Gamma-ray burst investigation via polarimetry and spectroscopy (GRIPS) (2009)
Greiner, J., Iyudin, A., Kanbach, G., Zoglauer, A., Diehl, R., Ryde, F., ...
Bipolar ejection by the symbiotic binary system Z And during its 2006 outburst (2006)
Tomov, N. A., Tomova, M. T., Bisikalo, D. V.
High resolution data in the region of the line Halpha have been obtained at the time of the light maximum and after it of the 2006 optical outburst of the symbiotic binary Z And. A blue-shifted...
A Study of an Outburst in the Classical Symbiotic Star Z And in a Colliding-Wind Model (2006)
Bisikalo, D. V., Boyarchuk, A. A., Kilpio, E. Yu., Tomov, N. A., Tomova, M. T.
Two-dimensional gas-dynamical modeling of the mass-flow structure is used to study the outburst development in the classical symbiotic star Z And. The stage-by-stage rise of the light during the...
Superhumps in Binary Systems and Their Connection to Precessional Spiral Density Waves (2006)
Kaygorodov, P. V., Bisikalo, D. V., Kuznetsov, O. A., Boyarchuk, A. A.
We consider a mechanism for the formation of superhumps in the TV Col system, based on the possible existence of a precessional spiral wave in the accretion disk of the system. This mechanism can act...
Mitsumoto, M., Jahanara, B., Matsuda, T., Oka, K., Bisikalo, D. V., Kilpio, E. Yu., ...
The results of 3D modelling of the flow structure in the classical symbiotic system Z~Andromedae are presented. Outbursts in systems of this type occur when the accretion rate exceeds the upper limit...
Bisikalo, D. V., Boyarchuk, A. A., Kaygorodov, P. V., Kuznetsov, O. A.
A thickening at the outer edge of the accretion disk is usually invoked to explain the dips in the light curves of cataclysmic variables with stationary disks at phases ~0.7. The non-collisional...
A Monte Carlo model of auroral hydrogen emission line profiles (2005)
Shematovich, V. I., Bisikalo, D. V., Lummerzheim, D.
Hydrogen line profiles measured from space-borne or ground-based instruments provide useful information to study the physical processes occurring in the proton aurora and to estimate the proton flux...
A Monte Carlo model of auroral hydrogen emission line profiles (2005)
Shematovich, V. I., Bisikalo, D. V., Lummerzheim, D.
Hydrogen line profiles measured from space-borne or ground-based instruments provide useful information to study the physical processes occurring in the proton aurora and to estimate the proton flux...
The structure of cool accretion disc in semidetached binaries (2004)
Bisikalo, D. V., Boyarchuk, A. A., Kaygorodov, P. V., Kuznetsov, O. A., Matsuda, T.
We present the results of qualitative consideration of possible changes occurring during the transition from the hot accretion disc to the cool one. We argue the possible existence of one more type...
A model of superoutbursts in binaries of SU UMa type (2004)
Bisikalo, D. V., Boyarchuk, A. A., Kaygorodov, P. V., Kuznetsov, O. A., Matsuda, T.
A new mechanism explaining superoutbursts in binaries of SU UMa type is proposed. In the framework of this mechanism the accretion rate increase leading to the superoutburst is associated with...
Remote sensing of the proton aurora characteristics from IMAGE-FUV (2003)
Bisikalo, D. V., Shematovich, V. I., Meurant, M., Mende, S. B., Frey, H. U.
The combination of simultaneous global images of the north polar region obtained with the IMAGE-FUV imaging system makes it possible to globally map the properties of the electron and proton auroral...
Remote sensing of the proton aurora characteristics from IMAGE-FUV (2003)
Bisikalo, D. V., Shematovich, V. I., Meurant, M., Mende, S. B., Frey, H. U.
The combination of simultaneous global images of the north polar region obtained with the IMAGE-FUV imaging system makes it possible to globally map the properties of the electron and proton auroral...
Gas Flow Structure in Binary Systems with Mass Exchange Driven by Stellar Wind (2002)
Boyarchuk, A. A., Bisikalo, D. V., Kilpio, E. Yu., Kuznetsov, O. A.
