Results 21 to 30 of about 50,731 (225)

Infrared Ejecta and Cold Dust in the Young Supernova Remnant N132D

The Astrophysical Journal, 2023
We present Spitzer, Wide-field Infrared Survey Explorer (WISE), and Herschel observations of the young supernova remnant (SNR) N132D in the Large Magellanic Cloud, including 3–40 μ m Spitzer Infrared Spectrograph (IRS) mapping, 12 μ m WISE and 70, 100 ...
Jeonghee Rho, Aravind P. Ravi, Jonathan D. Slavin, Heechan Cha   +3 more
doaj   +1 more source

Atmospheric Interactions of Ejecta on Earth and Mars Including the Effect of Vaporization

The Planetary Science Journal, 2023
Atmospheres play an important role in ejecta deposition after an impact event. Many impact experiments and simulations neglect the effect of atmospheres.
M. A. Carlson, H. J. Melosh, B. C. Johnson   +2 more
doaj   +1 more source

Mass Loss From Planetary Nebulae in Elliptical Galaxies [PDF]

, 2009
Early-type galaxies possess a dilute hot (2-10E6 K) gas that is probably the thermalized ejecta of the mass loss from evolving stars. We investigate the processes by which the mass loss from orbiting stars interacts with the stationary hot gas for the ...
Athey, Bedijn, Boffi, Bregman, Brighenti, Diehl, Humphrey, Ji, Joel N. Bregman, Joel R. Parriott, Parriott, Parriott, Zoccali   +12 more
core   +1 more source

Effects of target temperature on size distribution of ejecta in hypervelocity impact : Toward revision of ISO11227

Mechanical Engineering Journal, 2016
As a preliminary study, the effects of target temperature on ejecta size were examined at an impact velocity of 3.5 km/s with the goal of improving the ISO11227.
Masahiro NISHIDA, Naoto MIYOKAWA, Fumiya KODAMA, Koichi HAYASHI, Pauline FAURE, Koichi NORIMATSU, Yusuke FUJIMURA, Yasuhiro AKAHOSHI   +7 more
doaj   +1 more source

Cosmic noise absorption signature of particle precipitation during interplanetary coronal mass ejection sheaths and ejecta [PDF]

Annales Geophysicae, 2020
We study here energetic-electron (E>30 keV) precipitation using cosmic noise absorption (CNA) during the sheath and ejecta structures of 61 interplanetary coronal mass ejections (ICMEs) observed in the near-Earth solar wind between 1997 and ...
E. Kilpua, L. Juusola, M. Grandin, A. Kero, S. Dubyagin, N. Partamies, N. Partamies, A. Osmane, H. George, M. Kalliokoski, T. Raita, T. Asikainen, M. Palmroth, M. Palmroth   +13 more
doaj   +1 more source

Experimental and Numerical Simulation of Ejecta Size and Velocity of Hypervelocity Impact Rubble-Pile Asteroid

Aerospace
Rubble-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, Qingming Zhang, Renrong Long, Jiankang Ren, Juncheng Li, Zizheng Gong, Qiang Wu, Siyuan Ren   +7 more
doaj   +1 more source

Instrument to Study Plume Surface Interactions (PSI) on the Lunar Surface: Science Motivation, Requirements, Instrument Overview, and Test Plans

Aerospace
Safe 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, Michael J. Krasowski, Norman Prokop, Lawrence C. Greer, Christina M. Adams, Nilton O. Rennó   +5 more
doaj   +1 more source

Mass Ejection from the Remnant of a Binary Neutron Star Merger: Viscous-Radiation Hydrodynamics Study

, 2018
We perform long-term general relativistic neutrino radiation hydrodynamics simulations (in axisymmetry) for a massive neutron star (MNS) surrounded by a torus, which is a canonical remnant formed after the binary neutron star merger. We take into account
Fujibayashi, Sho, Kiuchi, Kenta, Nishimura, Nobuya, Sekiguchi, Yuichiro, Shibata, Masaru   +4 more
core   +1 more source

Ejecta‐Modulated Bubble Dynamics Play a Dominant Role in Stone Retropulsion

Advanced Science, EarlyView.
Stone motion during laser ablation is shown to result primarily from asymmetric cavitation bubble collapse, not from ejecta recoil. This challenges long‐standing assumptions and highlights the dominant role of bubble dynamics in laser–material interactions.
Obed S. Isaac, Arpit Mishra, Georgy N. Sankin, Junqin Chen, Pei Zhong   +4 more
wiley   +1 more source

High‐Fidelity Cretaceous‐Paleogene Boundary Investigations: Records of Impact and Transport

Geochemistry, Geophysics, Geosystems
The Chicxulub impact on the Yucatán Peninsula triggered the end‐Cretaceous mass extinction 66 million years ago, but physical models still struggle to accurately describe ejecta generation and transport from this and other large meteorite impacts.
Catherine H. Ross, Christian Koeberl, Sean P. S. Gulick   +2 more
doaj   +1 more source