Vol. 64, No. 8, 2020

Astronomy Reports

Deuterium Fractionation in the Oph-H-MM1 Dense Core of the L1688 Low Mass Star-Forming Region

I. V. Petrashkevich, A. F. Punanova, P. Caselli, J. Pineda, A. Pon, and R. Friesen p. 637 abstract

Probing Modified Gravity with the Structures Maximum Dimensions

A. Del Popolo p. 641 abstract

Radio Emission of the Combined Supernova Remnant 3C396 (G39.2-0.3)

V. P. Ivanov, A. V. Ipatov, I. A. Rakhimov, and T. S. Andreeva p. 651 abstract

Variability of the Blazar B1308+326 in 2011–2018

V. A. Hagen-Thorn, D. A. Morozova, E. I. Hagen-Thorn, S. S. Savchenko, I. S. Troitsky, L. V. Shaliapina, and E. V. Volkov p. 663 abstract

Quasi-Resonant States of Hydrogen Gas

V. P. Grinin, N. A. Katysheva, T. A. Ermolaeva, and D. V. Dmitriev p. 672 abstract

Diffusion Ionised Gas in the Directions of the Supernova Remnant Kes 79 and Pulsar B1849+00

A. V. Pynzar p. 681 abstract

Impact of the Small-Scale Spatial Distribution of Dust Particles on the Chemical Evolution of the Diffuse Interstellar Medium

V. A. Sokolova, A. I. Vasyunin, A. B. Ostrovskii, and S. Yu. Parfenov p. 693 abstract

Solar System Encounters with Open Star Clusters

M. D. Sizova, S. V. Vereshchagin, B. M. Shustov, and N. V. Chupina p. 711 abstract

Solar Gamma-Ray Flares and Activity Complexes

V. M. Tomozov, S. A. Yazev, and E. S. Isaeva p. 722 abstract