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Related papers: Modeling Kilonova Light Curves: Dependence on Nucl…

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The origin of the heavy elements in the Universe is not fully determined. Neutron star-black hole (NSBH) and {binary neutron star} (BNS) mergers may both produce heavy elements via rapid neutron-capture (r-process). We use the recent…

High Energy Astrophysical Phenomena · Physics 2021-11-17 Hsin-Yu Chen , Salvatore Vitale , Francois Foucart

Determining the final result of black hole-neutron star mergers, and in particular the amount of matter remaining outside the black hole at late times and its properties, has been one of the main motivations behind the numerical simulation…

High Energy Astrophysical Phenomena · Physics 2012-12-11 Francois Foucart

One of the most promising electromagnetic signatures of compact object mergers are kilonovae: approximately isotropic radioactively-powered transients that peak days to weeks post-merger. Key uncertainties in modeling kilonovae include the…

High Energy Astrophysical Phenomena · Physics 2016-10-05 Jennifer Barnes , Daniel Kasen , Meng-Ru Wu , Gabriel Mart'inez-Pinedo

During its hot, dense, early evolution the Universe was a primordial nuclear reactor, synthesizing the light nuclides D, 3He, 4He and 7Li in the first thousand seconds. The presently observed abundances of these relic nuclides provide a…

Astrophysics · Physics 2007-05-23 G. Steigman

When two Neutron Stars collide a multi-band electromagnetic emission, known as Kilonova (KN), follows being powered by the radioactive decay of ejecta products. In this contribution we discuss how the equation of state of dense matter,…

High Energy Astrophysical Phenomena · Physics 2021-05-28 D. Barba-González , M. Ángeles Pérez-García

The discovery of the radioactively powered kilonova AT2017gfo, associated with the short-duration gamma-ray burst GRB 170817A and the gravitational wave source GW170817, has provided the first direct evidence supporting binary neutron star…

High Energy Astrophysical Phenomena · Physics 2024-02-14 Meng-Hua Chen , Li-Xin Li , Qiu-Hong Chen , Rui-Chong Hu , En-Wei Liang

To search for transient astrophysical neutrino sources, IceCube's optical and X-ray follow-up program is triggered by two or more neutrino candidates arriving from a similar direction within 100s. However, the rate of such neutrino…

High Energy Astrophysical Phenomena · Physics 2019-04-05 Nora L. Strotjohann

The mergers of compact binaries with at least one neutron star component are the potential leading sites of the production and ejection of $r$-process elements. Discoveries of galactic binary pulsars, short gamma-ray bursts, and…

The appearance of nuclear clusters in stellar matter at densities below nuclear saturation is an important feature in the modeling of the equation of state for astrophysical applications. There are different theoretical concepts to describe…

Nuclear Theory · Physics 2016-12-22 Helena Pais , Stefan Typel

We implement the Bayesian inference to retrieve energy spectra of all neutrinos from a galactic core-collapse supernova (CCSN). To achieve high statistics and full sensitivity to all flavours of neutrinos, we adopt a combination of several…

High Energy Physics - Phenomenology · Physics 2023-09-26 Xu-Run Huang , Chuan-Le Sun , Lie-Wen Chen , Jun Gao

Neutrinoless double beta decay searches are currently among the major foci of experimental physics. The observation of such a decay will have important implications in our understanding of the intrinsic nature of neutrinos and shed light on…

Nuclear Theory · Physics 2020-12-15 L. Coraggio , N. Itaco , G. De Gregorio , A. Gargano , R. Mancino , S. Pastore

Material ejected during (or immediately following) the merger of two neutron stars may assemble into heavy elements by the r-process. The subsequent radioactive decay of the nuclei can power electromagnetic emission similar to, but…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Daniel Kasen , N. R. Badnell , Jennifer Barnes

Explicit expressions for the differential and total rates and emissivities of neutrino pairs from the photo-neutrino process $e^\pm + \gamma \to e^\pm + \nu + \bar\nu$ in hot and dense matter are derived. Full information about the emitted…

Astrophysics · Physics 2009-11-10 Sharada Iyer Dutta , Sasa Ratkovic , Madappa Prakash

The evolution and explosion of metal-free stars with masses 10--100 solar masses are followed, and their nucleosynthetic yields, light curves, and remnant masses determined. When the supernova yields are integrated over a Salpeter initial…

Astrophysics · Physics 2011-02-11 Alexander Heger , S. E. Woosley

The radioactive $\beta$-decay of nuclei synthesized in the rapid neutron capture process ($r$-process) releases a variety of particles, including electrons, $\gamma$-rays, neutrinos, and neutrons. These particles provide a rich set of…

High Energy Astrophysical Phenomena · Physics 2026-05-26 Axel Gross , Samuel Cupp , Matthew R. Mumpower

Aims: We present neutrino light curves and energy spectra for two representative type Ia supernova explosion models: a pure deflagration and a delayed detonation. Methods: We calculate the neutrino flux from $\beta$ processes using nuclear…

Solar and Stellar Astrophysics · Physics 2011-03-29 A. Odrzywolek , T. Plewa

The electromagnetic observations of GW170817 were able to dramatically increase our understanding of neutron star mergers beyond what we learned from gravitational waves alone. These observations provided insight on all aspects of the…

High Energy Astrophysical Phenomena · Physics 2020-03-04 C. J. Fontes , C. L. Fryer , A. L. Hungerford , R. T. Wollaeger , O. Korobkin

We present a new set of numerical-relativity simulations of merging binary neutron stars, aiming to identify possible observable signatures of the slope of the symmetry energy $L_{\rm sym}$. To achieve this goal, we employ a set of…

General Relativity and Quantum Cosmology · Physics 2025-12-08 Henrique Gieg , Maximiliano Ujevic , Armen Sedrakian , Tim Dietrich

Kilonovae are the electromagnetic transients created by the radioactive decay of freshly synthesized elements in the environment surrounding a neutron star merger. To study the fundamental physics in these complex environments, kilonova…

Black hole-neutron star mergers are among the promising gravitational-wave sources for ground-based detectors, and gravitational waves from black hole-neutron star mergers are expected to be detected in the next few years. Simultaneous…

High Energy Astrophysical Phenomena · Physics 2016-09-05 Kyohei Kawaguchi , Koutarou Kyutoku , Masaru Shibata , Masaomi Tanaka