Zobrazeno 1 - 10
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pro vyhledávání: '"Krolik, Julian H"'
Black hole - neutron star $(BH/NS)$ binaries are of interest in many ways: they are intrinsically multi-messenger systems, highly transient, radiate gravitational waves detectable by LIGO, and may produce $\gamma$-ray bursts. Although it has long bee
Externí odkaz:
http://arxiv.org/abs/2410.05391
Previously we demonstrated that the magnetorotational instability (MRI) grows vigorously in eccentric disks, much as it does in circular disks, and we investigated the nonlinear development of the eccentric MRI without vertical gravity. Here we explo
Externí odkaz:
http://arxiv.org/abs/2312.06775
Autor:
Zenati, Yossef, Krolik, Julian H., Werneck, Leonardo R., Murguia-Berthier, Ariadna, Etienne, Zachariah B., Noble, Scott C., Piran, Tsvi
Many studies have found that neutron star mergers leave a fraction of the stars' mass in bound orbits surrounding the resulting massive neutron star or black hole. This mass is a site of $r-$ process nucleosynthesis and can generate a wind that contr
Externí odkaz:
http://arxiv.org/abs/2306.09464
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:
Krolik, Julian H., Linial, Itai
Quasi-Periodic Erupters (QPEs) are a remarkable class of objects exhibiting very large amplitude quasi-periodic X-ray flares. Although numerous dynamical models have been proposed to explain them, relatively little attention has been given to using t
Externí odkaz:
http://arxiv.org/abs/2209.02786
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:
Zenati, Yossef, Wang, Qinan, Bobrick, Alexey, DeMarchi, Lindsay, Glanz, Hila, Rozner, Mor, Rest, Armin, Metzger, Brian D., Margutti, Raffaella, Gomez, Sebastian, Smith, Nathan, Toonen, Silvia, Bright, Joe S., Norman, Colin, Foley, Ryan J., Gagliano, Alexander, Krolik, Julian H., Smartt, Stephen J., Villar, Ashley V., Narayan, Gautham, Fox, Ori, Auchettl, Katie, Brethauer, Daniel, Clocchiatti, Alejandro, Coelln, Sophie V., Coppejans, Deanne L., Dimitriadis, Georgios, Doroszmai, Andris, Drout, Maria, Jacobson-Galan, Wynn, Gao, Bore, Ridden-Harper, Ryan, Kilpatrick, Charles Donald, Laskar, Tanmoy, Matthews, David, Rest, Sofia, Smith, Ken W., Stauffer, Candice McKenzie, Stroh, Michael C., Strolger, Louis-Gregory, Terreran, Giacomo, Pierel, Justin D. R., Piro, Anthony L.
We present multi-band ATLAS photometry for SN 2019tsf, a stripped-envelope Type Ib supernova (SESN). The SN shows a triple-peaked light curve and a late (re-)brightening, making it unique among stripped-envelope systems. The re-brightening observatio
Externí odkaz:
http://arxiv.org/abs/2207.07146
Publikováno v:
ApJ, 933, 81 (2022)
The magnetorotational instability (MRI) has been extensively studied in circular magnetized disks, and its ability to drive accretion has been demonstrated in a multitude of scenarios. There are reasons to expect eccentric magnetized disks to also ex
Externí odkaz:
http://arxiv.org/abs/2201.03728
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