Subjects -> ASTRONOMY (Total: 94 journals)
 Showing 1 - 46 of 46 Journals sorted alphabetically Advances in Astronomy       (Followers: 54) Annual Review of Astronomy and Astrophysics       (Followers: 45) Annual Review of Earth and Planetary Sciences       (Followers: 65) Artificial Satellites       (Followers: 23) Astrobiology       (Followers: 15) Astronomical & Astrophysical Transactions: The Journal of the Eurasian Astronomical Society       (Followers: 8) Astronomical Journal       (Followers: 10) Astronomical Review       (Followers: 4) Astronomische Nachrichten       (Followers: 4) Astronomy & Geophysics       (Followers: 49) Astronomy and Astrophysics       (Followers: 66) Astronomy and Astrophysics       (Followers: 39) Astronomy and Computing       (Followers: 3) Astronomy Letters       (Followers: 22) Astronomy Reports       (Followers: 16) Astronomy Studies Development       (Followers: 12) Astroparticle Physics       (Followers: 8) Astrophysical Bulletin       (Followers: 3) Astrophysical Journal       (Followers: 19) Astrophysical Journal Letters       (Followers: 14) Astrophysical Journal Supplement Series       (Followers: 13) Astrophysics       (Followers: 32) Astrophysics and Space Science       (Followers: 47) Astrophysics and Space Sciences Transactions (ASTRA)       (Followers: 57) Astropolitics: The International Journal of Space Politics & Policy       (Followers: 12) Celestial Mechanics and Dynamical Astronomy       (Followers: 13) Chinese Astronomy and Astrophysics       (Followers: 25) Chinese Journal of Astronomy and Astrophysics       (Followers: 17) Colloid Journal       (Followers: 3) Comptes Rendus Physique       (Followers: 2) Computational Astrophysics and Cosmology       (Followers: 6) COSPAR Colloquia Series       (Followers: 11) Earth, Moon, and Planets       (Followers: 55) Earth, Planets and Space       (Followers: 75) EAS Publications Series       (Followers: 8) EPL Europhysics Letters       (Followers: 8) Experimental Astronomy       (Followers: 39) Expert Opinion on Astronomy and Astrophysics       (Followers: 8) Extreme Life, Biospeology & Astrobiology - International Journal of the Bioflux Society       (Followers: 6) Few-Body Systems       (Followers: 1) Foundations of Physics       (Followers: 41) Frontiers in Astronomy and Space Sciences       (Followers: 12) Galaxies       (Followers: 6) Globe, The       (Followers: 4) Gravitation and Cosmology       (Followers: 4) Icarus       (Followers: 75) International Journal of Advanced Astronomy       (Followers: 28) International Journal of Astrobiology       (Followers: 5) International Journal of Astronomy       (Followers: 19) International Journal of Astronomy and Astrophysics       (Followers: 30) International Journal of Satellite Communications Policy and Management       (Followers: 13) International Letters of Chemistry, Physics and Astronomy       (Followers: 12) ISRN Astronomy and Astrophysics       (Followers: 9) Journal for the History of Astronomy       (Followers: 20) Journal of Astrobiology & Outreach       (Followers: 3) Journal of Astronomical Instrumentation       (Followers: 3) Journal of Astronomical Telescopes, Instruments, and Systems       (Followers: 5) Journal of Astrophysics       (Followers: 30) Journal of Astrophysics and Astronomy       (Followers: 55) Journal of Atmospheric and Solar-Terrestrial Physics       (Followers: 199) Journal of Cosmology and Astroparticle Physics       (Followers: 38) Journal of Geophysical Research : Planets       (Followers: 177) Journal of Geophysical Research : Space Physics       (Followers: 182) Journal of High Energy Astrophysics       (Followers: 24) Kinematics and Physics of Celestial Bodies       (Followers: 10) KronoScope       (Followers: 1) Macalester Journal of Physics and Astronomy       (Followers: 4) MNASSA : Monthly Notes of the Astronomical Society of South Africa       (Followers: 1) Molecular Astrophysics       (Followers: 3) Monthly Notices of the Royal Astronomical Society       (Followers: 13) Monthly Notices of the Royal Astronomical Society : Letters Nature Astronomy       (Followers: 10) New Astronomy       (Followers: 28) New Astronomy Reviews       (Followers: 17) Nonlinear Dynamics       (Followers: 20) NRIAG Journal of Astronomy and Geophysics       (Followers: 5) Open Astronomy       (Followers: 3) Physics of the Dark Universe       (Followers: 4) Planetary and Space Science       (Followers: 101) Planetary Science       (Followers: 52) Proceedings of the International Astronomical Union       (Followers: 2) Publications of the Astronomical Society of Australia       (Followers: 2) Publications of the Astronomical Society of Japan       (Followers: 3) Publications of the Astronomical Society of the Pacific       (Followers: 4) Research & Reviews : Journal of Space Science & Technology       (Followers: 17) Research in Astronomy and Astrophysics       (Followers: 33) Revista Mexicana de Astronomía y Astrofísica       (Followers: 2) Science China Physics, Mechanics & Astronomy       (Followers: 4) Solar Physics       (Followers: 35) Solar System Research       (Followers: 15) Space Science International       (Followers: 199) Space Science Reviews       (Followers: 97) Space Weather       (Followers: 25) Transport and Aerospace Engineering       (Followers: 13) Universe       (Followers: 6)
Similar Journals
 EPL Europhysics LettersJournal Prestige (SJR): 0.498 Citation Impact (citeScore): 1Number of Followers: 8      Partially Free Journal ISSN (Print) 0295-5075 - ISSN (Online) 1286-4854 Published by IOP  [74 journals]
• Confinement of bosonic and spinning particles in braneworlds
• Authors: F. E. A. Souza; G. Alencar, L. F. F. Freitas R. R. Landim
First page: 50001
Abstract: In this paper the confinement of bosonic and spinning test particles in smooth Randall-Sundrum models is studied. For this, we show the possibility of finding an effective potential that describes the motion of the particle over the extra dimension. For the bosonic case, it is a known fact that free test particles can be located neither on thin nor on thick branes. Recently, a coupling to a scalar field has been used to localize a limited range of masses. Up to now, no trapped test particles of any mass over the brane were found. In order to solve this, it is shown that a coupling with the dilaton may trap particles of any mass. Next, the spinning particle is analyzed. The spin variables, ##IMG## [http://ej.iop.org/images/0295-5075/133/5/50001/epl20501ieqn1.gif] {$\psi^{P}$} , introduced an interaction with the Riemann curvature tensor. It introduced a correction to the effective potential. By analyzing it, it was found that the spinning particle may be loc...
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-05T23:00:00Z
DOI: 10.1209/0295-5075/133/50001
Issue No: Vol. 133, No. 5 (2021)

