no code implementations • 23 Sep 2018 • Hector Olivares, Ziri Younsi, Christian M. Fromm, Mariafelicia De Laurentis, Oliver Porth, Yosuke Mizuno, Heino Falcke, Michael Kramer, Luciano Rezzolla
We find that the absence of an event horizon in a boson star leads to important differences in the dynamics of the accretion and results in both the formation of a small torus in the interior of the boson star and in the absence of an evacuated high-magnetization funnel in the polar regions.
General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
no code implementations • 16 Apr 2018 • Yosuke Mizuno, Ziri Younsi, Christian M. Fromm, Oliver Porth, Mariafelicia De Laurentis, Hector Olivares, Heino Falcke, Michael Kramer, Luciano Rezzolla
Our Galactic Center, Sagittarius A* (Sgr A*), is believed to harbour a supermassive black hole (BH), as suggested by observations tracking individual orbiting stars.
Astrophysics of Galaxies High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology
3 code implementations • 9 Jan 2016 • Hung-Yi Pu, Kiyun Yun, Ziri Younsi, Suk-Jin Yoon
General-relativistic radiative transfer (GRRT) calculations coupled with the calculation of geodesics in the Kerr spacetime are an essential tool for determining the images, spectra and light curves from matter in the vicinity of black holes.
High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics
