Измерение профиля температуры в холодной поверхностной пленке океана и математическая модель интерпретации результатов
Измерение профиля температуры в холодной поверхностной пленке океана и математическая модель интерпретации результатов
С.С. Задорожный, М.Л. Сердобольская, Е.Г. Андреев
Приведены результаты компьютерной обработки результатов измерений температуры. Использованные математические методы позволяют минимизировать ошибку измерений, связанную с инерционностью датчиков температуры, и выделить случайную ошибку. Проведен анализ модели измерения и выбрана модель, наилучшим образом согласующаяся с экспериментальными данными.
Show AbstractМногокомпонентное обобщение метода моделирующих потенциалов
Многокомпонентное обобщение метода моделирующих потенциалов
В.Н. Сидоренко
Рассматривается многокомпонентное обобщение метода моделирующих потенциалов для построения энергетического спектра уравнения Шрёдингера в рамках квазиклассического подхода.
Show AbstractОб устойчивости в нелинейном приближении коллинеарных точек либрации в пространственной ограниченной эллиптической фотогравитационной задаче трех тел
Об устойчивости в нелинейном приближении коллинеарных точек либрации в пространственной ограниченной эллиптической фотогравитационной задаче трех тел
А.Ю. Кочеткова
Впервые в нелинейном приближении исследованы области устойчивости коллинеарных точек либрации в ограниченной обобщенной фотогравитационной эллиптической задаче трех тел.
Show AbstractAxion emission by electrons scattered by fiuxoids in a superconducting core of a neutron star
Axion emission by electrons scattered by fiuxoids in a superconducting core of a neutron star
A.V. Borisov, P.E. Sizin
Axion bremsstrahlung by electrons scattered in a magnetic field of Abrikosov strings (fluxoids) with a single quantum of magnetic flux is considered. The axion luminosity of a highly degenerate relativistic electron gas caused by the above process taking place in the superconducting core of a neutron star is calculated. By comparing this luminosity with that caused by neutrino pair bremsstrahlung in electron scattering by fluxoids, restriction on the axion-electron coupling constant is obtained.
Show AbstractFragmentation of polyatomic organic molecules on the surface under the action of low-energy ions
Fragmentation of polyatomic organic molecules on the surface under the action of low-energy ions
V.V. Komarov$^1$, A.M. Popova$^1$, I.O. Stureiko$^1$, H. Jungclas$^2$
A model of the excitation of collective vibrational states (excimoles) in molecular chains of ordered valence groups of the C-F and C-H types (contained in thin organic films) under the action of sliding ions whose velocity is less than the Bohr velocity is proposed. The probabilities of accumulation of several excimoles and fragmentation of molecular chains in relation to the velocity of initial ions and the structure of molecules are analyzed.
Show AbstractBinary primordial black holes as sources of gamma-ray-bursts and high-frequency gravitational radiation
Binary primordial black holes as sources of gamma-ray-bursts and high-frequency gravitational radiation
D.N. Abdurashitov, K.V. Parfenov, V.E. Yants
If supercompact binary systems formed by primordial black holes (PBH} with masses $m>10^{16}$ g constitute the major part of the dark matter in the Universe, then the high frequency diffuse gravitational radiation with the flux of the order of 1 erg$\cdot$см$^{-2}\cdot$с$^{-1}$ should be expected. A possibility that a part of the gammaray-bursts observed is a consequence of coalescence of binary PBH in the Galaxy halo limits is discussed. It is pointed out that these systems can be detected when high-frequency ($\omega>10^4$ Hz) gravitational radiation is recorded.
Show AbstractThreshold sensitivity of a stroboscopic coordinate meter
Threshold sensitivity of a stroboscopic coordinate meter
N.V. Kozlov, F.Ya. Khalili
Exact expressions for a threshold sensitivity of a stroboscopic coordinate meter have been obtained. A particular case of application of a small-displacement modulating transducer is considered.
Show AbstractApplication of the GCV method to well- and ill-posed problems
Application of the GCV method to well- and ill-posed problems
V.N. Titarenko, A.G. Yagola
On an example of systems of linear algebraic equations, it is shown that the algorithm for solving ill-posed problems based on the GCV method is not regularizing in the general case.
Show AbstractStructure of the photon polarization operator in an external nonuniform non-Abelian gauge field
Structure of the photon polarization operator in an external nonuniform non-Abelian gauge field
V.Ch. Zhukovskii, V.V. Khudyakov
The photon polarization operator (PO) in an external constant chromomagnetic field is considered. For the case of a weak uniform external field, the one-loop scalar and spinor quark contributions to its antisymmetric component as well as an induced topological photon mass are obtained. Using the instanton field as an example, the P0 in the nonuniform external field case is considered.
Show AbstractCompetition of photoneutron and photoproton channels in photodisintegration of atomic nuclei
Competition of photoneutron and photoproton channels in photodisintegration of atomic nuclei
S.S. Borodina, B.S. Ishkhanov, V.I. Mokeev, S.I. Pavlov
A model for describing the ratios of integrated cross sections of the $(\gamma, Xn)$ and $(\gamma,p)$ reactions for $10