The Dimorphos ejecta plume properties revealed by LICIACube [PDF]
NatureThe Double Asteroid Redirection Test (DART) had an impact with Dimorphos (a satellite of the asteroid Didymos) on 26 September 20221. Ground-based observations showed that the Didymos system brightened by a factor of 8.3 after the impact because of ...
Elisabetta Dotto, , Giovanni Poggiali
exaly +3 more sources
Constraint on the ejecta mass for a black hole-neutron star merger event candidate S190814bv [PDF]
Astrophysical Journal, 2020 We derive the upper limit to the ejecta mass of S190814bv, a black hole-neutron star merger candidate, through the radiative transfer simulations for kilonovae with the realistic ejecta density profile as well as the detailed opacity and heating rate ...
Kawaguchi, Kyohei +2 more
core +4 more sources
Dynamical ejecta of neutron star mergers with nucleonic weak processes\n I: Nucleosynthesis [PDF]
, 2021 We present a coherent study of the impact of neutrino interactions on the r-process element nucleosynthesis and the heating rate produced by the radioactive elements synthesised in the dynamical ejecta of neutron star-neutron star (NS-NS) mergers.
I Kullmann +5 more
openalex +3 more sources
Ejecta velocities in twice-shocked liquid metals under extreme conditions: A hydrodynamic approach
Matter and Radiation at Extremes, 2019 We apply a hydrodynamic approach to analyze ejecta emanating from doubly shocked liquid metals. In particular, we are interested in characterizing ejecta velocities in such situations by treating the problem as a limiting case of the ...
V. Karkhanis, P. Ramaprabhu
doaj +2 more sources
On the Jet–Ejecta Interaction in 3D GRMHD Simulations of a Binary Neutron Star Merger Aftermath [PDF]
, 2022 Short γ-ray burst (sGRB) jets form in the aftermath of a neutron star merger, drill through disk winds and dynamical ejecta, and extend over four to five orders of magnitude in distance before breaking out of the ejecta.
O. Gottlieb +5 more
semanticscholar +1 more source
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +2 more sources
Morphology and spectral properties of the DART impact ejecta with VLT/MUSE
Astronomy & Astrophysics, 2023 Context. On September 26, 2022, the NASA DART mission impacted the asteroid Dimorphos, the smaller component of the Didymos binary asteroid system. This provided a unique opportunity to observe, in real time, the evolution of the ejecta cloud produced by
C. Opitom +8 more
semanticscholar +1 more source
Predictions for the hydrogen-free ejecta of pulsational pair-instability supernovae [PDF]
Astronomy & Astrophysics, 2020 Present and upcoming time-domain astronomy efforts, in part driven by gravitational-wave follow-up campaigns, will unveil a variety of rare explosive transients in the sky.
M. Renzo +7 more
semanticscholar +1 more source
Fast neutrino flavor conversion, ejecta properties, and nucleosynthesis in newly-formed hypermassive remnants of neutron-star mergers [PDF]
, 2020 Neutrinos emitted in the coalescence of two neutron stars affect the dynamics of the outflow ejecta and the nucleosynthesis of heavy elements. In this work, we analyze the neutrino emission properties and the conditions leading to the growth of flavor ...
M. George +4 more
semanticscholar +1 more source
The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. III. Optical and UV Spectra of a Blue Kilonova from Fast Polar Ejecta [PDF]
, 2017 We present optical and ultraviolet spectra of the first electromagnetic counterpart to a gravitational-wave (GW) source, the binary neutron star merger GW170817.
M. Nicholl +39 more
semanticscholar +1 more source