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2017 year

№	The title of article	Authors	Year	The name of journal	Abstract
1	Dilatonic dyon-like black hole solutions in the model with two Abelian gauge fields	Abishev, M.E., Boshkayev, K.A., Ivashchuk, V.D.	2017	European Physical Journal C, 2017, 77(3), 180, Q2 https://doi.org/10.1140/epjc/s10052-017-4749-1	Dilatonic black hole dyon-like solutions in the gravitational 4d model with a scalar field, two 2-forms, two dilatonic coupling constants λ_i≠ 0 , i= 1 , 2 , obeying λ₁≠ - λ₂ and the sign parameter ε= ± 1 for scalar field kinetic term are considered. Here ε= - 1 corresponds to a ghost scalar field. These solutions are defined up to solutions of two master equations for two moduli functions, when λi2≠1/2 for ε= - 1. Some physical parameters of the solutions are obtained: gravitational mass, scalar charge, Hawking temperature, black hole area entropy and parametrized post-Newtonian (PPN) parameters β and γ. The PPN parameters do not depend on the couplings λ_i and ε. A set of bounds on the gravitational mass and scalar charge are found by using a certain conjecture on the parameters of solutions, when 1+2λi2ε>0, i= 1 , 2.
2	Higgs mechanism and cosmological constant in N= 1 supergravity with inflaton in a vector multiplet	Aldabergenov, Y., Ketov, S.V.	2017	European Physical Journal C, 2017, 77(4), 233, Q2 https://doi.org/10.1140/epjc/s10052-017-4807-8	The N= 1 supergravity models of cosmological inflation with an inflaton belonging to a massive vector multiplet and spontaneous SUSY breaking after inflation are reformulated as the supersymmetric U(1) gauge theories of a massless vector superfield interacting with the Higgs and Polonyi chiral superfields, all coupled to supergravity. The U(1) gauge sector is identified with the U(1) gauge fields of the super-GUT coupled to supergravity, whose gauge group has a U(1) factor. A positive cosmological constant (dark energy) is included. The scalar potential is calculated, and its de Sitter vacuum solution is found to be stable.
3	Physical insight into the Combo-relation	Muccino, M., Boshkayev, K.	2017	Monthly Notices of the Royal Astronomical Society, 2017, 468(1), стр. 570–576, Q1 https://doi.org/10.1093/mnras/stx474	The Combo-relation is a tight relation involving the prompt emission spectral peak energy E_{p, i} and the X-ray afterglow plateau luminosity L₀ and its rest-frame duration τ, and the late power-law decay index α. To explain its features, in this work we investigate the external shock scenario, i.e. the synchrotron emission from the electrons accelerated in a relativistic shock propagating through a cold external medium with density n and interacting with the magnetic field B associated with the turbulent plasma. Three assumptions were introduced: (1) the homologous shock expansion; (2) an electron power-law distribution over a large range of frequencies; and (3) a power-law dependence on the shock radius of B and n. First, we show how the values of E_{p, i}, L₀ and t depend on combinations of the initial values of the magnetic field B₀, shock radius R₀ and medium density n₀, as well as the shock Lorentz factor λ₀ and the electron distribution. Then, we prove that the Combo-relation results from the relationship between E_{p, i}, L₀ and τ and the corresponding comoving quantities that scale with λ₀. Finally, through Monte Carlo simulations, we deduce the typical model parameters, for example, B₀ = 4.6^+253.9 _-4.5 G, R₀ = 7.0^+34.4 _-5.8 × 10¹³ cm and n₀ = 10.00^+7694.62 _-9.99 cm^-3, all in agreement with the results obtained in the literature. We conclude that, within the external shock scenario and its flaws, the Combo-relation represents a new tool for investigating the physics of the prompt and afterglow emissions and for inferring the properties of the gammaray-burst external medium.
4	I-Love-Q relations for white dwarf stars	Boshkayev, K., Quevedo, H., Zhami, B.	2017	Monthly Notices of the Royal Astronomical Society, 2017, 464(4), стр. 4349–4359, Q1 https://doi.org/10.1093/mnras/stw2614	We investigate the equilibrium configurations of uniformly rotating white dwarfs, using Chandrasekhar and Salpeter equations of state in the framework of Newtonian physics. The Hartle formalism is applied to integrate the field equation together with the hydrostatic equilibrium condition.We consider the equations of structure up to the second order in the angular velocity, and compute all basic parameters of rotating white dwarfs to test the so-called moment of inertia, rotational Love number, and quadrupole moment (I-Love-Q) relations. We found that the I-Love-Q relations are also valid for white dwarfs regardless of the equation of state and nuclear composition. In addition, we show that the moment of inertia, quadrupole moment, and eccentricity (I-Q-e) relations are valid as well.
