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Rapid development of big data and high-performance computing have encouraged explosive studies of deep learning in geoscience. However, most studies only take single-type data as input, frittering away invaluable multisource, multi-scale…

Machine Learning · Computer Science 2020-05-19 Zhenyu Yuan , Yuxin Jiang , Jingjing Li , Handong Huang

Neutron-star (NS) - white-dwarf (WD) mergers may give rise to observable explosive transients, but have been little explored. We use 2D coupled hydrodynamical-thermonuclear FLASH-code simulations to study the evolution of WD debris-disks…

High Energy Astrophysical Phenomena · Physics 2019-04-24 Yossef Zenati , Hagai B. Perets , Silvia Toonen

The relativistic dynamic equations are derived for a superfluid-superconducting mixture coupled to the electromagnetic field. For definiteness, and bearing in mind possible applications of our results to neutron stars, it is assumed that…

General Relativity and Quantum Cosmology · Physics 2017-01-25 Mikhail E. Gusakov , Vasiliy A. Dommes

We study mass ejection from accretion disks formed in the merger of a white dwarf with a neutron star or black hole. These disks are mostly radiatively-inefficient and support nuclear fusion reactions, with ensuing outflows and…

High Energy Astrophysical Phenomena · Physics 2019-07-10 Rodrigo Fernández , Ben Margalit , Brian D. Metzger

We construct one dimensional steady-state models of accretion disks produced by the tidal disruption of a white dwarf (WD) by a neutron star (NS) or stellar mass black hole (BH). At radii r <~ 1e8.5-1e9 cm the midplane density and…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Brian D. Metzger

Even--even nuclei in the $A\sim100$ mass region are investigated within the framework of the interacting boson model-1 ({IBM-1}). The study includes energy spectra and electric quadrupole transition properties of zirconium, molybdenum,…

Nuclear Theory · Physics 2012-01-27 M. Böyükata , P. Van Isacker , I. Uluer

The rates of electron neutrino capture on neutron, electron anti-neutrino capture on proton, and their reverse processes are important for understanding the production of heavy elements in the supernova environment above the protoneutron…

Astrophysics · Physics 2009-11-11 Huaiyu Duan , Yong-Zhong Qian

Machine learning-based neural network potentials have the ability to provide ab initio-level predictions while reaching large length and time scales often limited to empirical force fields. Traditionally, neural network potentials rely on a…

Chemical Physics · Physics 2023-01-19 Harender S. Dhattarwal , Ang Gao , Richard C. Remsing

We predict geoneutrino fluxes in a reference model based on a detailed description of Earth's crust and mantle and using the best available information on the abundances of uranium, thorium, and potassium inside Earth's layers. We estimate…

High Energy Physics - Phenomenology · Physics 2011-01-04 Fabio Mantovani , Luigi Carmignani , Gianni Fiorentini , Marcello Lissia

The intracluster medium (ICM) is a reservoir of heavy elements synthesized by different supernovae (SNe) types over cosmic history. Different enrichment mechanisms contribute a different relative metal production, predominantly caused by…

High Energy Astrophysical Phenomena · Physics 2022-09-14 Rebeca Batalha , Renato Dupke , Yolanda Jiménez-Teja

Mature neutron stars are cold enough to contain a number of superfluid and superconducting components. These systems are distinguished by the presence of additional dynamical degrees of freedom associated with superfluidity. In order to…

Solar and Stellar Astrophysics · Physics 2015-05-18 K. Glampedakis , N. Andersson , L. Samuelsson

Few white dwarfs, located in binary systems, may acquire sufficiently high mass accretion rates resulting in the burning of carbon and oxygen under nondegenerate conditions forming a O+Ne+Mg core. These O+Ne+Mg cores are gravitationally…

Nuclear Theory · Physics 2015-06-22 Jameel-Un Nabi

Electron capture rates on neutron-rich nuclei (A>65) were calculated within the Random Phase Approximation with partial number formalism, including allowed and forbidden transitions. The partial occupation numbers were provided as a…

Nuclear Theory · Physics 2015-06-26 J. M. Sampaio , K. Langanke , G. Martinez-Pinedo , E. Kolbe , D. J. Dean

Aims. We define a small and large chemical network which can be used for the quantitative simultaneous analysis of molecular emission from the near-IR to the submm. We revise reactions of excited molecular hydrogen, which are not included…

Solar and Stellar Astrophysics · Physics 2017-11-15 Inga Kamp , Wing-Fai Thi , Peter Woitke , Christian Rab , Sietske Bouma , Francois Menard

Nova explosions occur on the white dwarf (WD) component of a Cataclysmic Variable stellar system which is accreting matter lost by a companion. A Type Ia supernova explosion is thought to result when a WD, in a similar binary configuration,…

Astrophysics · Physics 2009-11-10 S. Starrfield , F. X. Timmes , W. R. Hix , E. M. Sion , W. M. Sparks , S. J. Dwyer

Understanding ion adsorption at electrified metal-electrolyte interfaces is essential for accurate modeling of electrochemical systems. Here, we systematically investigate the free energy profiles of Na$^+$, Cl$^-$, and F$^-$ ions at the…

Chemical Physics · Physics 2026-02-27 Fabrice Roncoroni , Abrar Faiyad , Yichen Li , Tao Ye , Ashlie Martini , David Prendergast

We explore the evolution of radiatively inefficient accretion disks in which nuclear reactions are dynamically important (`Nuclear Dominated Accretion Flows', or NuDAFs). Examples of such disks are those generated by the merger of a white…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Rodrigo Fernández , Brian D. Metzger

A number of supernova remnants (SNRs) show nonthermal X-rays assumed to be synchrotron emission from shock accelerated TeV electrons. The existence of these TeV electrons strongly suggests that the shocks in SNRs are sources of galactic…

Astrophysics · Physics 2009-11-10 Donald C. Ellison , Anne Decourchelle , Jean Ballet

We explore the systematics of ground-state and excitation energies in singly-strange hypernuclei throughout the helium and lithium isotopic chains --- from $^5_\Lambda$He to $^{11}_\Lambda$He and from $^7_\Lambda$Li to $^{12}_\Lambda$Li ---…

Nuclear Theory · Physics 2018-03-01 Roland Wirth , Robert Roth

Recent progress in numerical simulations of thermonuclear supernova explosions brings up a unique opportunity in studying the progenitors of Type Ia supernovae. Coupling state-of-the-art explosion models with detailed hydrodynamical…

High Energy Astrophysical Phenomena · Physics 2015-03-26 D. Kosenko , W. Hillebrandt , M. Kromer , S. I. Blinnikov , R. Pakmor , J. S. Kaastra