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7 papers · 1 filter
A Carrington-like geomagnetic storm observed in the 21st century
C. Cid, E. Saiz, A. Guerrero +2
In September 1859 the Colaba observatory measured the most extreme geomagnetic disturbance ever recorded at low latitudes related to solar activity: the Carrington storm. This pape…
Energy reconstruction of hadron-initiated showers of ultra-high energy cosmic rays
G. Ros, G. A. Medina-Tanco, A. D. Supanitsky +2
The current methods to determine the primary energy of ultra-high energy cosmic rays (UHECRs) are different when dealing with hadron or photon primaries. The current experiments co…
Strongly regular multi-level solutions of singularly perturbed linear partial differential equations
Alberto Lastra, Stéphane Malek, Javier Sanz
We study the asymptotic behavior of the solutions related to a family of singularly perturbed partial differential equations in the complex domain. The analytic solutions are asymp…
A new method to compute the singularities of offsets to rational plane curves
Juan Gerardo Alcázar, Jorge Caravantes, Gema M. Diaz-Toca
Given a planar curve defined by means of a real rational parametrization, we prove that the affine values of the parameter generating the real singularities of the offset are real…
On parametric multisummable formal solutions to some nonlinear initial value Cauchy problems
Alberto Lastra, Stephane Malek
We study a nonlinear initial value Cauchy problem depending upon a complex perturbation parameter whose coefficients depend holomorphically on near the origin in $\math…
The Herschel Comprehensive (U)LIRG Emission Survey (HerCULES): CO Ladders, fine structure lines, and neutral gas cooling
M. J. F. Rosenberg, P. P. van der Werf, S. Aalto +27
(Ultra) Luminous Infrared Galaxies ((U)LIRGs) are objects characterized by their extreme infrared (8-1000 m) luminosities (L and L…