Contents

Astronomy Letters

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Vol. 47, No. 12, 2021

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Gamma-Ray Bursts: Multiwavelength Investigations and Models

A. S. Pozanenko, M. V. Barkov, P. Yu. Minaev, and A. A. Volnova p. 791  abstract

Populations of Ultraluminous X-ray Sources in Galaxies: Origin and Evolution

A. G. Kuranov, K. A. Postnov, and L. R. Yungelson p. 831  abstract

GX 339-4: Is the Hot-Flow Precession Model Consistent with the Infrared Variability in Low-Mass X-ray Binaries?

A. N. Semena, I. A. Mereminskiy, V. A. Arefiev, and A. A. Lutovinov p. 856  abstract

Kinematic Properties of the GAIA EDR3 Catalogue

A. S. Tsvetkov p. 863  abstract

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