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Related papers: Dust evolution, a global view: III. Core/mantle gr…

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The origin of the diffuse interstellar bands is one of the longest-standing mysteries of the interstellar medium is explored within the framework of The Heterogeneous dust Evolution Model at the IaS (THEMIS). The likely nature of the…

Astrophysics of Galaxies · Physics 2021-11-09 A. P. Jones

The role and importance of nano-particles for interstellar chemistry and beyond is explored within the framework of The Heterogeneous dust Evolution Model at the IaS (THEMIS), focussing on their active surface chemistry (nascence), the…

Astrophysics of Galaxies · Physics 2021-11-09 A. P. Jones

Observational evidence seems to indicate that the depletion of interstellar carbon into dust shows rather wide variations and that carbon undergoes rather rapid recycling in the interstellar medium (ISM). Small hydrocarbon grains are…

Context. The abundances of many observed compounds in interstellar molecular clouds still lack an explanation, despite extensive research that includes both gas and solid (dust-grain surface) phase reactions. Aims. We aim to qualitatively…

Astrophysics of Galaxies · Physics 2012-07-12 Juris Kalvans , Ivar Shmeld

Context. The observed cloudshine and coreshine (C-shine) have been explained in terms of grain growth leading to enhanced scatter- ing from clouds in the J, H and K photometric bands and the Spitzer IRAC 3.6 and 4.5 {\mu}m bands. Aims.…

Astrophysics of Galaxies · Physics 2016-03-23 A. P. Jones , M. Koehler , N. Ysard , E. Dartois , M. Godard , L. Gavilan

This work is an attempt to tie together some of the, seemingly disparate, loose ends from the preceding papers in this series into the global view of dust evolution in the interstellar medium. In particular, the nature of the…

Astrophysics of Galaxies · Physics 2018-05-01 A. P. Jones

Many dense interstellar clouds are observable in emission in the near-IR, commonly referred to as "Cloudshine", and in the mid-IR, the so-called "Coreshine". These C-shine observations have usually been explained with grain growth but no…

Astrophysics of Galaxies · Physics 2016-03-16 N. Ysard , M. Koehler , A. P. Jones , E. Dartois , M. Godard , L. Gavilan

We discuss the connection between the chemistry of dense interstellar clouds and those characteristics of cometary matter that could be remnants of it. The chemical evolution observed to occur in molecular clouds is summarized and a model…

Astrophysics · Physics 2017-08-02 S. B. Charnley , S. D. Rodgers

Here we introduce the interstellar dust modelling framework THEMIS (The Heterogeneous dust Evolution Model for Interstellar Solids), which takes a global view of dust and its evolution in response to the local conditions in interstellar…

Astrophysics of Galaxies · Physics 2017-06-07 A. P. Jones , M. Koehler , N. Ysard , M. Bocchio , L. Verstraete

Dust grains play a central role in the physics and chemistry of cosmic environments. They influence the optical and thermal properties of the medium due to their interaction with stellar radiation; provide surfaces for the chemical…

Astrophysics of Galaxies · Physics 2021-05-05 Alexey Potapov , Martin McCoustra

The past century of interstellar dust has brought us from first ignoring it to finding that it plays an important role in the evolution of galaxies. Current observational results in our galaxy provide a complex physical and chemical…

Astrophysics · Physics 2009-10-31 J. Mayo Greenberg , Chuanjian Shen

We develop a model of dust evolution in a multiphase, inhomogeneous ISM including dust growth and destruction processes. The physical conditions for grain evolution are taken from hydrodynamical simulations of giant molecular clouds in a…

Astrophysics of Galaxies · Physics 2016-11-09 Svitlana Zhukovska , Clare Dobbs , Edward B. Jenkins , Ralf Klessen

The wavelength dependences of interstellar extinction and polarization, supplemented by observed elemental abundances and the spectrum of infrared emission from dust heated by starlight, strongly constrain dust models. One dust model that…

Astrophysics of Galaxies · Physics 2009-03-11 B. T. Draine

Dust grains play a crucial role in the modeling of protostellar formation, particularly through their opacity and interaction with the magnetic field. The destruction of dust grains in numerical simulations is currently modeled primarily by…

Astrophysics of Galaxies · Physics 2025-02-05 Antonin Borderies , Benoît Commerçon , Bernard Bourdon

We study the effects of grain surface reactions on the chemistry of protoplanetary disks where gas, ice surface layers and icy mantles of dust grains are considered as three distinct phases. Gas phase and grain surface chemistry is found to…

Astrophysics of Galaxies · Physics 2020-01-08 Maxime Ruaud , Uma Gorti

There is a long-standing discussion in the astrophysical/astrochemical community as to the structure and morphology of dust grains in various astrophysical environments (e.g., interstellar clouds, protostellar envelopes, protoplanetary and…

Dust grains are the building {blocks} of future planets. They evolve in size, shape and composition during the life cycle of the interstellar medium. We seek to understand the process which leads from diffuse medium grains to dust grains in…

Astrophysics of Galaxies · Physics 2020-02-12 Charlène Lefèvre , Laurent Pagani , Bilal Ladjelate , Michiel Min , Hiroyuki Hirashita , Robert Zylka

In the interstellar medium, carbon (nano-)grains are a major component of interstellar dust. This solid phase is more vulnerable to processing and destruction than its silicate counterpart. It exhibits a complex, size-dependent evolution…

Astrophysics of Galaxies · Physics 2019-03-20 T. Boutéraon , E. Habart , N. Ysard , A. P. Jones , E. Dartois , T. Pino

This article gives an overview of the constitution, physical conditions and observables of dust in the interstellar medium of nearby galaxies. We first review the macroscopic, spatial distribution of dust in these objects, and its…

Astrophysics of Galaxies · Physics 2022-08-10 F. Galliano , M. Galametz , A. P. Jones

Interstellar dust is a significant component of matter in the galaxies. The dust owns its origin and reprocessing in a wide range of astrophysical environments. In order to understand the origin and evolution of the distinct types of…

Solar and Stellar Astrophysics · Physics 2020-04-24 Anuj Gupta , Sandeep Sahijpal
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