596 citations
- V. Larionov21 · h 60
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289 papers
A broadband outburst of the compact steep-spectrum quasar 3C 138 in 2024-2026
T. V. Mufakharov, Yu. V. Sotnikova, V. V. Vlasyuk +20
After several decades of relative quiescence, the compact steep-spectrum quasar 3C 138 entered an active phase in 2024-2026, exhibiting strong broadband flaring. We investigate its…
The giant pulse population of PSR B0355+54
Sergei L. Kurdubov, Dmitry A. Marshalov
Giant pulses are rare bright radio bursts that occur in restricted ranges of pulsar rotational phase. Here we report giant pulses from PSR B0355+54, a pulsar with spin period ~0.15…
Photometric light curves analysis of SU UMa-type dwarf novae: the case of RZ LMi and KV Dra
I. B. Voloshina, A. N. Tarasenkov
The results of new photometric observations of two SU~UMa type dwarf novae are presented. Superhumps were detected on the light curves of these systems during superoutbursts and th…
Sky background accounting in spectral infrared observations of extended objects at the Caucasus Mountain Observatory of the SAI MSU
A. S. Gusev, A. M. Tatarnikov, S. G. Zheltoukhov +1
The Caucasus Mountain Observatory of the Sternberg Astronomical Institute of Moscow State University is the only one in Russia and one of the few in the world where is possible to…
Melnikov-Arnold integrals and optimal normal forms
Ivan I. Shevchenko
The Melnikov-Arnold integrals (MA-integrals) is a well-known instrument used to measure the splitting of separatrices in Hamiltonian systems. In this article, we explore how calcul…
A practical re-weighting scheme of data fitting: application to asteroids orbit determination with Gaia
Dmitri. E. Vavilov, Ziyu. Liu, Daniel. Hestroffer +1
The method of weighted least squares is widely used in parameter estimation problems such as asteroid orbit determination. A key difficulty is the treatment of observational uncert…