Results 21 to 30 of about 184,359 (287)
Universe, 2022 The presence of dust in the intracluster medium (ICM) has been a long-standing problem that is still awaiting elucidation. Direct observational diagnostics are rather challenging (though not impossible) either because of a sparse distribution of dust in ...
Yuri A. Shchekinov +2 more
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Dust Destruction in Nonradiative Shocks [PDF]
The Astrophysical Journal, 2019 Abstract Supernova remnant (SNR) shock waves are the main place where interstellar dust grains are destroyed. However, the dust destruction efficiency in nonradiative shocks is still not well known. One way to estimate the fraction of dust destroyed is to compare the difference between postshock gas abundances and preshock medium total ...
H. Zhu, P. Slane, J. Raymond, W. W. Tian
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Galaxy simulation with dust formation and destruction [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We perform smoothed particle hydrodynamics (SPH) simulations of an isolated galaxy with a new treatment for dust formation and destruction. To this aim, we treat dust and metal production self-consistently with star formation and supernova feedback. For dust, we consider a simplified model of grain size distribution by representing the entire range of ...
Aoyama, Shohei +6 more
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Effects of Barnett Magnetic Dipole–Dipole Interaction on Grain Growth and Destruction
The Astrophysical Journal, 2023 Rapidly spinning magnetic grains can acquire large magnetic dipole moments due to the Barnett effect. Here we study the new effect of Barnett magnetic dipole–dipole interaction on grain–grain collisions and grain growth, assuming that grains are spun up ...
Thiem Hoang, Bao Truong
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Dust destruction at high Galactic altitude
ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021, 2022 We consider the destruction of dust at high galactic altitudes based on an earlier developed model of the movement of dustin the Galaxy, due to the stellar radiation pressure, gravity and gas drag. The possibility of dust sweeping is consideredtaking into account its collisions with the Galactic gas and between dust particles.
M. Murga, D. Wiebe, E. Sivkova
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The Astrophysical Journal, 2022 We introduce a model for the explicit evolution of interstellar dust in a cosmological galaxy formation simulation. We post-process a simulation from the Cosmic Reionization on Computers project, integrating an ordinary differential equation for the ...
Clarke J. Esmerian, Nickolay Y. Gnedin
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Dust sputtering within the inner heliosphere: a modelling study [PDF]
Annales Geophysicae, 2020 The aim of this study is to investigate through modelling how sputtering by impacting solar wind ions influences the lifetime of dust particles in the inner heliosphere near the Sun.
C. Baumann +3 more
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MACROSCOPIC DUST IN PROTOPLANETARY DISKS—FROM GROWTH TO DESTRUCTION [PDF]
The Astrophysical Journal, 2014 The collision dynamics of dusty bodies are crucial for planetesimal formation. Especially decimeter agglomerates are important in the different formation models. Therefore, in continuation of our experiments on mutual decimeter collisions, we investigate collisions of centimeter onto decimeter dust agglomerates in a small drop tower under vacuum ...
Deckers, Johannes, Teiser, Jens
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The Dynamics, Destruction, and Survival of Supernova-formed Dust Grains [PDF]
The Astrophysical Journal, 2020 Abstract Observations have demonstrated that supernovae efficiently produce dust. This is consistent with the hypothesis that supernovae and asymptotic giant branch stars are the primary producers of dust in the universe. However, there has been a longstanding question of how much of the dust detected in the interiors of young supernova ...
Slavin, Jonathan D. +3 more
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Determination of qualitative working indices of harrows with elastic fangs [PDF]
E3S Web of Conferences, 2021 In modern agriculture, grinding, levelling, loosening the soil surface layer and weed destruction, with application in the vegetable and technical crops sector, are carried out by a wide range of agricultural machines generically called harrows.
Cujbescu Dan +3 more
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