Results 71 to 80 of about 70,331 (294)
AerospaceSafe landings are imperative to accomplish NASA’s Artemis goal to enable human exploration on the Moon, including sample collection missions. However, a process known as plume surface interaction (PSI) presents a significant hazard to lunar landings. PSI
Ariana Bueno +5 more
doaj +1 more source
Trans-Ejecta High-Energy Neutrino Emission from Binary Neutron Star Mergers [PDF]
, 2018 The observations of a macronova/kilonova accompanied by gravitational waves from a binary neutron star merger (GW170817) confirmed that neutron star coalescences produce copious ejecta.
Bartos, Imre +5 more
core +2 more sources
Propagation of a Short GRB Jet in the Ejecta: Jet Launching Delay Time, Jet Structure, and GW170817/GRB 170817A [PDF]
Astrophysical Journal, 2019 We perform a series of relativistic magnetohydrodynamic simulations to investigate how a hot magnetic jet propagates within the dynamical ejecta of a binary neutron star merger, focusing on how the jet structure depends on the delay time of jet launching
J. Geng +4 more
semanticscholar +1 more source
ALMA Observations of the DART Impact: Characterizing the Ejecta at Submillimeter Wavelengths
The Planetary Science Journal, 2023 We report observations of the Didymos–Dimorphos binary asteroid system using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Atacama Compact Array (ACA) in support of the Double Asteroid Redirection Test mission.
Nathan X. Roth +14 more
doaj +1 more source
Transport of impact ejecta from Mars to its moons as a means to reveal Martian history [PDF]
Scientific Reports, 2019 Throughout the history of the solar system, Mars has experienced continuous asteroidal impacts. These impacts have produced impact-generated Mars ejecta, and a fraction of this debris is delivered to Earth as Martian meteorites.
R. Hyodo +4 more
semanticscholar +1 more source
Nucleosynthesis in the Innermost Ejecta of Neutrino-driven Supernova Explosions in Two Dimensions [PDF]
, 2017 We examine nucleosynthesis in the innermost neutrino-processed ejecta (a few ) of self-consistent two-dimensional explosion models of core-collapse supernovae (CCSNe) for six progenitor stars with different initial masses.
S. Wanajo +3 more
semanticscholar +1 more source
Viscous-dynamical Ejecta from Binary Neutron Star Mergers [PDF]
Astrophysical Journal, 2018 General-relativistic simulations of binary neutron star (NS) mergers with viscosity reveal a new outflow mechanism operating in unequal mass binaries on dynamical timescales and enabled by turbulent viscosity.
D. Radice +5 more
semanticscholar +1 more source
AerospaceRubble-pile asteroids may be the type of near-Earth object most likely to threaten Earth in a future collision event. Small-scale impact experiments and numerical simulations for large-scale impacts were conducted to clarify the size ratio of the boulder/
Wenjin Liu +7 more
doaj +1 more source
High-energy X-ray radiography investigation on the ejecta physics of laser shock-loaded tin
AIP Advances, 2019 This study is devoted to the high-energy X-ray radiography investigation on the ejecta physics of laser shock-loaded tin. The ejecta were generated via laser shock loaded tin under sequential shock-breakout pressures by high-power nanosecond lasers.
Weihua He +8 more
doaj +1 more source
Small-Scale X-ray Variability in the Cassiopeia A Supernova Remnant [PDF]
, 2006 A comparison of X-ray observations of the Cassiopeia A supernova remnant taken in 2000, 2002, and 2004 with the Chandra ACIS-S3 reveals the presence of several small scale features (
Daniel J. Patnaude +3 more
core +3 more sources