Vol. 50, No. 3, 2024

Astronomy Letters

Increase in the Brightness of the Cosmic Radio Background toward Galaxy Clusters

S. A. Grebenev, and R. A. Sunyaev p. 159 abstract

Annihilation of Positrons from AGN Jets As a Possible Source of Cosmic Gamma-Ray Background at Energies below 511 keV

B. A. Nizamov, and M. S. Pshirkov p. 186 abstract

Clumpy Accretion As a Possible Cause of Prolonged Eclipses in UX Ori Stars

V. P. Grinin, and T. V. Demidova p. 194 abstract

Observation of a Helioseismically Active Solar Flare with a Low Hard X-ray Flux up to 50 keV

I. N. Sharykin, I. V. Zimovets, A. G. Kosovichev, and I. I. Myshyakov p. 203 abstract

Erratum

Erratum to: The Method of Periodic Principal Components for the Dynamic Spectrum of Radio Pulsars and Faraday Rotation of Nine Pulse Components of PSR B0329+54

V. V. Kocharovsky, V. V. Vdovin, A. S. Gavrilov, E. R. Kocharovskaya, S. V. Logvinenko, E. M. Loskutov, and V. M. Malofeev p. 220 abstract

Contents

Astronomy Letters

Erratum