Vol. 51, No. 11-12, 2025

Astronomy Letters

Analysis of the Space Velocities of Several Samples of Open Star Clusters

V. V. Bobylev and A. T. Bajkova p. 645 abstract

X-ray and Gamma-ray Emission from a High-Temperature Plasma and the Spectra of Accreting Black Holes

S. A. Grebenev p. 655 abstract

The Eruptive Young Star IRAS 21204+4913

M. A. Burlak, A. V. Dodin, A. V. Zharova, S. G. Zheltoukhov, N. P. Ikonnikova, S. A. Lamzin, B. S. Safonov, I. A. Strakhov, A. A. Tatarnikov, and A. M. Tatarnikov p. 692 abstract

Analytical Approaches to Studying the Phase of the Visibility Function

S. V. Chernov p. 708 abstract

Characteristics and Geoeffectiveness of CME–Flare Events (\({\boldsymbol{\geq}}\)M5.0) from December 2019 to July 2023

A. Kubera Raja and A. Mujiber Rahman p. 718 abstract

Orbital Motion Control near the Designed Orbitin the Vicinity of a Collinear Libration Point

D. V. Shymanchuk, A. S. Shmyrov, and V. A. Shmyrov p. 734 abstract

Contents

Astronomy Letters