• Effects of Coulomb- and Cornell-types potential on a spin-0 scalar
particle under a magnetic field and quantum flux in topological defects
space-time
• Authors: Faizuddin Ahmed
First page: 50002
Abstract: We investigate quantum motion of spin-0 scalar particles in the presence of a uniform magnetic field including quantum flux under the effects of Cornell- and Coulomb-type potentials in cosmic string space-time. We evaluate the energy eigenvalues and eigenfunctions and analyze a relativistic analogue of the Aharonov-Bohm effect. We show that the potentials allow the formation of bound states solution, and the dependence of the magnetic field on quantum numbers of the system gives a quantum effect.
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-08T23:00:00Z
DOI: 10.1209/0295-5075/133/50002
Issue No: Vol. 133, No. 5 (2021)

• Shock wave structure of multi-temperature Grad 10-moment equations for a
binary gas mixture
• Authors: M. Bisi; M. Groppi, A. Macaluso G. Martalò
First page: 54001
Abstract: A multi-temperature formal hydrodynamic limit of kinetic equations, based on Grad-type approximation of the distribution functions, is employed for the analysis of the steady shock problem in a binary mixture. The presence of a singular barrier and its effects on the occurrence of either smooth profiles or of weak solutions with a discontinuity is investigated for varying Mach number. Some numerical simulations of mixtures of two noble gases are presented and commented on, with reference also to analogous phenomena in different model descriptions.
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-05T23:00:00Z
DOI: 10.1209/0295-5075/133/54001
Issue No: Vol. 133, No. 5 (2021)