5	New measurements and phase shift analysis of p¹⁶O elastic scattering at astrophysical energies	Dubovichenko, S., Burtebayev, N., Dzhazairov-Kakhramanov, A., Kliczewski, S., Sadykov, T., et al.	2017	Chinese Physics C, 2017, 41(1), 014001, Q2 https://doi.org/10.1088/1674-1137/41/1/014001	The results of new experimental measurements of p¹⁶O elastic scattering in the energy range of 0.6-1.0 MeV at angles of 40°-160° are given. Phase shift analysis of p¹⁶O elastic scattering was made using these and other experimental data on differential cross sections in excitation functions and angular distributions at energies of up to 2.5 MeV.
6	Dispersion relations for gravitational waves in different models of dark energy	Dzhunushaliev, V., Folomeev, V., Kleihaus, B., Kunz, J.	2017	International Journal of Modern Physics D, 2017, 26(14), 1750157, Q2 https://doi.org/10.1142/S0218271817501577	The propagation of weak gravitational waves on the background of dark energy is studied. The consideration is carried out within the framework of an approximate approach where the cosmological scale factor is expanded as a power series for relatively small values of the redshift corresponding to the epoch of the present accelerated expansion of the universe. For several different dark energy models, we obtain dispersion relations for gravitational waves which can be used to estimate the viability of every specific model by comparing with observational data.
7	Extended objects in nonperturbative quantum-field theory and the cosmological constant	Dzhunushaliev, V., Folomeev, V., Kleihaus, B., Kunz, J.	2017	International Journal of Modern Physics D, 2017, 26(7), 1750074, q2 https://doi.org/10.1142/S0218271817500742	We consider a gravitating extended object constructed from vacuum fluctuations of nonperturbatively quantized non-Abelian gauge fields. An approximate description of such an object is given by two gravitating scalar fields. The object has a core filled with a constant energy density of the vacuum fluctuations of the quantum-fields. The core is located inside a cosmological event horizon. An exact analytical solution of the Einstein equations for such a core is presented. The value of the energy density of the vacuum fluctuations is connected with the cosmological constant.
8	Small nonassociative corrections to the SUSY generators and cosmological constant	Dzhunushaliev, V.	2017	International Journal of Geometric Methods in Modern Physics, 2017, 14(5), 1750072, Q2 https://doi.org/10.1142/S0219887817500724	Small nonassociative corrections for the SUSY operators Qa,a are considered. The smallness is controlled by the ratio of the Planck length and a characteristic length ℓ0 = 1/2. Corresponding corrections of the momentum operator arising from the anticommutator of the SUSY operators are considered. The momentum operator corrections are defined via the anticommutator of the unperturbed SUSY operators Qa,a and nonassociative corrections Q1,a,a. Choosing different anticommutators, one can obtain either a modified or q-deformed commutator of position xμ and momentum operators P_v.
9	Formation and decay of resonance states in Be 9 and B 9 nuclei: Microscopic three-cluster model investigations	Vasilevsky, V.S., Kato, K., Takibayev, N.Z.	2017	Physical Review C, 2017, 96(3), 034322, Q2 https://doi.org/10.1103/PhysRevC.96.034322	We study the nature of the low-lying resonance states in mirror nuclei Be9 and B9. Investigations are performed within a three-cluster model. The model makes use of the hyperspherical harmonics, which provides a convenient description of the three-cluster continuum. The dominant three-cluster configurations α+α+n and α+α+p in Be9 and B9, respectively, are taken into account. Dominant decay channels for all resonance states in Be9 and B9 are explored. Much attention is paid to the controversial 1/2+ resonance states in both nuclei. We study effects of the Coulomb interaction on the energy and width of three-cluster resonances in the mirror nuclei Be9 and B9. We also search for the Hoyle-analog state, which is a key step for alternative ways to synthesize Be9 and B9 in triple collisions of clusters in a stellar environment.