Annihilation of \(\mathbf{{}^{22}}\)Na Positrons in Novae N. N. ChugaiA. D. Kudryashov OriginalPaper 23 July 2021 Pages: 197 - 203
Opacity of Ejecta in Calculations of Supernova Light Curves M. Sh. PotashovS. I. BlinnikovE. I. Sorokina OriginalPaper 23 July 2021 Pages: 204 - 213
Phase-Resolved Spectroscopy of the Magnetar SGR J1745–2900 Based on Data from the NuSTAR Observatory E. A. KuznetsovaA. A. LutovinovA. N. Semena OriginalPaper 23 July 2021 Pages: 214 - 223
Analysis of Selected Runaway Stars in the Orion Nebula Based on Data from the Gaia EDR3 Catalogue V. V. BobylevA. T. Bajkova OriginalPaper 23 July 2021 Pages: 224 - 234
Spectrophotometric Monitoring of the Activity of the Symbiotic Star CH Cyg from 2008 to 2018 T. N. TarasovaA. Skopal OriginalPaper 23 July 2021 Pages: 235 - 251
Changes in the Period of SU Sct, a Population II Cepheid L. N. BerdnikovE. N. Pastukhova OriginalPaper 23 July 2021 Pages: 252 - 261
Three-Dimensional Version of Hill’s Problem with Variable Mass Ferdous Bouaziz-Kellil OriginalPaper 23 July 2021 Pages: 262 - 276