• Electron-ion inverse bremsstrahlung absorption in magnetized fusion plasma
• Authors: Boultif Oussama; Ghezal Abdenasser Abdelaziz Sid
First page: 55001
Abstract: Magneto-inertial fusion (MIF) is an approach for thermonuclear fusion. It consists in applying a strong magnetic field to the inertial-fusion plasma, with the role of the magnetic field being to limit the diffusion of the formed plasma during the impact of an intense laser pulse with a target containing the thermonuclear fuel, as well as the confinement alpha particles produced by the fusion reaction. This allows the reduction of energy loss and improves compression conditions. In this paper we are interested in the study of the electron-ion inverse bremsstrahlung absorption (IBA) of the laser energy in magnetized plasma in the MIF frame. In addition, we apply the derived formula to calculate the absorption in magnetic fusion plasma heated by microwave. We use the Fokker-Planck-Maxwell theory to calculate the IBA explicitly in magnetized plasma. Scaling laws for IBA in MIF plasma and for magnetic confinement plasma are established. The numerical treatment of the model equations ...
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-07T23:00:00Z
DOI: 10.1209/0295-5075/133/55001
Issue No: Vol. 133, No. 5 (2021)

• Double band inversion in the topological phase transition of Ge 1-x Sn x
alloys
• Authors: Rui Tan; Qirui Yang, Ruiyuan Chen, Yu Qiao, Shouqiao Tan, Yanqiang Cao, Peng Wang, Tai-Chang Chiang Xiaoxiong Wang
First page: 57001
Abstract: We use first-principles simulation and alchemical mixing approximation to reveal the unique double band inversion and topological phase transition in Ge ##IMG## [http://ej.iop.org/images/0295-5075/133/5/57001/epl20483ieqn1.gif] {$_{1-\mathit{x}}$} Sn ##IMG## [http://ej.iop.org/images/0295-5075/133/5/57001/epl20483ieqn2.gif] {$_{\mathit{x}}$} alloys. Wave function parity, spatial charge distribution and surface state spectrum analyses suggest that the band inversion in Ge ##IMG## [http://ej.iop.org/images/0295-5075/133/5/57001/epl20483ieqn3.gif] {$_{1-\mathit{x}}$} Sn ##IMG## [http://ej.iop.org/images/0295-5075/133/5/57001/epl20483ieqn4.gif] {$_{\mathit{x}}$} is relayed by its first valence band. As the system evolves from Ge to ##IMG## [http://ej.iop.org/images/0295-5075/133/5/57001/epl20483ieqn5.gif] {${\alpha}$} -Sn, its conduction band moves down, and inverts with the f...
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-05T23:00:00Z
DOI: 10.1209/0295-5075/133/57001
Issue No: Vol. 133, No. 5 (2021)

• Nonequilibrium-DMFT based RIXS investigation of the two-orbital Hubbard
model
• Authors: Philipp Werner; Steven Johnston Martin Eckstein
First page: 57005
Abstract: Resonant inelastic X-ray scattering (RIXS) detects various types of high- and low-energy elementary excitations in correlated solids, and this tool will play an increasingly important role in investigations of time-dependent phenomena in photo-excited systems. While theoretical frameworks for the computation of equilibrium RIXS spectra are well established, the development of appropriate methods for nonequilibrium simulations is an active research field. Here, we apply a recently developed nonequilibrium dynamical mean field theory (DMFT) based approach to compute the RIXS response of photo-excited two-orbital Mott insulators. The results demonstrate the feasibility of multi-orbital nonequilibrium RIXS calculations and the sensitivity of the quasi-elastic fluorescence-like features and ##IMG## [http://ej.iop.org/images/0295-5075/133/5/57005/epl20500ieqn1.gif] {$d{\text{-}}d$} excitation peaks on the nonequilibrium population of the Hubbard bands.
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-11T23:00:00Z
DOI: 10.1209/0295-5075/133/57005
Issue No: Vol. 133, No. 5 (2021)

