Results 101 to 110 of about 50,731 (225)
Type Iax Supernovae as a Source of Iron-rich Silicate Dust
The Astrophysical JournalWe model the formation of dust in the ejecta of Type Iax supernovae (SNe), which is a low-luminosity subclass of Type Ia SNe. A nonequilibrium chemical kinetic approach is adopted to trace the synthesis of molecules, molecular clusters, and dust grains ...
Aman Kumar, Arkaprabha Sarangi
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The Flux of Impact Ejecta on the Lunar Surface from Scaling Considerations: Implications for Operational Hazards and Geomorphic Forcing [PDF]
The impact cratering process has been critical to the evolution of the Moons surface over its geologic history and remains an important ongoing process today.
Fassett, C. I.
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The Astrophysical JournalWe present 1800 multiwavelength Type Ib/c supernovae light-curve models obtained by running the radiation transport code Sedona and varying the mass distribution, velocity profile, and abundance ejecta profiles of helium star progenitors.
S. Karthik Yadavalli +5 more
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Production of impact melt in craters on Venus, Earth, and the moon [PDF]
Impact craters imaged by Magellan clearly show large amounts of flow-like ejecta whose morphology suggests that the flows comprise low-viscosity material.
Melosh, H. J., Vickery, A. M.
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The Acraman impact and its widespread ejecta, South Australia [PDF]
Discovery of a widespread horizon of shock-deformed volcaniclastic ejecta preserved in Late Proterozoic (approx. 600 Ma) shales in South Australia and its probable link to the Acraman impact structure in the Middle Proterozoic Gawler Range.
Gostin, V. A. +2 more
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Delivery of DART Impact Ejecta to Mars and Earth: Opportunity for Meteor Observations
The Planetary Science JournalNASA’s Double Asteroid Redirection Test (DART) and ESA’s Hera missions offer a unique opportunity to investigate the delivery of impact ejecta to other celestial bodies. We performed ejecta dynamical simulations using 3 million particles categorized into
Eloy Peña-Asensio +3 more
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Ejecta Mass Estimates from the DART Impact Plume Inferred from LICIACube Images
The Planetary Science JournalWe report ejecta mass estimates produced by the Double Asteroid Redirection Test impact with Dimorphos, the secondary of the Didymos asteroid binary system.
Ramin Lolachi +13 more
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Probing Shocked Ejecta in SN 1987A: A Novel Diagnostic Approach Using XRISM-Resolve
The Astrophysical Journal LettersSupernova (SN) 1987A is one of the best candidates to exploit the capabilities of the freshly launched XRISM satellite. This celestial object offers the unique opportunity to study the evolution of an SN into a young supernova remnant. To date, the X-ray
Vincenzo Sapienza +12 more
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Origin of α-poor Very Metal-poor Stars
The Astrophysical JournalAmong very metal-poor (VMP) stars, α -poor VMP ( α -PVMP) stars that have subsolar values of [X/Fe] for Mg and other α elements are rare and are thought to have been formed from gas polluted by Type 1a supernova (SN 1a). However, recent analyses indicate
S. K. Jeena, Projjwal Banerjee
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Earth and Space ScienceThe martian tropical water ice spatial and temporal distribution was characterized using impact crater ejecta type, location, size, and age in one of two epochs, ≤3.4 Ga and >3.4 Ga, using statistical models designed for spatial and temporal correlation ...
Jamie D. Riggs, Michelle R. Kirchoff
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