Asymmetry of magnetization curves of textured BSCCO (2009)
Gokhfeld, D. M., Balaev, D. A., Popkov, S. I., Shaykhutdinov, K. A., Petrov, M. I.
The dependence of magnetization on magnetic field M(H) was measured for textured BSCCO samples for H || c, H || ab at different temperatures. Inclusion of the pinning parameter in the...
Quantitative analysis of clumps in the tidal tails of star clusters (2009)
Just, A., Berczik, P., Petrov, M. I., Ernst, A.
Tidal tails of star clusters are not homogeneous but show well-defined clumps in observations as well as in numerical simulations. Recently, an epicyclic theory for the formation of these clumps was...
Shape parameters of Galactic open clusters (2008)
Kharchenko, N. V., Berczik, P., Petrov, M. I., Piskunov, A. E., Röser, S., Schilbach, E., ...
(abridged) In this paper we derive observed and modelled shape parameters (apparent ellipticity and orientation of the ellipse) of 650 Galactic open clusters identified in the ASCC-2.5 catalogue. We...
Quantitative analysis of clumps in the tidal tails of star clusters (2008)
Just, A., Berczik, P., Petrov, M. I., Ernst, A.
Tidal tails of star clusters are not homogeneous but show well defined clumps in observations as well as in numerical simulations. Recently an epicyclic theory for the formation of these clumps was...
Petrov, M. I., Gokhfeld, Yu. S., Balaev, D. A., Popkov, S. I., Dubrovskiy, A. A., Gokhfeld, D. M., ...
The intragrain pinning in high-$T_c$ superconductor compounds Y$_{1-x}$RE$_{x}$Ba$_{2}$Cu$_{3}$O$_{7-\delta}$ with low concentration of RE (La, Ce, Pr) was investigated. Magnetic and transport...
Current - voltage characteristics of break junctions of high-$T_c$ superconductors (2007)
Gokhfeld, D M, Balaev, D A, Shaykhutdinov, K A, Popkov, S I, Petrov, M I
The current-voltage ($I$-$V$) characteristics of break junctions of polycrystalline La$_{1.85}$Sr$_{0.15}$CuO$_4$, Y$_{0.75}$Lu$_{0.25}$Ba$_2$Cu$_3$O$_{7-\delta}$,...
Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events (2005)
Zhilyaev, B. E., Romanyuk, Ya. O., Verlyuk, I. A., Svyatogorov, O. A., Petrov, M. I., Lovkaya, M. N.
We have monitored two bright galaxies, M85 and NGC7331, on timescales as short as 0.01s. In the optical, we discovered an unusual burst coincident with the galaxy M85. We registered a sudden onset...
Magnetization loop and critical current of porous Bi-based HTSC (2005)
Gokhfeld, D. M., Balaev, D. A., Popkov, S. I, Shaykhutdinov, K. A., Petrov, M. I.
The magnetization of porous $Bi_{1.8}Pb_{0.3}Sr_2Ca_2Cu_3O_x$ have been investigated. The experimental magnetization hysteretic loops of $M(H)$ were described in the frames of Val'kov -- Khrustalev...
Simulation of the Gravitational Collapse and Fragmentation of Rotating Molecular Clouds (2005)
In this paper we study the process of the subsequent (runaway) fragmentation of the rotating isothermal Giant Molecular Cloud (GMC) complex. Our own developed Smoothed Particle Hydrodynamics (SPH)...
Andreev reflection in Bi_{1.8}Pb_{0.3}Sr_{1.9}Ca_2Cu_3O_x break junction (2004)
Gokhfeld, D. M., Balaev, D. A., Shaykhutdinov, K. A., Popkov, S. I., Petrov, M. I.
The current-voltage characteristic (CVC) of break junction made from polycrystalline Bi_{1.8}Pb_{0.3}Sr_{1.9}Ca_2Cu_3O_x is investigated. The experimental CVC has hysteretic feature that reflects a...