• Universal scaling law for human-to-human transmission diseases
• Authors: Ben-Hur Francisco Cardoso; Sebastián Gonçalves
First page: 58001
Abstract: Due to the COVID-19 pandemic, Susceptible-Infective-Recovered (SIR) models and their variants are in high demand for predicting the number of cases in urban areas. Aiming to correctly use the experience of the epidemic evolution from one local to another, we present an analysis of the transmission rate of COVID-19 as a function of population size at the metropolitan area level for the United States. Contrary to the usual hypothesis in epidemics modeling, we observe that the disease transmissibility scales with the logarithm of the local's population size. The analysis, made possible by a large amount of data available on simultaneous epidemics of the same type, is universal for any human-to-human transmission disease. We present a contact rate scaling theory that explains the results.
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-05T23:00:00Z
DOI: 10.1209/0295-5075/133/58001
Issue No: Vol. 133, No. 5 (2021)

• Electronic structure, magnetic properties, and elastic properties of
full-Heusler alloys Cr 2-x Fe x MnSi (x=0, 1, and 2)
• Authors: Chuang Wu; Wei Zheng, Nan Si, Chunmei Li, Yanli Zhang Wei Jiang
First page: 58002
Abstract: In this study, we have systematically investigated the electronic structures, magnetic and elastic properties of the full-Heusler compounds Cr 2- x Fe x MnSi ( ##IMG## [http://ej.iop.org/images/0295-5075/133/5/58002/epl20506ieqn1.gif] {$x = 0$} , 1, and 2) by density functional theory calculations using the CASTEP with the generalized gradient approximation for the exchange-correlation functional. Our calculation results show that the Cr 2 MnSi, CrFeMnSi and Fe 2 MnSi alloys exhibit excellent half-metallic materials, and half-metallic band gap will be larger as the number of Fe atoms increases. The magnetism originates from the spin contribution of Cr-, Fe- and Mn- d orbital electrons and the strong hybridization between them. The total magnetic moment of Cr 2- x Fe x MnSi ( ##IMG## [http://ej.iop.org/images/0295-5075/133/5/58002/epl20506...] {$x = 0$}
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-07T23:00:00Z
DOI: 10.1209/0295-5075/133/58002
Issue No: Vol. 133, No. 5 (2021)

• Zigzag instability of biased pusher swimmers
• Authors: Eric Lauga; Thanh Nghi Dang Takuji Ishikawa
First page: 44002
Abstract: Microorganisms self-propelling in a fluid create flow fields that impact the dynamics of other swimmers. Some organisms can be biased and have a preferred swimming direction, e.g. , those displaying gyrotaxis, chemotaxis or phototaxis, and as a result often focus along thin lines. Here we use numerical computations and far-field theoretical calculations to show that the position of a collection of biased swimmers moving along a line is unstable to a zigzag mode when the swimmers act on the fluid as pusher dipoles. This instability takes the form of periodic transverse oscillations in the position of the swimmers. We predict theoretically that the most unstable wavelength is equal to twice the inter-swimmer distance and that the growth rate of the instability increases linearly with the magnitude of the stresslet, both of which are in quantitative agreement with our numerical simulations.
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-08T23:00:00Z
DOI: 10.1209/0295-5075/133/44002
Issue No: Vol. 133, No. 4 (2021)

• On quarks and the origin of QCD: Partons and baryons from intrinsic states
• Authors: Ole L. Trinhammer
First page: 31001
Abstract: We create quarks from baryons in stead of constituting baryons from quarks. The quantum fields of QCD are generated via the exterior derivative (momentum form) of baryon wave functions on an intrinsic configuration space, the Lie group U (3). Local gauge transformations correspond to coordinate translations in the intrinsic space. A proton spin structure function and a proton magnetic moment are derived. We show how the spectrum of unflavoured baryons, the N and Delta resonances, can be understood from a mass Hamiltonian on the intrinsic space and note how our model resolves the problem of colour confinement. We calculate an approximate value for the relative neutron-to-proton mass shift and give an exact value for the neutron mass. We predict neutral charge singlets that may be interpreted as neutral pentaquarks at LHCb.
Citation: EPL (Europhysics Letters)
PubDate: 2021-04-06T23:00:00Z
DOI: 10.1209/0295-5075/133/31001
Issue No: Vol. 133, No. 3 (2021)

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