Vol. 80, No. 1, 2025

Astrophysical Bulletin

The Nature of S0 Galaxies: an Unusual Case of the Isolated Lenticular Galaxy NGC 6798—a Gas Reservoir without Accretion

O. K. Sil’chenko, A. V. Moiseev, D. V. Oparin, A. A. Smirnova, E. A. Maleeva, and A. V. Silchenko p. 1 abstract

Structural and Kinematic Features of the Gaseous Envelope of the Unusual Herbig Ae Star HD 179218 II. Long-term Spectral and Photometric Variability

N. Z. Ismailov, M. A. Pogodin, A. F. Kholtygin, H. N. Adigozalzade, O. V. Kozlova, and A. A. Ivanova p. 14 abstract

Far-Infrared Emission from a Late Supernova Remnant in an Inhomogeneous Medium

S. A. Drozdov, S. Yu. Dedikov, and E. O. Vasiliev p. 22 abstract

Structure of the Stellar Neighborhood of CQ Tau in the Presence of a Companion in an Elongated Orbit

T. V. Demidova p. 38 abstract

Optical and X-Ray Variability of Be Stars: \(\omega\) Ori

A. F. Kholtygin, A. V. Dodin, and I. A. Yakunin p. 49 abstract

Study of Nine Symbiotic Star Candidates. Discovery of the Symbiotic Nature of V520 And

N. A. Maslennikova, A. M. Tatarnikov, A. A. Tatarnikova, A. V. Dodin, and N. I. Shatsky p. 58 abstract

Searching for Traces of Exoplanet Atmospheres Using Multicolor Photometric Observations of Transits

E. V. Bekesov, K. A. Lyzenko, A. M. Cherepashchuk, A. A. Belinsky, N. A. Maslennikova, and A. M. Tatarnikov p. 69 abstract

Kinetic Modeling of Non-Thermal Processes in the Upper Atmosphere of Sub-Neptune \(\pi\) Men c

A. A. Avtaeva, and V. I. Shematovich p. 83 abstract

On the Method of Searching for Rotations of the Electric Vector Position Angle Using Cross-Correlation Analysis

E. A. Shkodkina, S. S. Savchenko, and E. V. Shishkina p. 94 abstract

Monochromatic X-ray Observations of Solar Cusps

A. A. Reva, S. A. Bogachev, A. S. Kirichenko, and I. P. Loboda p. 104 abstract

MAD-Accretion Scenario in High-Mass X-Ray Binaries with Neutron Stars

N. R. Ikhsanov, M. Yu. Piotrovich, and N. G. Beskrovnaya p. 122 abstract

Cases of Further Integrability of the Equation of Motion in the Presence of the Local Integral in the Space Model. II

F. T. Shamshiev p. 132 abstract

Possibilities for Studying Star-Formation Processes at IRAO ‘‘Suffa’’: Objects and Tasks

A. S. Hojaev, and I. I. Zinchenko p. 140 abstract

Development of High-Resolution Spectroscopy on the Moving Part of the 6-m Telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences

V. E. Panchuk, V. G. Klochkova, M. V. Yushkin, and G. S. Zhuklevich p. 162 abstract

Erratum

Erratum to: Local Volume Dwarf Cas 1: Gas Metallicity, Extinction, and Distance

S. A. Pustilnik, A. L. Tepliakova, and A. S. Vinokurov p. 171 abstract

Erratum to: Optical and X-Ray Variability of \(\boldsymbol{\gamma}\) Cas Stars II: SAO 49725

A. F. Kholtygin, I. A. Yakunin, V. S. Bukharinov, D. N. Mokshin, E. B. Ryspaeva, and O. A. Tsiopa p. 172 abstract

Contents

Astrophysical Bulletin

Erratum