Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Mewes, Vassilios"'
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:
Armengol, Federico G. Lopez, Combi, Luciano, Campanelli, Manuela, Noble, Scott C., Krolik, Julian H., Bowen, Dennis B., Avara, Mark J., Mewes, Vassilios, Nakano, Hiroyuki
Supermassive black hole binaries are likely to accrete interstellar gas through a circumbinary disk. Shortly before merger, the inner portions of this circumbinary disk are subject to general relativistic effects. To study this regime, we approximate
Externí odkaz:
http://arxiv.org/abs/2102.00243
Autor:
Mewes, Vassilios, Zlochower, Yosef, Campanelli, Manuela, Baumgarte, Thomas W., Etienne, Zachariah B., Armengol, Federico G. Lopez, Cipolletta, Federico
Publikováno v:
Phys. Rev. D 101, 104007 (2020)
We present SphericalNR, a new framework for the publicly available Einstein Toolkit that numerically solves the Einstein field equations coupled to the equations of general relativistic magnetohydrodynamics (GRMHD) in a 3+1 split of spacetime in sphe
Externí odkaz:
http://arxiv.org/abs/2002.06225
Autor:
del Rio, Adrian, Sanchis-Gual, Nicolas, Mewes, Vassilios, Agullo, Ivan, Font, Jose A., Navarro-Salas, Jose
Publikováno v:
Phys. Rev. Lett 124, 211301 (2020)
This work establishes a relation between chiral anomalies in curved spacetimes and the radiative content of the gravitational field. In particular, we show that a flux of circularly polarized gravitational waves triggers the spontaneous creation of p
Externí odkaz:
http://arxiv.org/abs/2002.01593
Autor:
Bowen, Dennis B., Avara, Mark, Mewes, Vassilios, Zlochower, Yosef, Noble, Scott C., Campanelli, Manuela, Shiokawa, Hotaka, Cheng, Roseanne M., Krolik, Julian H.
We present an extension of the PatchworkMHD code [1], itself an MHD-capable extension of the Patchwork code [2], for which several algorithms presented here were co-developed. Its purpose is to create a multipatch scheme compatible with numerical sim
Externí odkaz:
http://arxiv.org/abs/2002.00088
Autor:
Bowen, Dennis B., Mewes, Vassilios, Noble, Scott C., Avara, Mark, Campanelli, Manuela, Krolik, Julian H.
In this paper we continue the first ever study of magnetized mini-disks coupled to circumbinary accretion in a supermassive binary black hole (SMBBH) approaching merger reported in Bowen et al. 2018. We extend this simulation from 3 to 12 binary orbi
Externí odkaz:
http://arxiv.org/abs/1904.12048
Autor:
d'Ascoli, Stéphane, Noble, Scott C., Bowen, Dennis B., Campanelli, Manuela, Krolik, Julian H., Mewes, Vassilios
We present the first fully relativistic prediction of the electromagnetic emission from the surrounding gas of a supermassive binary black hole system approaching merger. Using a ray-tracing code to post-process data from a general relativistic 3-d M
Externí odkaz:
http://arxiv.org/abs/1806.05697
Autor:
Mewes, Vassilios, Zlochower, Yosef, Campanelli, Manuela, Ruchlin, Ian, Etienne, Zachariah B., Baumgarte, Thomas W.
Publikováno v:
Phys. Rev. D 97, 084059 (2018)
Numerical relativity codes that do not make assumptions on spatial symmetries most commonly adopt Cartesian coordinates. While these coordinates have many attractive features, spherical coordinates are much better suited to take advantage of approxim
Externí odkaz:
http://arxiv.org/abs/1802.09625
Autor:
Bowen, Dennis B., Mewes, Vassilios, Campanelli, Manuela, Noble, Scott C., Krolik, Julian H., Zilhao, Miguel
We present the first magnetohydrodynamic simulation in which a circumbinary disk around a relativistic binary black hole feeds mass to individual accretion disks ("mini-disks") around each black hole. Mass flow through the accretion streams linking t
Externí odkaz:
http://arxiv.org/abs/1712.05451