Results 11 to 20 of about 5,588,447 (203)
Meteorites and cosmic dust: Interstellar heritage and nebular processes in the early solar system [PDF]
EPJ Web of Conferences, 2012 Small solar system bodies like asteroids and comets have escaped planetary accretion. They are the oldest and best preserved witnesses of the formation of the solar system.
Engrand C.
doaj +4 more sources
Interstellar Dust Production, Destruction and Effects of Dust Depletion in Galaxies
GalaxiesDespite the small mass fraction typically observed for the interstellar medium, dust plays a significant role as a key component of galaxies, affecting a wide range of properties. This review focuses specifically on how dust grains influence interstellar
Francesco Calura
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Supernova induced processing of interstellar dust: impact of interstellar medium gas density and gas turbulence [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Quantifying the efficiency of dust destruction in the interstellar medium (ISM) due to supernovae (SNe) is crucial for the understanding of galactic dust evolution. We present 3D hydrodynamic simulations of an SN blast wave propagating through the ISM.
Florian Kirchschlager +2 more
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The Rich Chemistry of Ionized Methanol With Sulfur Dioxide: Pathways to Prebiotic and Elusive Species in Earth's Atmosphere and Space. [PDF]
ChemistryThe reaction between the methanol radical cation and sulfur dioxide is remarkably fast and forms several ionic and neutral products (HOSOH+, CH2OSO+, CH2OH+, CH2O, H2O, HSO2). The chemistry goes beyond simple proton or hydrogen transfer, revealing a close interaction between the two species, relevant to atmospheric and astrochemical environments where ...
Satta M +3 more
europepmc +2 more sources
Dust as interstellar catalyst [PDF]
Astronomy & Astrophysics, 2015 Context. The presence of dust in the interstellar medium has profound consequences on the chemical composition of regions where stars are forming. Recent observations show that many species formed onto dust are populating the gas phase, especially in cold environments where UV and CR induced photons do not account for such processes. Aims.
Minissale, M. +3 more
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PROCESSING OF INTERSTELLAR DUST GRAINS IN GALAXIES [PDF]
Publications of The Korean Astronomical Society, 2012 We have performed a systematic study of interstellar dust grains in various environments of galaxies. AKARI has revealed the detailed properties of dust grains not only in star-forming regions but also in regions not relevant to star formation, some of which are found not to follow our old empirical knowledge.
H. Kaneda +8 more
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Material Processing of Interstellar Dust in Comets [PDF]
Highlights of Astronomy, 2005 AbstractTo better understand the processing of pristine materials in comets, we compare the composition of cometary and interstellar dust. We suggest that the deficit of N in comet dust bears evidence for the processing of the organic refractory mantle of pre-solar interstellar dust, unless it arises from the protosolar disk chemistry.
Hiroshi Kimura, Ingrid Mann
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Plasma generation and processing of interstellar carbonaceous dust analogs [PDF]
Plasma Sources Science and Technology, 2018 Abstract Interstellar (IS) dust analogs, based on amorphous hydrogenated carbon (a-C:H) were generated by plasma deposition in radio frequency discharges of CH 4 + He mixtures.
R J Peláez +7 more
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Shock Processing of Interstellar Dust and Polycyclic Aromatic Hydrocarbons in the Supernova Remnant N132D [PDF]
The Astrophysical Journal, 2006 We observed the oxygen-rich Large Magellanic Cloud (LMC) supernova remnant N132D (SNR 0525-69.6), using all instruments onboard the Spitzer Space Telescope, IRS, IRAC, and MIPS (Infrared Spectrograph, Infrared Array Camera, Multiband Imaging Photometer for Spitzer). The 5-40 micron IRS spectra toward the southeastern shell of the remnant show a steeply
Tappe, A., Rho, J., Reach, W. T.
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Processing of Interstellar Dust Grains in Galaxies Revealed by AKARI [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractWith AKARI, we have performed a systematic study of interstellar dust grains in various environments of galaxies. In many cases, the IR emission of dust is an important tool to trace star-forming activities in galaxies. However it is much more than just star-formation tracers. AKARI has revealed the detailed properties of dust grains in regions
Hidehiro Kaneda +8 more
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