Updated Gaia-2MASS 3D maps of Galactic interstellar dust [PDF]
Astronomy & Astrophysics, 2022 Three-dimensional (3D) maps of Galactic interstellar dust are a tool for a wide range of uses. We aim to construct 3D maps of dust extinction in the Local Arm and surrounding regions.
R. Lallement +3 more
semanticscholar +1 more source
The Astrodust+PAH Model: A Unified Description of the Extinction, Emission, and Polarization from Dust in the Diffuse Interstellar Medium [PDF]
Astrophysical Journal, 2022 We present a new model of interstellar dust in which large grains are a single composite material, “astrodust,” and nanoparticle-sized grains come in distinct varieties including polycyclic aromatic hydrocarbons (PAHs). We argue that a single-composition
B. Hensley, B. Draine
semanticscholar +1 more source
Observational Constraints on the Physical Properties of Interstellar Dust in the Post-Planck Era [PDF]
Astrophysical Journal, 2020 We present a synthesis of the astronomical observations constraining the wavelength-dependent extinction, emission, and polarization from interstellar dust from UV to microwave wavelengths on diffuse Galactic sight lines.
B. Hensley, B. Draine
semanticscholar +1 more source
Magnesium and silicon in interstellar dust: X-ray overview [PDF]
Astronomy & Astrophysics, 2020 Context.The dense Galactic environment is a large reservoir of interstellar dust. Therefore, this region represents a perfect laboratory to study the properties of cosmic dust grains. X-rays are the most direct way to detect the interaction of light with
D. Rogantini +7 more
semanticscholar +1 more source
Atomistic Modeling of Methyl Formate and Glycolaldehyde Formation on Interstellar Dirty Ice Mantles via a "Radical + Ice" Mechanism. [PDF]
ChempluschemThe presence of interstellar complex organic molecules (COMs) has been baffling astrochemists for a long time. Methyl formate and glycolaldehyde are widely detected but their abundances mismatch kinetic astrochemical model predictions. Here, the formation of these two COMs is characterized onto a mixed ice surface, highlighting the importance of ...
Perrero J +3 more
europepmc +2 more sources
Dust evolution, a global view I. Nanoparticles, nascence, nitrogen and natural selection … joining the dots [PDF]
Royal Society Open Science, 2016 The role and importance of nanoparticles for interstellar chemistry and beyond is explored within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), focusing on their active surface chemistry, the effects of ...
A. P. Jones
doaj +1 more source
Gaia-2MASS 3D maps of Galactic interstellar dust within 3 kpc [PDF]
Astronomy & Astrophysics, 2019 Gaia stellar measurements are currently revolutionizing our knowledge of the evolutionary history of the Milky Way. 3D maps of the interstellar dust provide complementary information and are a tool for a wide range of uses.
R. Lallement +7 more
semanticscholar +1 more source
Dust evolution, a global view: III. Core/mantle grains, organic nano-globules, comets and surface chemistry [PDF]
Royal Society Open Science, 2016 Within the framework of The Heterogeneous dust Evolution Model for Interstellar Solids (THEMIS), this work explores the surface processes and chemistry relating to core/mantle interstellar and cometary grain structures and their influence on the nature ...
A. P. Jones
doaj +1 more source
Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era [PDF]
, 2006 IR emission spectra are calculated for dust heated by starlight, for mixtures of amorphous silicate and graphitic grains, including varying amounts of PAH particles. The models are constrained to reproduce the average Milky Way extinction curve.
B. Draine, Aigen Li
semanticscholar +1 more source
The Astrophysical Journal Supplement Series, 2022 We have obtained accurate dust reddening from the far-ultraviolet to the mid-infrared for up to 5 million stars by the star-pair algorithm based on LAMOST stellar parameters along with Galaxy Evolution Explorer, Pan-STARRS 1, Gaia, Sloan Digital Sky ...
Ruoyi Zhang, Haibo Yuan
doaj +1 more source