3 papers
math-ph2020
Trapped modes and resonances for thin horizontal cylinders in a two-layer fluid
P. Zhevandrov, A. Merzon, M. I. Romero Rodríguez +1
Exact solutions of the linear water-wave problem describing oblique waves over a submerged horizontal cylinder of small (but otherwise fairly arbitrary) cross-section in a two-laye…
math-ph2019
Time-dependent approach to the uniqueness of the Sommerfeld solution of the diffraction problem by a half-plane
A. Merzon, P. Zhevandrov, J. E. De la Paz Méndez +1
We consider the Sommerfeld problem of diffraction by an opaque half-plane with a real wavenumber interpreting it as the limiting case, as time tends to infinity, of the correspondi…
astro-ph.SR2018
Tycho's supernova: the view from {\it Gaia}
Pilar Ruiz-Lapuente, Jonay I. González Hernández, Roger Mor +6
SN 1572 (Tycho Brahe's supernova) clearly belongs to the Ia (thermonuclear) type. It was produced by the explosion of a white dwarf in a binary system. Its remnant has been the fir…