Search Results - "Ott, Christian D"

r-process Nucleosynthesis from Three-dimensional Magnetorotational Core-collapse Supernovae by Mösta, Philipp, Roberts, Luke F., Halevi, Goni, Ott, Christian D., Lippuner, Jonas, Haas, Roland, Schnetter, Erik

“…We investigate r-process nucleosynthesis in 3D general-relativistic magnetohydrodynamic simulations of rapidly rotating strongly magnetized core collapse. The…”
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GENERAL-RELATIVISTIC THREE-DIMENSIONAL MULTI-GROUP NEUTRINO RADIATION-HYDRODYNAMICS SIMULATIONS OF CORE-COLLAPSE SUPERNOVAE by Roberts, Luke F., Ott, Christian D., Haas, Roland, O'Connor, Evan P., Diener, Peter, Schnetter, Erik

“…ABSTRACT We report on a set of long-term general-relativistic three-dimensional (3D) multi-group (energy-dependent) neutrino radiation-hydrodynamics…”
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NUMERICAL MODELING OF THE EARLY LIGHT CURVES OF TYPE IIP SUPERNOVAE by Morozova, Viktoriya, Piro, Anthony L., Renzo, Mathieu, Ott, Christian D.

“…ABSTRACT The early rise of Type IIP supernovae (SN IIP) provides important information for constraining the properties of their progenitors. This can, in turn,…”
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A Detailed Comparison of Multidimensional Boltzmann Neutrino Transport Methods in Core-collapse Supernovae by 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…”
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NEUTRINO-DRIVEN CONVECTION IN CORE-COLLAPSE SUPERNOVAE: HIGH-RESOLUTION SIMULATIONS by Radice, David, Ott, Christian D., Abdikamalov, Ernazar, Couch, Sean M., Haas, Roland, Schnetter, Erik

“…ABSTRACT We present results from high-resolution semiglobal simulations of neutrino-driven convection in core-collapse supernovae. We employ an idealized setup…”
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A Model for Gravitational Wave Emission from Neutrino-Driven Core-Collapse Supernovae by Murphy, Jeremiah W, Ott, Christian D, Burrows, Adam

“…Using a suite of progenitor models, neutrino luminosities, and two-dimensional simulations, we investigate the matter gravitational wave (GW) emission from…”
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The influence of neutrinos on r-process nucleosynthesis in the ejecta of black hole–neutron star mergers by Roberts, Luke F, Lippuner, Jonas, Duez, Matthew D, Faber, Joshua A, Foucart, Francois, Lombardi, James C, Ning, Sandra, Ott, Christian D, Ponce, Marcelo

“…During the merger of a black hole and a neutron star, baryonic mass can become unbound from the system. Because the ejected material is extremely neutron-rich,…”
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Black-hole–neutron-star mergers at realistic mass ratios: Equation of state and spin orientation effects by Foucart, Francois, Deaton, M. Brett, Duez, Matthew D., Kidder, Lawrence E., MacDonald, Ilana, Ott, Christian D., Pfeiffer, Harald P., Scheel, Mark A., Szilagyi, Bela, Teukolsky, Saul A.

“…Black-hole-neutron-star mergers resulting in the disruption of the neutron star and the formation of an accretion disk and/or the ejection of unbound material…”
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Two-Dimensional Multiangle, Multigroup Neutrino Radiation-Hydrodynamic Simulations of Postbounce Supernova Cores by Ott, Christian D, Burrows, Adam, Dessart, Luc, Livne, Eli

“…We perform axisymmetric (2D) multiangle, multigroup neutrino radiation- hydrodynamic calculations of the postbounce phase of core-collapse supernovae using a…”
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Gravitational Waves from Binary Black Hole Mergers inside Stars by Fedrow, Joseph M, Ott, Christian D, Sperhake, Ulrich, Blackman, Jonathan, Haas, Roland, Reisswig, Christian, De Felice, Antonio

“…We present results from a controlled numerical experiment investigating the effect of stellar density gas on the coalescence of binary black holes (BBHs) and…”
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NEUTRINO-DRIVEN TURBULENT CONVECTION AND STANDING ACCRETION SHOCK INSTABILITY IN THREE-DIMENSIONAL CORE-COLLAPSE SUPERNOVAE by Abdikamalov, Ernazar, Ott, Christian D., Radice, David, Roberts, Luke F., Haas, Roland, Reisswig, Christian, Mösta, Philipp, Klion, Hannah, Schnetter, Erik

“…ABSTRACT We conduct a series of numerical experiments into the nature of three-dimensional (3D) hydrodynamics in the postbounce stalled-shock phase of…”
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A new spherical harmonics scheme for multi-dimensional radiation transport I. Static matter configurations by Radice, David, Abdikamalov, Ernazar, Rezzolla, Luciano, Ott, Christian D.

“…Recent work by McClarren and Hauck (2010) [31] suggests that the filtered spherical harmonics method represents an efficient, robust, and accurate method for…”
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A NEW MONTE CARLO METHOD FOR TIME-DEPENDENT NEUTRINO RADIATION TRANSPORT by Abdikamalov, Ernazar, Burrows, Adam, Ott, Christian D, Loffler, Frank, O'Connor, Evan, Dolence, Joshua C, Schnetter, Erik

“…Monte Carlo approaches to radiation transport have several attractive properties such as simplicity of implementation, high accuracy, and good parallel…”
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Multivariate regression analysis of gravitational waves from rotating core collapse by Engels, William J., Frey, Raymond, Ott, Christian D.

“…We present a new multivariate regression model for analysis and parameter estimation of gravitational waves observed from well but not perfectly modeled…”
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Black Hole Formation in Failing Core-Collapse Supernovae by O'Connor, Evan, Ott, Christian D

“…We present results of a systematic study of failing core-collapse supernovae and the formation of stellar-mass black holes (BHs). Using our open-source…”
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A new mechanism for gravitational-wave emission in core-collapse supernovae by Ott, Christian D, Burrows, Adam, Dessart, Luc, Livne, Eli

“…We present a new theory for the gravitational-wave signatures of core-collapse supernovae. Previous studies identified axisymmetric rotating core collapse,…”
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Dynamical mass ejection from binary neutron star mergers by Radice, David, Galeazzi, Filippo, Lippuner, Jonas, Roberts, Luke F., Ott, Christian D., Rezzolla, Luciano

“…We present fully general-relativistic simulations of binary neutron star mergers with a temperature and composition dependent nuclear equation of state. We…”
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Maximum Entropy for Gravitational Wave Data Analysis: Inferring the Physical Parameters of Core-Collapse Supernovae by Summerscales, T. Z, Burrows, Adam, Finn, Lee Samuel, Ott, Christian D

“…The gravitational wave signal arising from the collapsing iron core of a Type II supernova progenitor star carries with it the imprint of the progenitor's…”
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THE PROGENITOR DEPENDENCE OF THE PRE-EXPLOSION NEUTRINO EMISSION IN CORE-COLLAPSE SUPERNOVAE by O'Connor, Evan, Ott, Christian D

“…We perform spherically symmetric general-relativistic simulations of core collapse and the postbounce pre-explosion phase in 32 presupemova stellar models of…”
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THE ROLE OF TURBULENCE IN NEUTRINO-DRIVEN CORE-COLLAPSE SUPERNOVA EXPLOSIONS by Couch, Sean M, Ott, Christian D

“…The neutrino-heated "gain layer" immediately behind the stalled shock in a core-collapse supernova is unstable to high-Reynolds-number turbulent convection. We…”
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