Search Results - "Timmes, F. X"

Modules for Experiments in Stellar Astrophysics (MESA): Time-dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure by Jermyn, Adam S., Bauer, Evan B., Schwab, Josiah, Farmer, R., Ball, Warrick H., Bellinger, Earl P., Dotter, Aaron, Joyce, Meridith, Marchant, Pablo, Mombarg, Joey S. G., Wolf, William M., Sunny Wong, Tin Long, Cinquegrana, Giulia C., Farrell, Eoin, Smolec, R., Thoul, Anne, Cantiello, Matteo, Herwig, Falk, Toloza, Odette, Bildsten, Lars, Townsend, Richard H. D., Timmes, F. X.

“…Abstract We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics ( MESA ). The new auto _ diff…”
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Presupernova Neutrinos: Directional Sensitivity and Prospects for Progenitor Identification by Mukhopadhyay, Mainak, Lunardini, Cecilia, Timmes, F. X., Zuber, Kai

“…We explore the potential of current and future liquid scintillator neutrino detectors of kt mass to localize a presupernova neutrino signal in the sky. In the…”
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THE LIGHT CURVE OF SN 1987A REVISITED: CONSTRAINING PRODUCTION MASSES OF RADIOACTIVE NUCLIDES by SEITENZAHL, IVO R, Timmes, F X, Magkotsios, Georgios

“…We revisit the evidence for the contribution of the long-lived radioactive nuclides super(44)Ti, super(55)Fe, super(56)Co, super(57)Co, and super(60)Co to the…”
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Seismic Signatures of the 12C(α, γ)16O Reaction Rate in White Dwarf Models with Overshooting by Chidester, Morgan T., Timmes, F. X., Farag, Ebraheem

“…We consider the combined effects that overshooting and the 12C(α, γ)16O reaction rate have on variable white dwarf (WD) stellar models. We find that…”
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Neutrinos from Beta Processes in a Presupernova: Probing the Isotopic Evolution of a Massive Star by Patton, Kelly M., Lunardini, Cecilia, Farmer, Robert J., Timmes, F. X.

“…We present a new calculation of the neutrino flux received at Earth from a massive star in the ∼24 hr of evolution prior to its explosion as a supernova…”
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REMNANTS OF BINARY WHITE DWARF MERGERS by RASKIN, Cody, SCANNAPIECO, Evan, FRYER, Chris, ROCKEFELLER, Gabriel, TIMMES, F. X

“…We carry out a comprehensive smooth particle hydrodynamics simulation survey of double-degenerate white dwarf binary mergers of varying mass combinations in…”
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On Stellar Evolution in a Neutrino Hertzsprung-Russell Diagram by Farag, Ebraheem, Timmes, F. X., Taylor, Morgan, Patton, Kelly M., Farmer, R.

“…We explore the evolution of a select grid of solar metallicity stellar models from their pre-main-sequence phase to near their final fates in a neutrino…”
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Photons from Neutrinos: The Gamma-Ray Echo of a Supernova Neutrino Burst by Lunardini, Cecilia, Loeffler, Joshua, Mukhopadhyay, Mainak, Hurley, Matthew J., Farag, Ebraheem, Timmes, F. X.

“…Abstract When a star undergoes core collapse, a vast amount of energy is released in a ∼10 s long burst of neutrinos of all species. Inverse beta decay in the…”
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PROPERTIES OF CARBON-OXYGEN WHITE DWARFS FROM MONTE CARLO STELLAR MODELS by Fields, C. E., Farmer, R., Petermann, I., Iliadis, C., Timmes, F. X.

“…ABSTRACT We investigate properties of carbon-oxygen white dwarfs with respect to the composite uncertainties in the reaction rates using the stellar evolution…”
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On Type Ia supernovae from the collisions of two white dwarfs by Raskin, Cody, Timmes, F. X., Scannapieco, Evan, Diehl, Steven, Fryer, Chris

“…We explore collisions between two white dwarfs as a pathway for making Type Ia supernovae (SNIa). White dwarf number densities in globular clusters allow…”
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Erratum: “On Stellar Evolution in a Neutrino Hertzsprung–Russell Diagram” (2020, ApJ, 893, 133) by Farag, Ebraheem, Timmes, F. X., Chidester, Morgan T., Patton, Kelly M., Farmer, R.

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Stellar Neutrino Emission across the Mass–Metallicity Plane by Farag, Ebraheem, Timmes, F. X., Chidester, Morgan T., Anandagoda, Samalka, Hartmann, Dieter H.

“…Abstract We explore neutrino emission from nonrotating, single-star models across six initial metallicities and 70 initial masses from the zero-age main…”
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BAYESIAN ESTIMATION OF THERMONUCLEAR REACTION RATES by Iliadis, C., Anderson, K. S., Coc, A., Timmes, F. X., Starrfield, S.

“…ABSTRACT The problem of estimating non-resonant astrophysical S-factors and thermonuclear reaction rates, based on measured nuclear cross sections, is of major…”
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CONVECTIVE PROPERTIES OF ROTATING TWO-DIMENSIONAL CORE-COLLAPSE SUPERNOVA PROGENITORS by Chatzopoulos, E., Couch, Sean M., Arnett, W. David, Timmes, F. X.

“…ABSTRACT We explore the effects of rotation on convective carbon, oxygen, and silicon shell burning during the late stages of evolution in a 20 M star. Using…”
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On the Structure, Magnetic Properties, and Infrared Spectra of Iron Pseudocarbynes in the Interstellar Medium by Tarakeshwar, Pilarisetty, Buseck, Peter R., Timmes, F. X.

“…Carbon chains, especially polyynes, are the building blocks of complex molecules such as polycyclic aromatic hydrocarbons and fullerenes, and polyynes are…”
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Observational Evidence for High Neutronization in Supernova Remnants: Implications for Type Ia Supernova Progenitors by Martínez-Rodríguez, Héctor, Badenes, Carles, Yamaguchi, Hiroya, Bravo, Eduardo, Timmes, F. X., Miles, Broxton J., Townsley, Dean M., Piro, Anthony L., Mori, Hideyuki, Andrews, Brett, Park, Sangwook

“…The physical process whereby a carbon-oxygen white dwarf explodes as a Type Ia supernova (SN Ia) remains highly uncertain. The degree of neutronization in SN…”
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An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models by Farag, Ebraheem, Fontes, Christopher J., Timmes, F. X., Bellinger, Earl P., Guzik, Joyce A., Bauer, Evan B., Wood, Suzannah R., Mussack, Katie, Hakel, Peter, Colgan, James, Kilcrease, David P., Sherrill, Manolo E., Raecke, Tryston C., Chidester, Morgan T.

“…Abstract We present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative…”
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On Variations in the Peak Luminosity of Type Ia Supernovae by Timmes, F. X, Brown, Edward F, Truran, J. W

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Constraints on the Progenitor of Cassiopeia A by Young, Patrick A, Fryer, Chris L, Hungerford, Aimee, Arnett, David, Rockefeller, Gabriel, Timmes, F. X, Voit, Benedict, Meakin, Casey, Eriksen, Kristoffer A

“…We compare a suite of three-dimensional explosion calculations and stellar models incorporating advanced physics with observational constraints on the…”
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ZERO IMPACT PARAMETER WHITE DWARF COLLISIONS IN FLASH by HAWLEY, W. P, ATHANASSIADOU, T, TIMMES, F. X

“…We systematically explore zero impact parameter collisions of white dwarfs (WDs) with the Eulerian adaptive grid code FLASH for 0.64 + 0.64 M sub([middot in…”
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