Results 111 to 120 of about 72,692 (306)

Linking Analytic Light-curve Models to Physical Properties of Kilonovae

The Astrophysical Journal
In binary neutron star mergers, lanthanide-rich dynamical ejecta and lanthanide-poor postmerger ejecta have often been linked to red and blue kilonova emission, respectively.
Ayari Kitamura, Kyohei Kawaguchi, Masaomi Tanaka, Sho Fujibayashi   +3 more
doaj   +1 more source

Ejecta types on Ganymede and Callisto [PDF]

Ejecta types on Ganymede and Callisto have been identified from Voyager 1 and 2 images. Image resolution used range from approx. 0.6 to approx. 4 km/pxl, which allowed the surveying of almost all of the mappable surface of the two satellites.
Greeley, Ronald, Horner, V. M.
core   +1 more source

The Relation Between Ejecta Velocity, Intrinsic Color, and Host-Galaxy Mass for High-Redshift Type Ia Supernovae

, 2012
Recently, using a large low-redshift sample of Type Ia supernovae (SNe Ia), we discovered a relation between SN Ia ejecta velocity and intrinsic color that improves the distance precision of SNe Ia and reduces potential systematic biases related to dust ...
Amanullah, Blondin, Coil, Conley, Conley, Conley, Ellis, Foley, Foley, Foley, Foley, Foley, Frieman, Ganeshalingam, Hicken, Hicken, Holtzman, Hook, Howell, Howell, Howell, Höflich, Kasen, Kelly, Kelly, Kessler, Konishi, Lampeitl, Lentz, Leonard, Matheson, Matheson, Maund, Miknaitis, Nugent, Perlmutter, Riess, Riess, Riess, Ryan J. Foley, Sako, Sullivan, Wang, Wood-Vasey, Zheng   +44 more
core   +1 more source

Textural and geochemical diversity of impact melt rock clasts in Apollo 16 sample 67015: Implications for the provenance of impact ejecta in the lunar highlands

Meteoritics &Planetary Science, Volume 61, Issue 1, Page 39-63, January 2026.
Abstract Apollo sample 67015 has been classified as a fragmental breccia comprised of highlands‐type clasts and is proposed to be the most complex Apollo 16 sample. 67015 is dominated by impact melt rock clasts that display a variety of textures, which have been previously interpreted to be indicative of multiple impact events.
Tara S. Hayden, Gordon R. Osinski
wiley   +1 more source

Fluidized Appearing Ejecta on Ceres: Implications for the Mechanical Properties, Frictional Properties, and Composition of its Shallow Subsurface

Journal of Geophysical Research: Planets, 2019
Several ejecta deposits on Ceres display morphological characteristics not commonly associated with dry ballistic emplacement. We characterized 30 examples of fluidized appearing ejecta (FAE) on Ceres and identified two distinct morphological populations:
K. Hughson, C. Russell, B. Schmidt, H. Chilton, H. Sizemore, P. Schenk, C. Raymond   +6 more
semanticscholar   +1 more source

Solar Energetic Particle Events During May 2024 Geomagnetic Superstorm

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Three solar energetic particle (SEP) events originating from solar active region 13664 occurred on 10–16 May 2024, coinciding with a geomagnetic superstorm. Using data from the Geostationary Operational Environmental Satellites and Meteorological Operational satellite‐C, we investigate the energetic proton fluxes and east‐west flux ratios in ...
Zhenghao She, Hui Zhu, Xiangliang Kong, Yao Chen, Yingying Zhao, Huicong Chen, Zhijie Qin, Wenqing Ma   +7 more
wiley   +1 more source

Impact Ejecta and Gardening in the Lunar Polar Regions

Journal of Geophysical Research: Planets, 2019
The Moon is continually bombarded by interplanetary meteoroids. While many of the meteoroid sources are near the ecliptic plane, a significant population of high‐inclination meteoroids exists at 1 au that bombards the lunar polar regions.
J. Szalay, P. Pokorný, Z. Sternovsky, Z. Kupihar, A. Poppe, M. Horányi   +5 more
semanticscholar   +1 more source

RADIOACTIVITY AND THERMALIZATION IN THE EJECTA OF COMPACT OBJECT MERGERS AND THEIR IMPACT ON KILONOVA LIGHT CURVES [PDF]

, 2016
One promising electromagnetic signature of compact object mergers are kilonovae: approximately isotropic radioactively powered transients that peak days to weeks post-merger.
J. Barnes, D. Kasen, Meng-Ru Wu, G. Mart'inez-Pinedo   +3 more
semanticscholar   +1 more source

Luminous type IIP SN 2013ej with high-velocity Ni-56 ejecta

, 2017
We explore the well-observed type IIP SN 2013ej with peculiar luminosity evolution. It is found that the hydrodynamic model cannot reproduce in detail the bolometric luminosity at both the plateau and the radioactive tail.
Chugai, N. N., Utrobin, V. P.
core   +1 more source

The dynamical mass ejection from binary neutron star mergers: Radiation-hydrodynamics study in general relativity

, 2015
We perform radiation-hydrodynamics simulations of binary neutron star mergers in numerical relativity on the Japanese "K" supercomputer, taking into account neutrino cooling and heating by an updated leakage-plus-transfer scheme for the first time ...
Kiuchi, Kenta, Kyutoku, Koutarou, Sekiguchi, Yuichiro, Shibata, Masaru   +3 more
core   +1 more source