Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Armengol, Federico G. López"'
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:
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:
Zubieta, Ezequiel, Missel, Ryan, Fiscella, Valentina Sosa, Lousto, Carlos O., del Palacio, Santiago, Armengol, Federico G. López, García, Federico, Combi, Jorge A., Wang, Linwei, Combi, Luciano, Gancio, Guillermo, Negrelli, Carolina, Gutiérrez, Eduardo M.
We report here on the first results of a systematic monitoring of southern glitching pulsars at the Argentine Institute of Radioastronomy that started in the year 2019. We detected a major glitch in the Vela pulsar (PSR J0835$-$4510) and two small-gl
Externí odkaz:
http://arxiv.org/abs/2210.03770
Autor:
Werneck, Leonardo R., Etienne, Zachariah B., Murguia-Berthier, Ariadna, Haas, Roland, Cipolletta, Federico, Noble, Scott C., Ennoggi, Lorenzo, Armengol, Federico G. Lopez, Giacomazzo, Bruno, Assumpção, Thiago, Faber, Joshua, Gupte, Tanmayee, Kelly, Bernard J., Krolik, Julian H.
Publikováno v:
Phys. Rev. D 107, 044037 (2023)
We have added support for realistic, microphysical, finite-temperature equations of state (EOS) and neutrino physics via a leakage scheme to IllinoisGRMHD, an open-source GRMHD code for dynamical spacetimes in the Einstein Toolkit. These new features
Externí odkaz:
http://arxiv.org/abs/2208.14487
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:
Lousto, Carlos O., Missel, Ryan, Prajapati, Harsh, Fiscella, Valentina Sosa, Armengol, Federico G. López, Gyawali, Prashnna Kumar, Wang, Linwei, Cahill, Nathan, Combi, Luciano, del Palacio, Santiago, Combi, Jorge A., Gancio, Guillermo, García, Federico, Gutiérrez, Eduardo M., Hauscarriaga, Fernando
We study individual pulses of Vela (PSR\ B0833-45\,/\,J0835-4510) from daily observations of over three hours (around 120,000 pulses per observation), performed simultaneously with the two radio telescopes at the Argentine Institute of Radioastronomy
Externí odkaz:
http://arxiv.org/abs/2108.13462
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