Results of calculations of the flow structure in binary systems with mass exchange driven by stellar wind are presented. 2D simulations have been carried out using the Roe-Oscher scheme. The fine...
The role of proton precipitation in the excitation of auroral FUV emissions (2001)
Hubert, Benoît, Gérard, Jean-Claude, Bisikalo, D V, Shematovich, V I, Solomon, S C
Far ultraviolet remote sensing from a high-altitude satellite is extensively used to image the global aurora, derive its energetics, and follow its dynamical morphology. It is generally assumed that...
Synthetic Doppler maps of gaseous flows in IP Peg (2001)
Kuznetsov, O. A., Bisikalo, D. V., Boyarchuk, A. A., Khruzina, T. S., Cherepashchuk, A. M.
We present synthetic Doppler maps of gaseous flows in binary IP Peg based on the results of 3D gasdynamical simulations. Using of gasdynamical calculations alongside with the Doppler tomography...
On possible observational evidences of spiral shocks in accretion disks of CVs (2001)
Bisikalo, D. V., Boyarchuk, A. A., Kilpio, A. A., Kuznetsov, O. A.
The results of three-dimensional numerical simulations of mass transfer in binaries with spiral shocks are presented. It is shown that the mass transfer rate variation disturbs the equilibrium state...
Structure of gaseous flows in semidetached binaries after mass transfer termination (2001)
Bisikalo, D. V., Boyarchuk, A. A., Kilpio, A. A., Kuznetsov, O. A., Chechetkin, V. M.
The results of three-dimensional numerical simulations of mass transfer in semidetached binaries after mass transfer termination is presented and the structure of residual accretion disk was...
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
We present synthetic Doppler maps of gaseous flows in semidetached binaries based on the results of 3D gas dynamical simulations. Using of gas dynamical calculations alongside with Doppler tomography...
Non-conservative Evolution of Cataclysmic Variables (2000)
Fedorova, A. V., Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Tutukov, A. V., Yungelson, L. R.
We suggest a new mechanism to account for the loss of angular momentum in binaries with non-conservative mass exchange. It is shown that in some cases the loss of matter can result in increase of the...
Driven-disk model for binaries with precessing donor star. Three-dimensional simulations (2000)
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
We present the results of three-dimensional numerical simulations of mass transfer in semi-detached binary with a donor star whose rotation vector precesses around the orbital rotation axis of the...
Effect of hot oxygen on thermospheric O I UV airglow (1999)
Hubert, Benoît, Gérard, Jean-Claude, Cotton, D M, Bisikalo, D V, Shematovich, V I
The role of nonthermal oxygen atoms in the vertical distribution of the O I 989 Å EUV multiplet intensity is investigated using a thermospheric radiative transfer code. The superthermal oxygen...
Comparison of 2D and 3D models of flow structure in semidetached binaries (1999)
Bisikalo, D. V., Boyarchuk, A. A., Chechetkin, V. M., Kuznetsov, O. A., Molteni, D.
We present the results of systematic comparison of 2D and 3D numerical models of mass transfer in semidetached binaries. It is shown that only for case of \gamma \sim 1 (near-isothermal case) the...
The impact of viscosity on the morphology of gaseous flows in semidetached binary systems (1999)
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
Results of 3D gas dynamical simulation of mass transfer in binaries are presented for systems with various values of viscosity. Analysis of obtained solutions shows that in the systems with low value...
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
We present the results of three-dimensional numerical simulations of mass transfer in semi-detached binary systems in which the mass-losing star is rotating. The cases of aligned and misaligned...
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
The basic parameters determining the flow pattern for a nonviscous, non-heat-conducting gas in a semidetached binary system without a magnetic field are identified. Three-dimensional gas-dynamical...
3D numerical simulation of gaseous flows structure in semidetached binaries (1998)
Bisikalo, D. V., Boyarchuk, A. A., Chechetkin, V. M., Kuznetsov, O. A., Molteni, D.
The results of 3D hydrodynamic simulation of mass transfer in semidetached binaries of different types (cataclysmic variables and low-mass X-ray binaries) are presented. We find that taking into...
