Results 11 to 20 of about 267,461 (212)

Interstellar dust within the life cycle of the interstellar medium

open access: yesEPJ Web of Conferences, 2012
Cosmic dust is omnipresent in the Universe. Its presence influences the evolution of the astronomical objects which in turn modify its physical and chemical properties.
Demyk K.
doaj   +2 more sources

ORGANIC DUST IN THE INTERSTELLAR MEDIUM [PDF]

open access: yesPublications of The Korean Astronomical Society, 2014
The traditional view of dust in the interstellar medium is that it is made of graphite and silicates. In this paper, we discuss the evidence for complex organics being a major component of interstellar dust. Comparison between astronomical infrared spectra and laboratory spectra of amorphous carbonaceous materials suggests that organics of mixed ...
Kwok, S, Sun Kwok
openaire   +7 more sources

Aliphatic hydrocarbon content of interstellar dust [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
In the interstellar medium, carbon is distributed between the gas and solid phases. However, while about half of the expected carbon abundance can be accounted for in the gas phase, there is considerable uncertainty as to the amount incorporated in interstellar dust.
Günay, B   +7 more
openaire   +6 more sources

The feasibility of using an L1 positioned dust cloud as a method of space-based geoengineering [PDF]

open access: yes, 2012
In this paper a method of geoengineering is proposed involving clouds of dust placed in the vicinity of the L1 point as an alternative to the use of thin film reflectors.
Bewick, Russell   +5 more
core   +4 more sources

High‐Pressure Carbonaceous Phases as Minerals

open access: yesGeophysical 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

Modeling Dust Production, Growth, and Destruction in Reionization-era Galaxies with the CROC Simulations: Methods and Parameter Exploration

open access: yesThe 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
doaj   +1 more source

Interstellar dust in galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1990
Current ideas about the nature of interstellar dust in galaxies are reviewed, with a strong emphasis on the nature of the very small grain component needed to explain the mid-infrared diffuse emission and unidentified infrared features. Models for the infrared spectra of galaxies are reviewed and the evidence that most of the radiation in star-forming ...
openaire   +1 more source

IAS/CEA Evolution of Dust in Nearby Galaxies (ICED): The spatially-resolved dust properties of NGC4254 [PDF]

open access: yesEPJ Web of Conferences
We present the first preliminary results of the project ICED, focusing on the face-on galaxy NGC4254. We use the millimetre maps observed with NIKA2 at lRAM-30m. as part of the IMEGIN Guaranteed Time Large Program.
Pantoni L.   +59 more
doaj   +1 more source

Catalytic Role of Refractory Interstellar Grain Analogs on H2 Formation

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Refractory dust grains have an important role to play in the chemistry of star and planet-forming regions. Their surfaces interact with interstellar gas and act as a catalyst for the formation of simple and complex molecules in space.
Tushar Suhasaria, Vito Mennella
doaj   +1 more source

Interstellar dust close to the Sun [PDF]

open access: yesEarth, Planets and Space, 2013
The low density interstellar medium (ISM) close to the Sun and inside of the heliosphere provides a unique laboratory for studying interstellar dust grains. Grain characteristics in the nearby ISM are obtained from observations of interstellar gas and dust inside of the heliosphere and the interstellar gas towards nearby stars.
Frisch, Priscilla C.   +1 more
openaire   +2 more sources

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