Zobrazeno 1 - 10
of 1 516
pro vyhledávání: '"Witt H"'
Autor:
Mallik, S., Ménard, G., Saïz, G., Witt, H., Lesueur, J., Gloter, A., Benfatto, L., Bibes, M., Bergeal, N.
After almost twenty years of intense work on the celebrated LaAlO3/SrTiO3 system, the recent discovery of a superconducting two-dimensional electron gases (2-DEG) in (111)-oriented KTaO3-based heterostructures injects new momentum to the field of oxi
Externí odkaz:
http://arxiv.org/abs/2204.09094
Autor:
Chugunov, A. I., De Witt, H. E.
Publikováno v:
Contrib. Plasma Phys, 49 (2009), 696
Using the results of extensive Monte Carlo simulations we discuss corrections to the linear mixing rule in strongly coupled binary ionic mixtures. We analyze the plasma screening function at zero separation, H_{jk}(0), for two ions (of types j=1,2 an
Externí odkaz:
http://arxiv.org/abs/0911.4354
Autor:
Chugunov, A. I., De Witt, H. E.
Publikováno v:
Phys.Rev.C80:014611,2009
We analyze the effect of plasma screening on nuclear reaction rates in dense matter composed of atomic nuclei of one or two types. We perform semiclassical calculations of the Coulomb barrier penetrability taking into account a radial mean field pote
Externí odkaz:
http://arxiv.org/abs/0905.3844
Autor:
Dennis Witt H.
Publikováno v:
Revista Médica Clínica Las Condes, Vol 31, Iss 5, Pp 386- (2020)
Externí odkaz:
https://doaj.org/article/12c79b639ec54aa8b820fec3e046f091
Autor:
Evans, N. W., Witt, H. J.
Publikováno v:
Mon.Not.Roy.Astron.Soc.345:1351,2003
The observables in a strong gravitational lens are usually just the image positions and sometimes the flux ratios. We develop a new and simple algorithm which allows a set of models to be fitted exactly to the observations. Taking our cue from the st
Externí odkaz:
http://arxiv.org/abs/astro-ph/0212013
Autor:
Evans, N. W., Witt, H. J.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 327 (2001) 1260-1268
We study gravitational lensing by the family of scale-free galaxies with flat rotation curves. The models are defined by a shape function, which prescribes the radius of the isophote as a function of position angle from the major axis. The critical c
Externí odkaz:
http://arxiv.org/abs/astro-ph/0108374
Publikováno v:
Mon.Not.Roy.Astron.Soc. 323 (2001) 301
Recent observations indicate that many if not all galaxies host massive central black holes. In this paper we explore the influence of black holes on the lensing properties. We model the lens as an isothermal ellipsoid with a finite core radius plus
Externí odkaz:
http://arxiv.org/abs/astro-ph/0007011
We study gravitational lens time delays for a general family of lensing potentials, which includes the popular singular isothermal elliptical potential and singular isothermal elliptical density distribution but allows general angular structure. Usin
Externí odkaz:
http://arxiv.org/abs/astro-ph/0004069
We study the problem of gravitational lensing by an isothermal elliptical density galaxy in the presence of a tidal perturbation. When the perturbation is fairly strong and oriented near the galaxy's minor axis, the lens can produce image configurati
Externí odkaz:
http://arxiv.org/abs/astro-ph/0002401
The dynamic structure factor ${\tilde S}({\bf k},\omega)$ and the two-particle distribution function $g({\bf r},t)$ of ions in a Coulomb crystal are obtained in a closed analytic form using the harmonic lattice (HL) approximation which takes into acc
Externí odkaz:
http://arxiv.org/abs/physics/9912048