Search Results - "Wiebe, D. S."

Dust dynamics and evolution in expanding H ii regions. I. Radiative drift of neutral and charged grains by Akimkin, V. V., Kirsanova, M. S., Pavlyuchenkov, Ya. N., Wiebe, D. S.

“…We consider dust drift under the influence of stellar radiation pressure during the pressure-driven expansion of an H ii region using the chemo-dynamical model…”
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Infrared emission and the destruction of dust in HII regions by Pavlyuchenkov, Ya. N., Kirsanova, M. S., Wiebe, D. S.

“…The generation of infrared (IR) radiation and the observed IR-intensity distribution at wavelengths of 8, 24, and 100 µm in the ionized hydrogen region around…”
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A Unified Monte Carlo Treatment of Gas-Grain Chemistry for Large Reaction Networks. I. Testing Validity of Rate Equations in Molecular Clouds by Vasyunin, A. I, Semenov, D. A, Wiebe, D. S, Henning, Th

“…In this study, we demonstrate for the first time that the unified Monte Carlo (MC) approach can be applied to model gas-grain chemistry in large reaction…”
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Optical and infrared emission of H ii complexes as a clue to the PAH life cycle by Khramtsova, M. S., Wiebe, D. S., Lozinskaya, T. A., Egorov, O. V.

“…We present an analysis of optical spectroscopy and infrared aperture photometry of more than 100 H ii complexes in nine galaxies. Spectra obtained with the 6-m…”
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Auxin regulates functional gene groups in a fold-change-specific manner in Arabidopsis thaliana roots by Omelyanchuk, N. A., Wiebe, D. S., Novikova, D. D., Levitsky, V. G., Klimova, N., Gorelova, V., Weinholdt, C., Vasiliev, G. V., Zemlyanskaya, E. V., Kolchanov, N. A., Kochetov, A. V., Grosse, I., Mironova, V. V.

“…Auxin plays a pivotal role in virtually every aspect of plant morphogenesis. It simultaneously orchestrates a diverse variety of processes such as cell wall…”
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Physical conditions in star-forming regions around S235 by Kirsanova, M. S., Wiebe, D. S., Sobolev, A. M., Henkel, C., Tsivilev, A. P.

“…Gas density and temperature in star-forming regions around Sh2-235 are derived from ammonia line observations. This information is used to evaluate formation…”
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A New Modified-Rate Approach For Gas-Grain Chemistry: Comparison with a Unified Large-Scale Monte Carlo Simulation by Garrod, R. T, Vasyunin, A. I, Semenov, D. A, Wiebe, D. S, Henning, Th

“…We compare the results of the unified Monte Carlo chemical model with the new modified-rate equation (MRE) method under a wide range of interstellar…”
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Stochastic grain heating and mid-infrared emission in protostellar cores by Pavlyuchenkov, Ya. N., Wiebe, D. S., Akimkin, V. V., Khramtsova, M. S., Henning, Th

“…Stochastic heating of small grains is often mentioned as a primary cause of large infrared (IR) fluxes from star-forming galaxies, for example, at 24 m. If the…”
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Star formation around the H ii region Sh2-235 by Kirsanova, M. S., Sobolev, A. M., Thomasson, M., Wiebe, D. S., Johansson, L. E. B., Seleznev, A. F.

“…We present a picture of star formation around the H ii region Sh2-235 (S235) based upon data on the spatial distribution of young stellar clusters and the…”
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Efficiency of the top-down polycyclic aromatic hydrocarbon-to-fullerene conversion in ultraviolet irradiated environments by Murga, M S, Akimkin, V V, Wiebe, D S

“…ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) and fullerenes play a major role in the physics and chemistry of the interstellar medium (ISM). Based on a…”
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shiva: a dust destruction model by Murga, M S, Wiebe, D S, Sivkova, E E, Akimkin, V V

“…ABSTRACT We present a numerical tool, shiva, designed to simulate the dust destruction in warm neutral, warm ionized and hot ionized media under the influence…”
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Star formation time-scale in the molecular filament WB 673 by Ryabukhina, O L, Kirsanova, M S, Henkel, C, Wiebe, D S

“…ABSTRACT We present the observations of ammonia emission lines toward the interstellar filament WB 673 hosting the dense clumps WB 673, WB 668, S233-IR, and…”
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Methyl Formate Synthesis Pathways at Various Star Formation Stages by Kochina, O. V., Wiebe, D. S.

“…Here we present the results of a numerical study of the main reactions that determine the methyl formate abundance under conditions of a low-mass protostellar…”
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3D structure of the H  ii region Sh2-235 from tunable-filter optical observations by Kirsanova, M S, Boley, P A, Moiseev, A V, Wiebe, D S, Uklein, R I

“…ABSTRACT We present observations of the H α, H β, [S ii] λλ6716, 6731 and [N ii] λ6583 emission lines in the galactic H ii region Sh2-235 with the Mapper of…”
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The warm-up phase in massive star-forming cores around RCW 120 by Kirsanova, M S, Salii, S V, Kalenskii, S V, Wiebe, D S, Sobolev, A M, Boley, P A

“…ABSTRACT We study molecular emission in a massive condensation at the border of the H ii region RCW 120, paying particular attention to the Core 1 and 2…”
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Molecular envelope around the HII region RCW 120 by Kirsanova, M S, Pavlyuchenkov, Ya N, Wiebe, D S, Boley, P A, Salii, S V, Kalenskii, S V, Sobolev, A M, Anderson, L D

“…ABSTRACT The H ii region RCW 120 is a well-known object, which is often considered as a target to verify theoretical models of gas and dust dynamics in the…”
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Observations in the UV Band and Problems of Star Formation Studies by Wiebe, D. S.

“…In this contribution, I consider those aspects of the modern star formation theory, which can be substantiated with observations in the UV band, paying special…”
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Anisotropy of Magnetohydrodynamic Turbulence and Polarization of the Spectral Lines of Molecules by Wiebe, D. S, Watson, W. D

“…The anisotropy of velocities in MHD turbulence is demonstrated explicitly by calculating the velocity gradients as a function of direction in representative…”
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Uncertainty in Estimates of Dissociation Rates of Polycyclic Aromatic Hydrocarbons in the Interstellar Medium by Murga, M. S., Wiebe, D. S.

“…This study is devoted to the estimation of dissociation rates for polycyclic aromatic hydrocarbons (PAHs) molecules due to ultraviolet photon absorption. Four…”
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Luminosity Outbursts in Protoplanetary Discs: A Three-Phase Astrochemical Model by Borshcheva, E. V., Wiebe, D. S.

“…The influence of the multilayer structure of cosmic dust ice mantles on the chemical processes occurring in them before, during and after protoplanetary disc…”
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