Results 41 to 50 of about 372,210 (210)

Parameterizing the interstellar dust temperature [PDF]

open access: yes, 2017
The temperature of interstellar dust particles is of great importance to astronomers. It plays a crucial role in the thermodynamics of interstellar clouds, because of the gas-dust collisional coupling.
S. Hocuk   +6 more
semanticscholar   +1 more source

The nature of interstellar dust as revealed by light scattering

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
Interstellar dust was first identified through the extinction that it causes of optical starlight. Initially, observational and theoretical studies of extinction were made to identify simple ways of removing the effect of extinction.
D. A. Williams
doaj   +1 more source

The Power of the Rings: The GRB 221009A Soft X-Ray Emission from Its Dust-scattering Halo

open access: yesThe Astrophysical Journal Letters, 2023
GRB 221009A is the brightest gamma-ray burst (GRB) ever detected that has occurred at low Galactic latitude. Owing to this exceptional combination, its prompt X-ray emission could be detected for weeks in the form of expanding X-ray rings produced by ...
Andrea Tiengo   +13 more
doaj   +1 more source

Dust evolution in pre-stellar cores [PDF]

open access: yesEPJ Web of Conferences, 2020
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 the vicinity of
Lefèvre Charlène   +5 more
doaj   +1 more source

SpeX Near-infrared Spectroscopic Extinction Curves in the Milky Way

open access: yesThe Astrophysical Journal, 2022
Interstellar dust extinction curves provide valuable information about dust properties, including the composition and size of the dust grains, and are essential to correct observations for the effects of interstellar dust.
Marjorie Decleir   +9 more
doaj   +1 more source

Recent progress in theory and observational study of dust grain alignment and rotational disruption in star-forming regions

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Modern understanding of dust astrophysics reveals that radiative torques (RATs) arising from the radiation–dust interaction can induce two fundamental effects: grain alignment and rotational disruption.
Le Ngoc Tram, Thiem Hoang, Thiem Hoang
doaj   +1 more source

Investigating the interstellar dust through the Fe K-edge [PDF]

open access: yes, 2017
Context. The chemical and physical properties of interstellar dust in the densest regions of the Galaxy are still not well understood. X-rays provide a powerful probe since they can penetrate gas and dust over a wide range of column densities (up to 1024
D. Rogantini   +15 more
semanticscholar   +1 more source

Thermal and non-thermal dust sputtering in hydrodynamical simulations of the multiphase interstellar medium [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We study the destruction of interstellar dust via sputtering in supernova (SN) shocks using three-dimensional hydrodynamical simulations. With a novel numerical framework, we follow both sputtering and dust dynamics governed by direct collisions, plasma ...
Chia-Yu Hu   +3 more
semanticscholar   +1 more source

Modeling galactic extinction

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
We present a model for interstellar extinction dust, in which we assume a bimodal distribution of extinction carriers, a dispersion of core-mantle grains, supplemented by a collection of PAHs in free molecular form.
C. Cecchi-Pestellini   +7 more
doaj   +1 more source

More than 30 000 volunteers involved in identification of tiny rare interstellar dust particle candidates collected by the Stardust mission

open access: yesHeidelberger Jahrbücher Online, 2017
The NASA Stardust mission returned the first tiny samples of interstellar dust from beyond the borders of our solar system. This region is almost devoid of matter and the interstellar dust particles floating through our solar system are extremely rare ...
Andrew J. Westphal, Mario Trieloff
doaj   +1 more source

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