Results 121 to 130 of about 72,692 (306)

Effect of Target Properties on Regolith Production

Remote Sensing
Based on the measurements of regolith thicknesses on the lunar maria (basalts), the lunar regolith was determined to have accumulated at a rate of about 1 m/Gyr since the era of the late heavy bombardment.
Minggang Xie, Yan Li
doaj   +1 more source

Compton degradation of gamma-ray line emission from radioactive isotopes in the classical nova V2491 Cygni

, 2010
To account for the non-thermal emission from the classical nova V2491 Cygni, we perform a series of numerical calculations of radiative transfer of \gamma-ray photons from the radioactive isotope $^{22}$Na in the matter ejected from a white dwarf.
Coc, Hachisu, Helton, Ibarra, Ibarra, Iliadis, Iyudin, Jose, Kuulkers, Makino, Makino, Munari, Nakano, Sallaska, Starrfield, Sunyaev, Suzuki, Takei, Tomov, Tomov, Wanajo, Weiss   +21 more
core   +1 more source

The peculiar ejecta of the nova V1425 Aquilae [PDF]

, 2023
C. Tappert, L. Celedón, L. Schmidtobreick   +2 more
openalex   +1 more source

The Effect of the Velocity Distribution on Kilonova Emission

The Astrophysical Journal
The electromagnetic emission from the nonrelativistic ejecta launched in neutron star mergers (either dynamically or through a disk wind) has the potential to probe both the total mass and composition of this ejecta.
Chris L. Fryer, Aimee L. Hungerford, Ryan T. Wollaeger, Jonah M. Miller, Soumi De, Christopher J. Fontes, Oleg Korobkin, Atul Kedia, Marko Ristic, Richard O’Shaughnessy   +9 more
doaj   +1 more source

Ancient eruptions of Eta Carinae: A tale written in proper motions

, 2016
We analyze eight epochs of Hubble Space Telescope H$\alpha$+[N II] imaging of Eta Carinae's outer ejecta. Proper motions of nearly 800 knots reveal that the detected ejecta are divided into three apparent age groups, dating to around 1250 A.D., to around
Kiminki, Megan M., Reiter, Megan, Smith, Nathan   +2 more
core   +1 more source

3D Reconstruction of DART Ejecta at Dimorphos Reveals an Anisotropic, Filamentary Structure

The Planetary Science Journal
We present a 3D reconstruction of the ejecta plume generated by the DART impact on Dimorphos based on LUKE images acquired by LICIACube. Using adaptive histogram equalization and geometric coregistration from multiple vantage points, we identified and ...
J. D. P. Deshapriya, P. H. Hasselmann, I. Gai, E. Dotto, S. Ivanovski, A. Rossi, A. Zinzi, V. Della Corte, I. Bertini, S. Ieva, E. Mazzotta Epifani, M. Dall’Ora, D. Perna, M. Amoroso, J. Beccarelli, J. R. Brucato, L. Calderone, A. Campo Bagatin, A. Capannolo, S. Caporali, M. Ceresoli, A. Cheng, G. Cremonese, R. T. Daly, L. Gomez Casajus, Xiaoyu Fu, David A. Glenar, E. Gramigna, G. Impresario, Seth A. Jacobson, Özgür Karatekin, R. Lasagni Manghi, M. Lavagna, Ramin Lolachi, M. Lombardo, A. Lucchetti, R. Luther, D. Modenini, M. Pajola, E. Palmer, S. Pirrotta, G. Poggiali, S. Raducan, P. Sánchez, Cem Berk Senel, Timothy J. Stubbs, G. Tancredi, P. Tortora, F. Tusberti, M. Zannoni, G. Zanotti   +50 more
doaj   +1 more source

Styles of ejecta emplacement under atmospheric conditions [PDF]

Laboratory experiments provide essential first-order constraints on processes affecting ballistic ejecta and styles of ejecta emplacement under different atmospheric environments at planetary scales.
Schultz, P. H.
core   +1 more source

The Three-Dimensional Expansion of the Ejecta from Tycho's Supernova Remnant

, 2017
We present the first three-dimensional measurements of the velocity of various ejecta knots in Tycho's supernova remnant, known to result from a Type Ia explosion.
Blondin, John M., Borkowski, Kazimierz J., Coyle, Nina M., Depasquale, Joseph, Ghavamian, Parviz, Hewitt, John W., Petre, Robert, Reynolds, Stephen P., Seitenzahl, Ivo R., Williams, Brian J., Yamaguchi, Hiroya   +10 more
core   +1 more source

Near-Infrared Spectroscopy of Dense Ejecta Knots in the Outer Eastern Area of the Cassiopeia A Supernova Remnant [PDF]

, 2023
Bon‐Chul Koo, Yong‐Hyun Lee, Jae‐Joon Lee, Sung-Chul Yoon   +3 more
openalex   +1 more source

Visualization of sneeze ejecta: steps of fluid fragmentation leading to respiratory droplets

Experiments in Fluids, 2016
Coughs and sneezes feature turbulent, multiphase flows that may contain pathogen-bearing droplets of mucosalivary fluid. As such, they can contribute to the spread of numerous infectious diseases, including influenza and SARS.
B. Scharfman, A. Techet, J. M. Bush, L. Bourouiba   +3 more
semanticscholar   +1 more source