Articles with "ejecta" as a keyword



Effects of Moon's Thermal State on the Impact Basin Ejecta Distribution

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Published in 2017 at "Geophysical Research Letters"

DOI: 10.1002/2017gl075405

Abstract: We investigate how different temperature gradients of the Moon affect the ejection of lithic and molten materials for impact basin several hundred kilometers in diameter to quantify the thickness and melt content of ejecta blanket… read more here.

Keywords: ejecta; impact; ejecta thickness; impact basin ... See more keywords

Mineralogical mapping of the Kerwan quadrangle on Ceres

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Published in 2019 at "Icarus"

DOI: 10.1016/j.icarus.2017.07.021

Abstract: Abstract The Ceres surface is globally composed of Mg-phyllosilicates, ammoniated clays, carbonates and dark components. To obtain a more detailed mineralogical and geological investigation, the dwarf planet surface has been divided into fifteen quadrangles. The… read more here.

Keywords: kerwan quadrangle; phyllosilicates ammoniated; ejecta; ceres surface ... See more keywords

Are hypervelocity impacts able to produce chondrule-like ejecta?

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Published in 2019 at "Planetary and Space Science"

DOI: 10.1016/j.pss.2019.06.008

Abstract: Abstract Chondrules are one of the major components of primitive meteorites. Their sphericity indicates they formed as molten fragments or droplets but conditions and mechanisms of chondrule formation remain unknown. A possible scenario is their… read more here.

Keywords: hypervelocity impacts; metal beads; size; ejecta ... See more keywords

The South Pole‐Aitken Basin: Constraints on Impact Excavation, Melt, and Ejecta

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Published in 2024 at "Geophysical Research Letters"

DOI: 10.1029/2024gl110034

Abstract: The formation and evolution of the South Pole‐Aitken (SPA) basin is critical to relating large impact basin formation and modification to lunar geophysical evolution. Most prior models of the SPA impact were conducted in 2D,… read more here.

Keywords: pole aitken; impact; ejecta; south pole ... See more keywords

Application of photon Doppler velocimetry for characterization of ejecta from shock-loaded samples

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Published in 2018 at "Journal of Applied Physics"

DOI: 10.1063/1.5029958

Abstract: We consider the problem of recovering the physical parameters of ejecta from data of photon Doppler velocimetry (PDV). The results of PDV measurements of ejecta production from shock-loaded Pb samples are presented. Shockwaves in the… read more here.

Keywords: loaded samples; ejecta; doppler velocimetry; photon doppler ... See more keywords

Numerical simulations of solid cerium ejecta transporting in vacuum and in non-reactive and reactive gases

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Published in 2023 at "Journal of Applied Physics"

DOI: 10.1063/5.0147712

Abstract: When a shock wave impacts a roughened metal/gas interface, metal ejecta particles emit and transport in the gas. The exchanges of momentum and energy between ejecta particles and the gas occur. If active metal particles… read more here.

Keywords: non reactive; gas; ejecta particles; temperature ... See more keywords

The Emission due to the Interaction of a Poynting Jet and the Ejecta

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Published in 2025 at "Research in Astronomy and Astrophysics"

DOI: 10.1088/1674-4527/ae143f

Abstract: The merger of two neutron stars may lead to the formation of a rapidly rotating magnetar. The interaction between the Poynting-flux-dominated jet and the surrounding ejecta gives rise to a pulsar wind nebula, which produces… read more here.

Keywords: interaction poynting; emission due; jet; emission ... See more keywords

Properties of the post in-spiral common envelope ejecta II: dust formation

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Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa2169

Abstract: We study the formation of dust in the expanding gas ejected as a result of a common envelope binary interaction. In our novel approach, we apply the dust formation model of Nozawa et al. to… read more here.

Keywords: formation; common envelope; dust formation; ejecta ... See more keywords

The infancy of core-collapse supernova remnants

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Published in 2021 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stab116

Abstract: We present 3D hydrodynamic simulations of neutrino-driven supernovae (SNe) with the PROMETHEUS-HOTB code, evolving the asymmetrically expanding ejecta from shock breakout until they reach the homologous expansion phase after roughly one year. Our calculations continue… read more here.

Keywords: core collapse; collapse supernova; infancy core; supernova remnants ... See more keywords

Impact of systematic nuclear uncertainties on composition and decay heat of dynamical and disk ejecta in compact binary mergers

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Published in 2022 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stad1458

Abstract: Theoretically predicted yields of elements created by the rapid neutron capture (r-) process carry potentially large uncertainties associated with incomplete knowledge of nuclear properties and approximative hydrodynamical modelling of the matter ejection processes. We present… read more here.

Keywords: systematic nuclear; impact systematic; ejecta; binary mergers ... See more keywords

2D end-to-end modelling of kilonovae from binary neutron star merger remnants

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Published in 2025 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staf1529

Abstract: We investigate the kilonova emission resulting from outflows produced in a 3D general-relativistic magnetohydrodynamic (GRMHD) simulation of a hypermassive neutron star (HMNS) remnant. We map the outflows into the flash hydrodynamics code to model their… read more here.

Keywords: end; neutron star; merger; ejecta ... See more keywords