22 citations · 76 across the 18 of their papers we have counts for
18 papers
MAXI J1820+070: A rapidly spinning black hole with a small disk truncation in the soft state and warm corona layers
Th. V. Papavasileiou, T. S. Kosmas, O. Kosmas +1
Our study seeks to address the debate over the spin of MAXI J1820+070 through broadband spectral modeling of NICER/NuSTAR observations obtained during the soft state. We further co…
A simplified approach for reproducing fully relativistic spectra in X-ray binary systems: Application to Cygnus X-1
Th. V. Papavasileiou, O. Kosmas, T. S. Kosmas
General relativistic effects are strong near the black hole of an X-ray binary and significantly impact the total energy released at the innermost accretion disk's region. Our goal…
Modeling Simulated Emissions from Galactic Binary Stars
Theodora V. Papavasileiou, Odysseas T. Kosmas, Ioannis Sinatkas
Relativistic plasma flows from the jets of black hole binary systems consist the environment of multiple particle production and radiation emission including neutrinos and gamma-ra…
Relativistic Magnetized Astrophysical Plasma Outflows in Black-Hole Microquasars
Theodora Papavasileiou, Odysseas Kosmas, Ioannis Sinatkas
Recently, microquasar jets have aroused the interest of many researchers focusing on the astrophysical plasma outflows and various jet ejections. In this work, we concentrate on th…
A Geometric Formulation of Linear Elasticity Based on Discrete Exterior Calculus
Pieter D. Boom, Odysseas Kosmas, Lee Margetts +1
A direct formulation of linear elasticity of cell complexes based on discrete exterior calculus is presented. The primary unknown are displacements, represented by primal vector-va…
Parallelized Discrete Exterior Calculus for Three-Dimensional Elliptic Problems
Pieter D. Boom, Ashley Seepujak, Odysseas Kosmas +2
A formulation of elliptic boundary value problems is used to develop the first discrete exterior calculus (DEC) library for massively parallel computations with 3D domains. This ca…