Zobrazeno 1 - 10
of 522
pro vyhledávání: '"Mezzacappa, P"'
Autor:
Murphy, R. Daniel, Casallas-Lagos, Alejandro, Mezzacappa, Anthony, Zanolin, Michele, Landfield, Ryan E., Lentz, Eric J., Marronetti, Pedro, Antelis, Javier M., Moreno, Claudia
We present an analysis of gravitational wave (GW) predictions from five two-dimensional Core Collapse Supernova (CCSN) simulations that varied only in the Equation of State (EOS) implemented. The GW signals from these simulations are used to produce
Externí odkaz:
http://arxiv.org/abs/2406.01784
Autor:
Richardson, Colter J., Andresen, Haakon, Mezzacappa, Anthony, Zanolin, Michele, Benjamin, Michael G., Marronetti, Pedro, Lentz, Eric J., Szczepanczyk, Marek J.
We present an approach to detecting (linear) gravitational wave memory in a Galactic core-collapse supernova using current interferometers. Gravitational wave memory is an important prediction of general relativity that has yet to be confirmed. Our a
Externí odkaz:
http://arxiv.org/abs/2404.02131
Autor:
Mezzacappa, Anthony, Zanolin, Michele
Three-dimensional modeling has reached a level of maturity to provide detailed predictions of the gravitational wave emission in neutrino-driven core collapse supernovae. We review the status of these modeling efforts, current predictions for core co
Externí odkaz:
http://arxiv.org/abs/2401.11635
We consider particle systems described by moments of a phase-space density and propose a realizability-preserving numerical method to evolve a spectral two-moment model for particles interacting with a background fluid moving with nonrelativistic vel
Externí odkaz:
http://arxiv.org/abs/2309.04429
Autor:
Dunham, Samuel J., Endeve, Eirik, Mezzacappa, Anthony, Blondin, John M., Buffaloe, Jesse, Holley-Bockelmann, Kelly
Publikováno v:
Samuel J. Dunham et al 2024 ApJ 964 38
We present numerical results from a parameter study of the standing accretion shock instability (SASI), investigating the impact of general relativity (GR) on the dynamics. Using GR hydrodynamics with GR gravity, and nonrelativistic (NR) hydrodynamic
Externí odkaz:
http://arxiv.org/abs/2307.10904
Autor:
Lagos, Alejandro Casallas, Antelis, Javier M., Moreno, Claudia, Zanolin, Michele, Mezzacappa, Anthony, Szczepańczyk, Marek J.
We present a methodology based on the implementation of a fully connected neural network to estimate the gravitational wave (GW) temporal evolution of the gmode fundamental resonant frequency for a Core Collapse Supernova (CCSN). To perform the estim
Externí odkaz:
http://arxiv.org/abs/2304.11498
Autor:
Bruenn, Stephen W., Sieverding, Andre, Lentz, Eric J., Sukhbold, Tuguldur, Hix, W. Raphael, Huk, Leah N., Harris, J. Austin, Messer, O. E. Bronson, Mezzacappa, Anthony
Publikováno v:
ApJ, 2023, 497, 35
We compare the core-collapse evolution of a pair of 15.8 $M_\odot$ stars with significantly different internal structures, a consequence of bimodal variability exhibited by massive stars during their late evolutionary stages. The 15.78 and 15.79 $M_\
Externí odkaz:
http://arxiv.org/abs/2211.12675
Autor:
Dubey, Anshu, Weide, Klaus, O'Neal, Jared, Dhruv, Akash, Couch, Sean, Harris, J. Austin, Klosterman, Tom, Jain, Rajeev, Rudi, Johann, Messer, Bronson, Pajkos, Michael, Carlson, Jared, Chu, Ran, Wahib, Mohamed, Chawdhary, Saurabh, Ricker, Paul M., Lee, Dongwook, Antypas, Katie, Riley, Katherine M., Daley, Christopher, Ganapathy, Murali, Timmes, Francis X., Townsley, Dean M., Vanella, Marcos, Bachan, John, Rich, Paul, Kumar, Shravan, Endeve, Eirik, Hix, W. Raphael, Mezzacappa, Anthony, Papatheodore, Thomas
Publikováno v:
SoftwareX, Volume 19, 2022, 101168,ISSN 2352-7110
Flash-X is a highly composable multiphysics software system that can be used to simulate physical phenomena in several scientific domains. It derives some of its solvers from FLASH, which was first released in 2000. Flash-X has a new framework that r
Externí odkaz:
http://arxiv.org/abs/2208.11630
Autor:
Mezzacappa, Anthony, Marronetti, Pedro, Landfield, Ryan E., Lentz, Eric J., Hix, W. Raphael, Harris, J. Austin, Bruenn, Stephen W., Blondin, John M., Messer, O. E. Bronson, Casanova, Jordi, Kronzer, Luke L.
We present gravitational wave emission predictions based on three core collapse supernova simulations corresponding to three different progenitor masses. The masses span a large range, between 9.6 and 25 Solar masses, are all initially non-rotating,
Externí odkaz:
http://arxiv.org/abs/2208.10643
Autor:
Mezzacappa, Anthony
Motivated by their role as the direct or indirect source of many of the elements in the Universe, numerical modeling of core collapse supernovae began more than five decades ago. Progress toward ascertaining the explosion mechanism(s) has been realiz
Externí odkaz:
http://arxiv.org/abs/2205.13438