Results 151 to 160 of about 427,113 (273)

Evidence for Spatially Distinct Galactic Dust Populations

open access: yesThe Astrophysical Journal
We present an implementation of a Bayesian mixture model using Hamiltonian Monte Carlo techniques to search for the spatial separation of Galactic dust populations. Utilizing intensity measurements from the Planck High Frequency Instrument, we apply this
Corwin Shiu   +7 more
doaj   +1 more source

The Spheroidal Analog Method for Modeling Irregular Porous Aggregates

open access: yesThe Astrophysical Journal
It is shown that the optical properties of an irregular porous grain with effective radius a _eff  ≲ 3 λ (where λ is the wavelength) can be well approximated by a “spheroidal analog”: a spheroid with appropriate axial ratio and size, with a dielectric ...
B. T. Draine
doaj   +1 more source

Temperature Fluctuations and Evolution of Dust Grains in Dense Interstellar Clouds [PDF]

open access: bronze, 1987
S. Aiello   +5 more
openalex   +1 more source

H$_2$ formation on interstellar dust grains: the viewpoints of theory, experiments, models and observations [PDF]

open access: yes, 2017
V. Wakelam   +14 more
semanticscholar   +1 more source

Modeling Dust Production, Growth, and Destruction in Reionization-era Galaxies with the CROC Simulations. II. Predicting the Dust Content of High-redshift Galaxies

open access: yesThe Astrophysical Journal
We model the interstellar dust content of the reionization era with a suite of cosmological, fluid-dynamical simulations of galaxies with stellar masses ranging from ∼10 ^5 to 10 ^9 M _⊙ in the first 1.2 Gyr of the Universe.
Clarke J. Esmerian, Nickolay Y. Gnedin
doaj   +1 more source

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