Contents

Astronomy Letters

---

Vol. 51, No. 4, 2025

---

Absorption in the 21 cm Hydrogen Line at \(\boldsymbol{z>10}\) as a Sensitive Tool for the Construction of a Cosmological Model on Small Scales

Yu. N. Eroshenko, V. N. Lukash, E. V. Mikheeva, S. V. Pilipenko, and M. V. Tkachev p. 189  abstract

On the Fermi Acceleration Process at Curvilinear Shock Fronts

J. A. Kropotina and A. M. Bykov p. 198  abstract

Polarization and a Model for the Dust Shell of the Carbon-rich post-AGB Object IRAS 22272\(+\)5435 (V354 Lac)

N. P. Ikonnikova and B. S. Safonov p. 210  abstract

On the Quasi-periodic Decameter Radio Emission from Jupiter Associated with Ganymede

V. E. Shaposhnikov and V. V. Zaitsev p. 225  abstract

Geodetic Nutation of Celestial Bodies in the Jovian Satellite System

V. V. Pashkevich and A. N. Vershkov p. 236  abstract

Total Solar Irradiance Variations from Data on the \({}^{\mathbf{10}}\)Be Concentration in Antarctic Ice

M. G. Ogurtsov p. 247  abstract

---