Results 71 to 80 of about 2,733 (195)

Dancing ejecta

open access: yesJournal of Fluid Mechanics
Splashing of impacting drops produces a myriad of secondary spray droplets, which generate aerosols during rain on the ocean and can cause health hazards during the spraying of pesticides or enhance the droplet transmission of disease. Determining the size and number of the finest splashed droplets is therefore of practical interest.
Yuan Si Tian   +3 more
openaire   +2 more sources

Multiband Emission from Star–Disk Collisions and Implications for Quasiperiodic Eruptions

open access: yesThe Astrophysical Journal
We perform two-dimensional, multigroup radiation hydrodynamic simulations to explore the observational properties of a solar-like star colliding with an accretion disk around a supermassive black hole at a separation of ∼100 gravitational radii.
Xiaoshan Huang   +2 more
doaj   +1 more source

Orbital Capture of Ejecta into Periodic Orbits around Binary Asteroid (65803) Didymos

open access: yesThe Planetary Science Journal
The successful impact of the Double Asteroid Redirection Test (DART) spacecraft on Dimorphos enabled the first-ever extensive observation of a postimpact ejecta tail from a binary asteroid system.
Xiaoyu Fu   +28 more
doaj   +1 more source

Estimating the Contribution of Dynamical Ejecta in the Kilonova Associated with GW170817

open access: yesThe Astrophysical Journal Letters, 2017
The source of the gravitational-wave (GW) signal GW170817, very likely a binary neutron star merger, was also observed electromagnetically, providing the first multi-messenger observations of this type.
B. P. Abbott   +1101 more
doaj   +1 more source

Type Iax Supernovae as a Source of Iron-rich Silicate Dust

open access: yesThe Astrophysical Journal
We 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
doaj   +1 more source

Simulated 3D 56Ni Distributions of Type IIp Supernovae

open access: yesThe Astrophysical Journal
We present the first three-dimensional study of the asymptotic ejecta distributions for a suite of theoretical Type IIp supernovae originating from red supergiant (RSG) progenitors.
David Vartanyan   +6 more
doaj   +1 more source

Radiative Transfer Modeling of Stripped-envelope Supernovae. I. A Grid for Ejecta Parameter Inference

open access: yesThe Astrophysical Journal
We 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
doaj   +1 more source

Delivery of DART Impact Ejecta to Mars and Earth: Opportunity for Meteor Observations

open access: yesThe Planetary Science Journal
NASA’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
doaj   +1 more source

Ejecta Mass Estimates from the DART Impact Plume Inferred from LICIACube Images

open access: yesThe Planetary Science Journal
We 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
doaj   +1 more source

Probing Shocked Ejecta in SN 1987A: A Novel Diagnostic Approach Using XRISM-Resolve

open access: yesThe Astrophysical Journal Letters
Supernova (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
doaj   +1 more source

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