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Khruzina, T. S., Cherepashchuk, A. M., Chechetkin, V. M.
The results of three-dimensional numerical simulations of the flow of matter in non-magnetic semidetached binary systems are presented. Self-consistent solutions indicate the absence of a shock...
Impact of a Binary System Common Envelope on Mass Transfer through the Inner Lagrange Point (1998)
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
Results of numerical simulations of the impact of a common envelope on the matter flow pattern near the outflowing component in a semidetached binary system are presented. Three-dimensional modeling...
Three-dimensional Modeling of the Matter Flow Structure in Semidetached Binary Systems (1998)
Bisikalo, D. V., Boyarchuk, A. A., Kuznetsov, O. A., Chechetkin, V. M.
Results of numerical simulations of matter flows in a semidetached binary system similar to the low-mass X-ray binary X1822--371 are presented. Three-dimensional modeling of the mass transfer gas...
An updated model of the hot nitrogen atom kinetics and thermospheric nitric oxide (1997)
Gérard, Jean-Claude, Bisikalo, D V, Shematovich, V I, Duff, J W
New observations and reanalysis of previous measurements suggest an upward revision of the measured thermospheric nitric oxide density. Our previous model of NO production by fast N([SUP]4[/SUP]S)...
Bisikalo, D V, Shematovich, V I, Gérard, Jean-Claude, Gladstone, G R, Waite, J H
The energy distribution functions of nonthermal thermospheric hydrogen atoms are calculated for electron and proton precipitation in the Jovian aurora. A numerical model taking into account the...
Bisikalo, D V, Shematovich, V I, Gérard, Jean-Claude
A model for the oxygen geocorona near the exobase solving the nonlinear Boltzmann equation with a Monte Carlo method is used to calculate the distribution of the hot oxygen atoms during...
The importance of new chemical sources for the hot oxygen geocorona (1995)
Gérard, Jean-Claude, Richards, P G, Shematovich, V I, Bisikalo, D V
Exothermic reactions involving metastable neutrals and ions were recently proposed as sources of hot oxygen atoms in addition to the classical O2(+) and NO(+) dissociative recombination. The...
A kinetic model of the formation of the hot oxygen geocorona. 1: Quiet geomagnetic conditions (1994)
Shematovich, V I, Bisikalo, D V, Gérard, Jean-Claude
A model of the hot oxygen geocorona in the transition region near the exobase is described. It is based on a Monte Carlo solution of the nonlinear Boltzmann equation for hot oxygen atoms produced by...
Gérard, Jean-Claude, Shematovich, V I, Bisikalo, D V
The variation of the nitric oxide peak density near 110 km with solar activity is calculated using a photochemical diffusive model of thermospheric odd nitrogen. This model includes the reaction of...
Effect of hot N(4S) atoms on the NO solar cycle variation in the lower thermosphere (1993)
Gérard, Jean-Claude, Shematovich, V I, Bisikalo, D V
The variation of the nitric oxide peak density near 110 km with solar activity is calculated using a photochemical diffusive model of thermospheric odd nitrogen. This model includes the reaction of...
The thermospheric odd nitrogen photochemistry - Role of non thermal N(4S) atoms (1992)
Shematovich, V I, Bisikalo, D V, Gérard, Jean-Claude
A nonequilibrium model to calculate the Maxwellian 'hot' N(4S) atom population using a Monte Carlo method is developed, and the NO vertical distribution for minimum solar cycle conditions is...
Non thermal nitrogen atoms in the Earth's thermosphere. 2. A source of nitric oxide (1991)
Gérard, Jean-Claude, Shematovich, V I, Bisikalo, D V
The role of the non maxwellian nitrogen atoms in the odd nitrogen thermospheric chemistry is investigated with a numerical model. This one-dimensional model solves the continuity equation, including...
Shematovich, V I, Bisikalo, D V, Gérard, Jean-Claude
The energy distribution of translationally hot nitrogen atoms in the thermosphere has been calculated using a nonequilibrium kinetic model. Dissociation by solar EUV photons and photoelectrons is...