 Pages: 1042 - 1049

   

10. Multi-Brid DBI Inflation

    • S. Khoeini-Moghaddam

    OriginalPaper 30 December 2020 Pages: 1050 - 1059

    

11. Solution of Kepler’s Equation with Machine Precision

    • M. K. Abubekerov
    • N. Yu. Gostev

    OriginalPaper 30 December 2020 Pages: 1060 - 1066

    

12. TianQin Space-Based Gravitational Wave Detector: Key Technologies and Current State of Implementation

    • V. K. Milyukov

    OriginalPaper 30 December 2020 Pages: 1067 - 1077

    

13. Lunar-Based Measurements of the Moon’s Physical Libration: Methods and Accuracy Estimates

    • N. K. Petrova
    • Yu. A. Nefedyev
    • A. A. Zagidullin

    OriginalPaper 30 December 2020 Pages: 1078 - 1086

    

14. The κ-Cygnid Meteor Shower and Its Relationship with Near-Earth Asteroids

    • M. V. Sergienko
    • M. G. Sokolova
    • A. O. Andreev

    OriginalPaper 30 December 2020 Pages: 1087 - 1092

15. Physical Libration of the Moon: An Extended Problem

    • A. A. Zagidullin
    • V. S. Usanin
    • T. V. Gudkova

    OriginalPaper 30 December 2020 Pages: 1093 - 1106