Zobrazeno 1 - 10
of 245
pro vyhledávání: '"Ott, Christian D"'
Autor:
Rosca-Mead, Roxana, Sperhake, Ulrich, Moore, Christopher J., Agathos, Michalis, Gerosa, Davide, Ott, Christian D.
Publikováno v:
Phys. Rev. D 102, 044010 (2020)
This paper provides an extended exploration of the inverse-chirp gravitational-wave signals from stellar collapse in massive scalar-tensor gravity reported in [Phys. Rev. Lett. {\bf 119}, 201103]. We systematically explore the parameter space that ch
Externí odkaz:
http://arxiv.org/abs/2005.09728
Autor:
Mösta, Philipp, Roberts, Luke F., Halevi, Goni, Ott, Christian D., Lippuner, Jonas, Haas, Roland, Schnetter, Erik
We investigate r-process nucleosynthesis in three-dimensional (3D) general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. The simulations include a microphysical finite-temperature equation of stat
Externí odkaz:
http://arxiv.org/abs/1712.09370
Autor:
Nouri, Fatemeh Hossein, Duez, Matthew D., Foucart, Francois, Deaton, M. Brett, Haas, Roland, Haddadi, Milad, Kidder, Lawrence E., Ott, Christian D., Pfeiffer, Harald P., Scheel, Mark A., Szilagyi, Bela
Publikováno v:
Phys. Rev. D 97, 083014 (2018)
Black hole-torus systems from compact binary mergers are possible engines for gamma-ray bursts (GRBs). During the early evolution of the post-merger remnant, the state of the torus is determined by a combination of neutrino cooling and magnetically-d
Externí odkaz:
http://arxiv.org/abs/1710.07423
Autor:
Radice, David, Abdikamalov, Ernazar, Ott, Christian D., Moesta, Philipp, Couch, Sean M., Roberts, Luke F.
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 45 (2018) 053003
Multidimensional simulations show that non-radial, turbulent, fluid motion is a fundamental component of the core-collapse supernova (CCSN) explosion mechanism. Neutrino-driven convection, the standing accretion shock instability, and relic-perturbat
Externí odkaz:
http://arxiv.org/abs/1710.01282
Recent studies suggest that globular clusters (GCs) may retain a substantial population of stellar-mass black holes (BHs), in contrast to the long-held belief of a few to zero BHs. We model the population of BH low-mass X-ray binaries (BH-LMXBs), an
Externí odkaz:
http://arxiv.org/abs/1708.05915
Autor:
Sperhake, Ulrich, Moore, Christopher J., Rosca, Roxana, Agathos, Michalis, Gerosa, Davide, Ott, Christian D.
Publikováno v:
Phys. Rev. Lett. 119, 201103 (2017)
This letter considers stellar core collapse in massive scalar--tensor theories of gravity. The presence of a mass term for the scalar field allows for dramatic increases in the radiated gravitational wave signal. There are several potential smoking g
Externí odkaz:
http://arxiv.org/abs/1708.03651
Publikováno v:
Phys. Rev. C 96, 065802 (2017)
The equation of state (EOS) of dense matter is an essential ingredient for numerical simulations of core-collapse supernovae and neutron star mergers. The properties of matter near and above nuclear saturation density are uncertain, which translates
Externí odkaz:
http://arxiv.org/abs/1707.01527
Autor:
Richers, Sherwood, Nagakura, Hiroki, Ott, Christian D., Dolence, Joshua, Sumiyoshi, Kohsuke, Yamada, Shoichi
The mechanism driving core-collapse supernovae is sensitive to the interplay between matter and neutrino radiation. However, neutrino radiation transport is very difficult to simulate, and several radiation transport methods of varying levels of appr
Externí odkaz:
http://arxiv.org/abs/1706.06187
A Numerical Relativity Waveform Surrogate Model for Generically Precessing Binary Black Hole Mergers
Autor:
Blackman, Jonathan, Field, Scott E., Scheel, Mark A., Galley, Chad R., Ott, Christian D., Boyle, Michael, Kidder, Lawrence E., Pfeiffer, Harald P., Szilágyi, Béla
Publikováno v:
Phys. Rev. D 96, 024058 (2017)
A generic, non-eccentric binary black hole (BBH) system emits gravitational waves (GWs) that are completely described by 7 intrinsic parameters: the black hole spin vectors and the ratio of their masses. Simulating a BBH coalescence by solving Einste
Externí odkaz:
http://arxiv.org/abs/1705.07089
Publikováno v:
A&A 603, A118 (2017)
Mass loss is a key uncertainty in the evolution of massive stars. Stellar evolution calculations must employ parametric algorithms for mass loss, and usually only include stellar winds. We carry out a parameter study of the effects of wind mass loss
Externí odkaz:
http://arxiv.org/abs/1703.09705