Results 1 to 10 of about 169 (153)
shiva: a dust destruction model [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACTWe present a numerical tool, shiva, designed to simulate the dust destruction in warm neutral, warm ionized and hot ionized media under the influence of photo-processing, sputtering and shattering. The tool is designed primarily to study the evolution of hydrogenated amorphous carbons (HACs), but options to simulate polycyclic aromatic ...
M S Murga, D S Wiebe, Vitaly Akimkin
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The impact of metallicity-dependent dust destruction on the dust-to-metals ratio in galaxies [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2021 ABSTRACT The ratio of the mass of interstellar dust to the total mass of metals (the dust-to-metals/DTM ratio) tends to increase with metallicity. This can be explained by the increasing efficiency of grain growth in the interstellar medium (ISM) at higher metallicities, with a corollary being that the low DTM ratios seen at low ...
F D Priestley, I De Looze, M J Barlow
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The role of dust destruction and dust growth in the evolution of the interstellar medium [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We use Milky Way-like chemodynamical simulations with a new treatment for dust destruction and growth to investigate how these two processes affect the properties of the interstellar medium in galaxies. We focus on the role of two specific parameters, namely fdes (a new parameter that determines the fraction of dust destroyed in
Kenji Bekki, L Cortese, Bekki Kenji
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Dust destruction and survival in the Cassiopeia A reverse shock [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Core-collapse supernovae (CCSNe) produce large ($\gtrsim0.1\,{\rm M}_\odot$) masses of dust, and are potentially the primary source of dust in the Universe, but much of this dust may be destroyed before reaching the interstellar medium.
F D Priestley, M J Barlow, I De Looze
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DUST DESTRUCTION RATES AND LIFETIMES IN THE MAGELLANIC CLOUDS [PDF]
Astrophysical Journal, 2015 The nature, composition, abundance, and size distribution of dust in galaxies is determined by the rate at which it is created in the different stellar sources and destroyed by interstellar shocks. Because of their extensive wavelength coverage, proximity, and nearly face-on geometry, the Magellanic Clouds (MCs) provide a unique opportunity to study ...
Tea Temim +2 more
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Cosmological simulation with dust formation and destruction [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 To investigate the evolution of dust in a cosmological volume, we perform hydrodynamic simulations, in which the enrichment of metals and dust is treated self-consistently with star formation and stellar feedback. We consider dust evolution driven by dust production in stellar ejecta, dust destruction by sputtering, grain growth by accretion and ...
Kuan-Chou Hou +2 more
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Dust destruction in the ISM: a re-evaluation of dust lifetimes [PDF]
Astronomy and Astrophysics, 2011 There is a long-standing conundrum in interstellar dust studies relating to the discrepancy between the time-scales for dust formation from evolved stars and the apparently more rapid destruction in supernova-generated shock waves. Aims. We re-examine some of the key issues relating to dust evolution and processing in the interstellar medium.
A P Jones
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Revisiting the dust destruction efficiency of supernovae [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Dust destruction by supernovae is one of the main processes removing dust from the interstellar medium (ISM). Estimates of the efficiency of this process, both theoretical and observational, typically assume a shock propagating into a homogeneous medium, whereas the ISM possesses significant substructure in reality.
F D Priestley, M Matsuura, I De Looze
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DESTRUCTION OF INTERSTELLAR DUST IN EVOLVING SUPERNOVA REMNANT SHOCK WAVES [PDF]
Astrophysical Journal, 2015 Supernova generated shock waves are responsible for most of the destruction of dust grains in the interstellar medium (ISM). Calculations of the dust destruction timescale have so far been carried out using plane parallel steady shocks, however that approximation breaks down when the destruction timescale becomes longer than that for the evolution of ...
Jonathan D Slavin, Eli Dwek
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Inhibited destruction of dust by supernova in a clumpy medium
New Astronomy13 pages, 12 figures, New Astronomy in ...
Evgenii O Vasiliev, Svyatoslav Dedikov
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