Zobrazeno 1 - 10
of 537
pro vyhledávání: '"Barna, I"'
Autor:
Barna, I. F., Matyas, L.
We investigate diffusion equations which have concentration dependent diffusion coefficients with physically two relevant Ans\"atze, the self-similar and the traveling wave Ansatz. We found that for power-law concentration dependence some of the resu
Externí odkaz:
http://arxiv.org/abs/2310.01466
Autor:
Barna, Barnabas, Nagy, Andrea P., Bora, Zsofia, Czavalinga, Donat R., Konyves-Toth, Reka, Szalai, Tamas, Szekely, Peter, Zsiros, Szanna, Banhidi, Dominik, Biro, Barna I., Csanyi, Istvan, Kriskovics, Levente, Pal, Andras, Szabo, Zsofia M., Szakats, Robert, Vida, Krisztian, Bodola, Zsofia, Vinko, Jozsef
Publikováno v:
A&A 677, A183 (2023)
The nearby spiral galaxy NGC 3147 hosted three Type Ia supernovae (SNe Ia) in the past decades, which have been subjects of intense follow-up observations. Simultaneous analysis of their data provides a unique opportunity for testing the different li
Externí odkaz:
http://arxiv.org/abs/2307.01290
Autor:
Mátyás, L., Barna, I. F.
In the description of transport phenomena an important aspect represents the diffusion. In certain cases the diffusion may appear together with convection. In this paper we study the diffusion equation with the self similar Ansatz. With an appropriat
Externí odkaz:
http://arxiv.org/abs/2304.06824
Publikováno v:
Mathematics 2022, 10, 2311
We investigate a hydrodynamic equation system which - with some approximation - is capable to describe the tsunami propagation in the open ocean with the time-dependent self-similar Ansatz. We found analytic solutions how the wave height and velocity
Externí odkaz:
http://arxiv.org/abs/2202.06314
Autor:
Jäger Jr., Zoltán, Vinkó, József, Bíró, Barna I., Hegedüs, Tibor, Borkovits, Tamás, Jäger Sr., Zoltán, Nagy, Andrea P., Molnár, László, Kriskovics, Levente
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 496, Issue 3, pp.3725-3740, 2020
We present observations and analysis of PSN J17292918+7542390, a low-luminosity Type II-P supernova (LL SN IIP). The observed sample of such events is still low, and their nature is still under debate. Such supernovae are similar to SN 2005cs, a well
Externí odkaz:
http://arxiv.org/abs/2007.07650
Autor:
Barna, I. F., László, Mátyás
Publikováno v:
Mathematical Modelling and Analysis Volume 26, Issue 4, 582-590, 2021
We investigate a one dimensional flow described with the non-compressible coupled Euler and non-compressible Navier-Stokes equations in Cartesian coordinate systems. We couple the two fluids through the continuity equation where different void fracti
Externí odkaz:
http://arxiv.org/abs/2004.09815
Publikováno v:
Eur. Phys. J. Appl. Phys. 84, 20101 (2018)
This work presents an analytic angular differential cross section formula for the electromagnetic radiation field assisted electron scattering by %% was on impurities in semiconductors. These impurities are approximated with various model potentials.
Externí odkaz:
http://arxiv.org/abs/1801.09579
Autor:
Szalai, Tamás, Vinkó, József, Nagy, Andrea P., Silverman, Jeffrey M., Wheeler, J. Craig, Dhungana, Govinda, Marion, G. Howie, Kehoe, Robert, Fox, Ori D., Sárneczky, Krisztián, Marschalkó, Gábor, Bíró, Barna I., Borkovits, Tamás, Hegedüs, Tibor, Szakáts, Róbert, Ferrante, Farley V., Bányai, Evelin, Hodosán, Gabriella, Kelemen, János, Pál, András
SN 2013df is a nearby Type IIb supernova that seems to be the spectroscopic twin of the well-known SN 1993J. Previous studies revealed many, but not all interesting properties of this event. Our goal was to add new understanding of both the early and
Externí odkaz:
http://arxiv.org/abs/1604.08046
Publikováno v:
Phys. Rev. C 93, 024916 (2016)
Utilizing a recently found class of exact, analytic rotating solutions of non-relativistic fireball hydrodynamics, we calculate analytically the single-particle spectra, the elliptic flows and two-particle Bose-Einstein correlation functions for rota
Externí odkaz:
http://arxiv.org/abs/1511.02593
Autor:
Barna, I. F., Varró, S.
Publikováno v:
Nuclear Instruments and Methods in Physics Research B 369 (2016) 77
We present the general theory for proton nuclei scattering in a bichromatic laser field. As a physical example we consider proton collision on carbon twelve at 49 MeV/amu moderate energies in the field of a titan sapphire laser with its second harmon
Externí odkaz:
http://arxiv.org/abs/1506.01926