Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Etienne, Zachariah B"'
Autor:
Duez, Matthew D., Cadenhead, Courtney L., Etienne, Zachariah B., Kelly, Bernard, Werneck, Leonardo R.
Two-dimensional models assuming axisymmetry are an economical way to explore the long-term evolution of black hole accretion disks, but they are only realistic if the feedback of the nonaxisymmetric turbulence on the mean momentum and magnetic fields
Externí odkaz:
http://arxiv.org/abs/2409.02899
Autor:
Etienne, Zachariah B.
Publikováno v:
Phys. Rev. D 110, 064045 (2024)
To fully unlock the scientific potential of upcoming gravitational wave (GW) interferometers, numerical relativity (NR) simulation accuracy will need to be greatly enhanced. We present three infrastructure-agnostic improvements to the moving-puncture
Externí odkaz:
http://arxiv.org/abs/2404.01137
Autor:
Werneck, Leonardo R., Jessup, Cody, Brandenberger, Austin, Knowles, Tyler, Lewandowski, Charles W., Nolan, Megan, Sible, Ken, Etienne, Zachariah B., D'Urso, Brian
Publikováno v:
Rev. Sci. Instrum. 95, 073708 (2024)
Accurately measuring the translations of objects between images is essential in many fields, including biology, medicine, chemistry, and physics. One important application is tracking one or more particles by measuring their apparent displacements in
Externí odkaz:
http://arxiv.org/abs/2310.08770
Reproducibility of results is a cornerstone of the scientific method. Scientific computing encounters two challenges when aiming for this goal. Firstly, reproducibility should not depend on details of the runtime environment, such as the compiler ver
Externí odkaz:
http://arxiv.org/abs/2307.01343
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:
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:
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
While each computer algebra system (CAS) contains its own unique syntax for inputting mathematical expressions, LaTeX is perhaps the most widespread language for typesetting mathematics. NRPyLaTeX (NL) enables direct LaTeX input of complex tensorial
Externí odkaz:
http://arxiv.org/abs/2111.05861
We introduce NRPyElliptic, an elliptic solver for numerical relativity (NR) built within the NRPy+ framework. As its first application, NRPyElliptic sets up conformally flat, binary black hole (BBH) puncture initial data (ID) on a single numerical do
Externí odkaz:
http://arxiv.org/abs/2111.02424