Results 101 to 110 of about 5,625,011 (180)

Dust in Astrophysical Systems: Impacts on Dynamics, Plasma Physics, and Thermochemistry

The role of astrophysical dust is often simplified in models of galaxy and star formation, where it is typically treated as passively tracing the gas. However, dust actively influences the dynamics, thermodynamics, and observable properties of diverse ...
Soliman, Nadine Hany
core   +1 more source

EVIDENCE FOR ENVIRONMENTAL CHANGES IN THE SUBMILLIMETER DUST OPACITY [PDF]

, 2012
The submillimeter opacity of dust in the diffuse interstellar medium in the Galactic plane has been quantified using a pixel-by-pixel correlation of images of continuum emission with a proxy for column density.
David Hughes
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Small-Scale Dynamics of Dust in the Interstellar Medium

The interstellar medium is replete with microscopic, sub-micron-sized dust grains. These grains obscure and adulterate a wide variety of astrophysical observations.
Moseley, Eric Roger
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Magnetically Aligned Grains as a Ubiquitous Source of Spin-polarized Electrons and Chiral-symmetry-breaking Agents

The Astrophysical Journal
The unique biosignature of life on Earth is the homochirality of organic compounds, such as amino acids, proteins, and sugars. High-energy spin-polarized (spinup or spindown) electrons (SPEs) from the β decay of radioactive nuclei have been proposed as a
Thiem Hoang
doaj   +1 more source

Major factors influencing local dust radiative forcing [PDF]

, 2008
In conclusion, it is shown in this paper that surface albedo variations over desert regions can have a significant influence on the solar and net radiative forcing of desert dust.
Otto, Sebastian, Bierwirth, Eike, Bauer, Stefan, Trautmann, Thomas, Wendisch, Manfred   +4 more
core  

Tracing the History of Obscured Star Formation with the SIMBA Cosmological Galaxy Evolution Simulation

The Astrophysical Journal
We explore the cosmic evolution of the fraction of dust-obscured star formation predicted by the simba cosmological hydrodynamic simulations featuring an on-the-fly model for dust formation, evolution, and destruction.
Dhruv T. Zimmerman, Desika Narayanan, Katherine E. Whitaker, Romeel Davé   +3 more
doaj   +1 more source

Probing 3D Magnetic Fields Using Thermal Dust Polarization and Grain Alignment Theory

The Astrophysical Journal
Magnetic fields are ubiquitous in the Universe and are thought to play an important role in various astrophysical processes. Polarization of thermal emission from dust grains aligned with the magnetic field is widely used to measure the 2D magnetic field
Thiem Hoang, Bao Truong
doaj   +1 more source

Near-infrared [P II] and [Fe II] Emission-line Study of Supernova Remnants in the Magellanic Clouds

The Astronomical Journal
We report findings from near-infrared imaging observations of 17 young and middle-aged supernova remnants (SNRs) in the Magellanic Clouds to examine the impact of SNR shocks on dust destruction and the possible detection of supernova ejecta.
Rommy L. S. E. Aliste Castillo, Yong-Hyun Lee, Takuma Kokusho, Ho-Gyu Lee, Bon-Chul Koo, Hidehiro Kaneda, Takahiro Nagayama   +6 more
doaj   +1 more source

Formation of dust grains and dust emission processes

Dust plays a critical role in Earth\u27s biogeochemical cycles and is studied in two primary categories: atmospheric dust and dust deposits, including loess. The production of dust-sized (silt and clay) grains and the processes that result in atmospheric
Sweeney, Mark R.
core   +1 more source

Microwave Extinction Measurements of Aerosolized Interstellar Dust Analogs

, 2016
Interstellar dust plays an important role in astrophysical processes and ob- servational astronomy, and a thorough knowledge of its composition and optical properties is essential to astronomy. However, only very limited intact samples of interstellar
Scherrer, Joseph
core