Results 21 to 30 of about 372,210 (210)

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

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

A Dynamical Constraint on Interstellar Dust Models from Radiative Torque Disruption [PDF]

open access: yesAstrophysical Journal, 2018
Interstellar dust is an essential component of the interstellar medium (ISM) and plays critical roles in astrophysics. Achieving an accurate model of interstellar dust is therefore of great importance.
Thiem C. Hoang
semanticscholar   +1 more source

Interstellar dust in the solar system: model versus in situ spacecraft data [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. In the early 1990s, contemporary interstellar dust penetrating deep into the heliosphere was identified with the in situ dust detector on board the Ulysses spacecraft.
H. Kruger   +5 more
semanticscholar   +1 more source

X-ray extinction from interstellar dust [PDF]

open access: yesAstronomy & Astrophysics, 2019
Aims. We present a study on the prospects of observing carbon, sulfur, and other lower abundance elements (namely Al, Ca, Ti, and Ni) present in the interstellar medium using future X-ray instruments.
E. Costantini   +20 more
semanticscholar   +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

Dust evolution, a global view: II. Top-down branching, nanoparticle fragmentation and the mystery of the diffuse interstellar band carriers [PDF]

open access: yesRoyal Society Open Science, 2016
The origin of the diffuse interstellar bands (DIBs), one of the longest-standing mysteries of the interstellar medium (ISM), is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS). The likely nature of
A. P. Jones
doaj   +1 more source

Chemical Kinetics Simulations of Ice Chemistry on Porous Versus Non-Porous Dust Grains

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The degree of porosity in interstellar dust-grain material is poorly defined, although recent work has suggested that the grains could be highly porous.
Drew A. Christianson   +2 more
doaj   +1 more source

Heliospheric modulation of the interstellar dust flow on to Earth [PDF]

open access: yesAstronomy & Astrophysics, 2018
Aims. Based on measurements by the Ulysses spacecraft and high-resolution modelling of the motion of interstellar dust (ISD) through the heliosphere we predict the ISD flow in the inner planetary system and on to the Earth.
P. Strub   +5 more
semanticscholar   +1 more source

The Interstellar Dust Properties of Nearby Galaxies [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2017
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 consequences for our ...
F. Galliano   +4 more
semanticscholar   +1 more source

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