17 citations · 98 across the 17 of their papers we have counts for
17 papers
Collisional Pumping of HO and CHOH Masers in C-Type Shock Waves
A. V. Nesterenok
The collisional pumping of HO and CHOH masers in magnetohydrodynamic nondissociative C-type shocks is considered. A grid of C-type shock models with speeds in the range $5-…
Modelling cosmic masers in C-type shock waves -- the coexistence of Class I CH3OH and 1720 MHz OH masers
A. V. Nesterenok
The collisional pumping of CH3OH and OH masers in non-dissociative C-type shock waves is studied. The chemical processes responsible for the evolution of molecule abundances in the…
The candidates for Class I methanol masers
A. V. Nesterenok
The collisional excitation of methanol molecule in non-dissociative magnetohydrodynamic shock waves is considered. All essential chemical processes that determine methanol abundanc…
Collisional Pumping of OH Masers near Supernova Remnants
A. V. Nesterenok
The collisional pumping of OH masers in non-dissociative C-type shocks near supernova remnants is considered. The emergence of maser emission in OH lines is investigated for variou…
The Sobolev approximation for radiation transport with line overlap and continuous opacity
Aleksandr Nesterenok
The radiation transport problem in the plane-parallel medium with the large velocity gradient is considered. The Sobolev approximation is used. The effects of continuum absorption…
Chemical evolution of cold dark clouds in the vicinity of supernova remnants
A. V. Nesterenok
The supernova explosion increases cosmic ray and x-ray fluxes in the surrounding interstellar medium. Cosmic ray particles and x-ray radiation penetrate nearby molecular clouds and…
C-type shock modelling -- the effect of new H-H collisional rate coefficients
A. V. Nesterenok, D. Bossion, Y. Scribano +1
We consider collisional excitation of H molecules in C-type shocks propagating in dense molecular clouds. New data on collisional rate coefficients for (de-)excitation of H…
Chemical evolution of the gas in C-type shocks in dark clouds
A. V. Nesterenok
A magnetohydrodynamic model of a steady, transverse C-type shock in a dense molecular cloud is presented. A complete gas-grain chemical network is taken into account: the gas-phase…
Production of He in Rocks by Reactions Induced by Particles of the Nuclear-Active and Muon Components of Cosmic Rays: Geological and Petrological Implications
A. V. Nesterenok, O. V. Yakubovich
The paper presents data on the production of the He nuclide in rocks under the effect of cosmic-ray particles. The origin of the nuclide in the ground in neutron- and proton-in…
Modelling CHOH masers: Sobolev approximation and accelerated lambda iteration method
Aleksandr Nesterenok
A simple one-dimensional model of CHOH maser is considered. Two techniques are used for the calculation of molecule level populations: the accelerated lambda iteration (ALI) me…
Model of the vibrationally excited HO maser at 658 GHz in circumstellar envelopes around asymptotic giant branch stars
Aleksandr Nesterenok
The model is presented of HO maser in the line within the first excited vibrational state of the molecule around oxygen-rich asymptotic giant branch stars. It i…
HO Maser Pumping: The Effect of Quasi-Resonance Energy Transfer in Collisions between H and HO Molecules
A. V. Nesterenok, D. A. Varshalovich
The effect of quasi-resonance energy transfer in collisions between H and HO molecules in HO maser sources is investigated. New data on the state-to-state rate coeffici…
H2O Maser Emission in Circumstellar Envelopes around AGB Stars: Physical Conditions in Gas-Dust Clouds
Aleksandr Nesterenok
The pumping of 22.2-GHz HO masers in the circumstellar envelopes of asymptotic giant branch stars has been simulated numerically. The physical parameters adopted in the calcula…
Simulation of pumping mechanism of H2O-masers in circumstellar envelopes of late-type stars
Aleksandr Nesterenok
The radiative transfer problem is considered in dense gas-dust clouds. Physical parameters are adopted in simulations corresponding to gas-dust clouds in the circumstellar envelope…
Calculation of the Solar Activity Effect on the Production Rate of Cosmogenic Radiocarbon in Polar Ice
A. V. Nesterenok, V. O. Naidenov
The propagation of cosmic rays in the Earth's atmosphere is simulated. Calculations of the omnidirectional differential flux of neutrons for different solar activity levels are pre…
H_2^{16}O and H_2^{18}O Maser Emission from Gas-Dust Clouds
Aleksandr Nesterenok, Dmitry Varshalovich
The collisional pumping of H_2^{16}O and H_2^{18}O masers in hot dense gas-dust clouds has been simulated numerically. New data on the rate coefficients for collisional transitions…
Asymmetry in the Spectrum of High-Velocity H2O Maser Emission Features in Active Galactic Nuclei
A. V. Nesterenok, D. A. Varshalovich
We suggest a mechanism for the amplification of high-velocity water-vapor maser emission features from the central regions of active galactic nuclei. The model of an emitting accre…