Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Campanelli, Manuela"'
Autor:
Porter, Kaitlyn, Noble, Scott C., Gutierrez, Eduardo M., Pelle, Joaquin, Campanelli, Manuela, Schnittman, Jeremy, Kelly, Bernard J.
Supermassive black holes (SMBHs) are thought to be located at the centers of most galactic nuclei. When galaxies merge they form supermassive black hole binary (SMBHB) systems and these central SMBHs will also merge at later times, producing gravitat
Externí odkaz:
http://arxiv.org/abs/2407.04089
Autor:
Kalinani, Jay V., Ji, Liwei, Ennoggi, Lorenzo, Armengol, Federico G. Lopez, Sanches, Lucas Timotheo, Tsao, Bing-Jyun, Brandt, Steven R, Campanelli, Manuela, Ciolfi, Riccardo, Giacomazzo, Bruno, Haas, Roland, Schnetter, Erik, Zlochower, Yosef
We present AsterX, a novel open-source, GPU-accelerated, fully general relativistic magnetohydrodynamic (GRMHD) code designed for dynamic spacetimes in 3D Cartesian coordinates, and tailored for exascale computing. We utilize block-structured adaptiv
Externí odkaz:
http://arxiv.org/abs/2406.11669
Autor:
Combi, Luciano, Yang, Huan, Gutierrez, Eduardo, Noble, Scott C., Romero, Gustavo E., Campanelli, Manuela
We present the first dynamical model of plasma accretion onto traversable wormholes by performing General Relativistic magneto-hydrodynamical (GRMHD) simulations of the flow on both sides of the wormhole. We evolve the ideal MHD equations on a wormho
Externí odkaz:
http://arxiv.org/abs/2405.06900
Autor:
Avara, Mark J., Krolik, Julian H., Campanelli, Manuela, Noble, Scott C., Bowen, Dennis, Ryu, Taeho
While supermassive binary black holes inspiral toward merger they may also experience significant accretion of matter from a surrounding disk. We study the dynamics of this system, simultaneously describing the evolving spacetime and magnetized plasm
Externí odkaz:
http://arxiv.org/abs/2305.18538
Autor:
Ji, Liwei, Mewes, Vassilios, Zlochower, Yosef, Ennoggi, Lorenzo, Armengol, Federico G. Lopez, Campanelli, Manuela, Cipolletta, Federico, Etienne, Zachariah B.
Numerical simulations of merging compact objects and their remnants form the theoretical foundation for gravitational wave and multi-messenger astronomy. While Cartesian-coordinate-based adaptive mesh refinement is commonly used for simulations, sphe
Externí odkaz:
http://arxiv.org/abs/2305.01537
Autor:
Armengol, Federico G. Lopez, Etienne, Zachariah B., Noble, Scott C., Kelly, Bernard J., Werneck, Leonardo R., Drachler, Brendan, Campanelli, Manuela, Cipolletta, Federico, Zlochower, Yosef, Murguia-Berthier, Ariadna, Ennoggi, Lorenzo, Avara, Mark, Ciolfi, Riccardo, Faber, Joshua, Fiacco, Grace, Giacomazzo, Bruno, Gupte, Tanmayee, Ha, Trung, Krolik, Julian H., Mewes, Vassilios, O'Shaughnessy, Richard, Rueda-Becerril, Jesús M., Schnittman, Jeremy
Publikováno v:
Phys. Rev. D 106, 083015 (2022)
We perform binary neutron star (BNS) merger simulations in full dynamical general relativity with IllinoisGRMHD, on a Cartesian grid with adaptive-mesh refinement. After the remnant black hole has become nearly stationary, the evolution of the surrou
Externí odkaz:
http://arxiv.org/abs/2112.09817
Autor:
Gutiérrez, Eduardo M., Combi, Luciano, Noble, Scott C., Campanelli, Manuela, Krolik, Julian H., Armengol, Federico G. López, García, Federico
Publikováno v:
The Astrophysical Journal, Volume 928, Issue 2, id.137, 15 pp. (2022)
We present fully relativistic predictions for the electromagnetic emission produced by accretion disks surrounding spinning and nonspinning supermassive binary black holes on the verge of merging. We use the code Bothros to post-process data from 3D
Externí odkaz:
http://arxiv.org/abs/2112.09773
Autor:
Combi, Luciano, Armengol, Federico G. Lopez, Campanelli, Manuela, Noble, Scott C., Avara, Mark, Krolik, Julian H., Bowen, Dennis
We perform a full 3D general relativistic magnetohydrodynamical (GRMHD) simulation of an equal-mass, spinning, binary black hole approaching merger, surrounded by a circumbinary disk and with mini-disks around each black hole. For this purpose, we ev
Externí odkaz:
http://arxiv.org/abs/2109.01307
Autor:
Murguia-Berthier, Ariadna, Noble, Scott C., Roberts, Luke F., Ramirez-Ruiz, Enrico, Werneck, Leonardo R., Kolacki, Michael, Etienne, Zachariah B., Avara, Mark, Campanelli, Manuela, Ciolfi, Riccardo, Cipolletta, Federico, Drachler, Brendan, Ennoggi, Lorenzo, Faber, Joshua, Fiacco, Grace, Giacomazzo, Bruno, Gupte, Tanmayee, Ha, Trung, Kelly, Bernard J., Krolik, Julian H., Armengol, Federico G. Lopez, Margalit, Ben, Moon, Tim, O'Shaughnessy, Richard, Rueda-Becerril, Jesús M., Schnittman, Jeremy, Zenati, Yossef, Zlochower, Yosef
The first binary neutron star merger has already been detected in gravitational waves. The signal was accompanied by an electromagnetic counterpart including a kilonova component powered by the decay of radioactive nuclei, as well as a short $\gamma$
Externí odkaz:
http://arxiv.org/abs/2106.05356
Autor:
Combi, Luciano, Armengol, Federico G. Lopez, Campanelli, Manuela, Ireland, Brennan, Noble, Scott C., Nakano, Hiroyuki, Bowen, Dennis
Publikováno v:
Phys. Rev. D 104, 044041 (2021)
We construct an approximate metric that represents the spacetime of spinning binary black holes (BBH) approaching merger. We build the metric as an analytical superposition of two Kerr metrics in harmonic coordinates, where we transform each black ho
Externí odkaz:
http://arxiv.org/abs/2103.15707