Plasma generation and processing of interstellar carbonaceous dust analogs [PDF]
Plasma Sources Science and Technology, 2018 Interstellar (IS) dust analogs, based on amorphous hydrogenated carbon (a-C:H) were generated by plasma deposition in RF discharges of CH4 + He mixtures. The a-C:H samples were characterized by means of secondary electron microscopy (SEM), infrared (IR) spectroscopy and UV-visible reflectivity.
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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Proceedings of the Japan Academy, Series B, 2023 Molecular clouds (MCs) in space are the birthplace of various molecular species. Chemical reactions occurring on the cryogenic surfaces of cosmic icy dust grains have been considered to play important roles in the formation of these species. Radical reactions are crucial because they often have low barriers and thus proceed even at low temperatures ...
TSUGE, Masashi, WATANABE, Naoki
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Consequences of the Solar System passage through dense interstellar clouds [PDF]
Annales Geophysicae, 2003 Several consequences of the passage of the solar system through dense interstellar molecular clouds are discussed. These clouds, dense (more than 100 cm-3), cold (10–50 K) and extended (larger than 1 pc), are characterized by a gas-to-dust mass ...
A. G. Yeghikyan +2 more
doaj +1 more source
High‐Pressure Carbonaceous Phases as Minerals
Geophysical Monograph Series, Page 11-23., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley +1 more source
The Astrophysical Journal Supplement Series, 2023 Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars.
Juan Carlos Gómez Martín +10 more
doaj +1 more source
INVESTIGATION OF CARBONACEOUS INTERSTELLAR DUST ANALOGUES BY INFRARED SPECTROSCOPY: EFFECTS OF ENERGETIC PROCESSING [PDF]
Proceedings of the 70th International Symposium on Molecular Spectroscopy, 2015 Carbonaceous compounds, both solids and gas-phase molecules, are found in very diverse astronomical mediaa. A significant amount of the elemental carbon is found in small dust grains. This carbonaceous dust, mostly formed in the last stages of evolution of C-rich stars, is the carrier of characteristic IR absorption bands revealing the presence of ...
Belén Maté +3 more
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The Role of Benzonitrile Chlorination Explored by Dissociative Electron Attachment. [PDF]
ChemphyschemExperimental and theoretical dissociative electron attachment study of 2‐ and 4‐chlorobenzonitrile. The dissociative electron attachment process to ortho‐ and para‐chlorobenzonitrile was investigated in the 0–12 eV energy range with a crossed‐beam time‐of‐flight mass spectrometer, supported by quantum chemical scattering calculations.
Guerra P +5 more
europepmc +2 more sources
Internal and External Alignment of Carbonaceous Grains within the Radiative Torque Paradigm
The Astrophysical Journal, 2023 We study the internal and external alignment of carbonaceous grains in the interstellar medium (ISM) within the Radiative Torque (RAT) paradigm.
Thiem Hoang +2 more
doaj +1 more source