Results 71 to 80 of about 5,588,447 (203)

Interstellar dust within the life cycle of the interstellar medium

, 2012
Cosmic dust is omnipresent in the Universe. Its presence influences the evolution of the astronomical objects which in turn modify its physical and chemical properties.
Demyk K., K. Demyk
core   +1 more source

SPHEREx 3.3 Micron Aromatic Emission in the Magellanic Clouds: Separating Dust Column, Excitation, and Environmental Suppression

The Astrophysical Journal
Bright emission in the 3.3 μ m unidentified infrared band (UIB), often described as an aromatic infrared band, can trace dust column, radiative excitation, or the survival and emissivity of its carriers.
Cheng Li
doaj   +1 more source

Laboratory analogs of interstellar carbonaceous dust: plasma deposition and energetic processing

, 2016
This work has been funded by the MCINN of Spain under grants FIS2013-48087-C2-1-P and the Consolider Astromol, CDS2009-00038. We thank also the European Research Council for additional support under ERC-2013-Syg 610256-NANOCOSMOS. MJR has received funding from the FPI program of the MCINN.
Maté, Belén, Tanarro, Isabel, Jiménez-Redondo, Miguel, Moreno, Miguel Ángel, Escribano, Rafael, Herrero, Víctor J.   +5 more
openaire   +4 more sources

Satellite stability and interstellar dust grain studies [PDF]

, 1971
Satellite stability and interstellar dust grain ...

core  

Mechanical Torque Disruption of Dust Grains Induced by Supernova Shock Waves

The Astrophysical Journal
The feedback from massive stars drives the evolution of interstellar dust grains by altering their physical properties via a number of radiative and mechanical processes.
Sergio Martínez-González
doaj   +1 more source

Engineering of Crystallinity to Amplify Chiroptical Activity of TiO2 Nanohelices for Enhancing Dissymmetric Circularly Polarized Photocatalysis

Advanced Functional Materials, Volume 36, Issue 61, 30 July 2026.
Enhancing crystallinity through thermal annealing leads to amplifying the chiroptical activity of TiO2 nanohelices (NHs) fabricated by glancing angle deposition, ascribed to the suppression of charge trapping. The enhanced chiroptical activity can be converted into pronounced dissymmetric photocatalytic kinetics of circularly polarized photocatalysis ...
Ying Wang, Lin Yang, Junjun Liu, Zhifeng Huang   +3 more
wiley   +1 more source

Analysis of "Midnight" Tracks in the Stardust Interstellar Dust Collector: Possible Discovery of a Contemporary Interstellar Dust Grain [PDF]

, 2010
In January 2006, the Stardust sample return capsule returned to Earth bearing the first solid samples from a primitive solar system body, Comet 81P/Wild2, and a collector dedicated to the capture and return of contemporary interstellar dust.
Brownlee, D. E., Floss, C., Burchell, M., Kearsley, A., Butterworth, A. L., Borg, J., Allen, C., Bridges, J., Bastien, R., Brenker, F., Grun, E., Gainsforth, Z., Westphal, A. J., Hudson, B., Bajit, S., Cloetens, P., Burghammer, M., Ferrior, T., Hoppe, P., Lai, B., Flynn, G. J., Bleuet, P., Frank, D., Cody, G., Bechtel, H.   +24 more
core  

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

The 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

Harnessing Generative AI Within Human‐Aligned Constraints: Exploring Control Strategies and Existential Considerations

Engineering Reports, Volume 8, Issue 7, July 2026.
We propose the Powerful‐but‐Limited Generative AI theorem, demonstrating that embedding human‐inspired constraints, such as fixed utility functions and neuro‐symbolic submission layers, ensures generative AI remains controllable by preventing self‐improvement beyond designer intent.
Saeed Banaeian Far, Mohammad Reza Chalak Qazani, Falah Younis Hamode Hamod, Azadeh Imani Rad   +3 more
wiley   +1 more source

METAL-Z: Measuring Dust Depletion in Low-metallicity Dwarf Galaxies

The Astrophysical Journal
The cycling of metals between interstellar gas and dust is a critical aspect of the baryon cycle of galaxies, yet our understanding of this process is limited. This study focuses on understanding dust depletion effects in the low-metallicity regime (
Aleksandra Hamanowicz, Kirill Tchernyshyov, Julia Roman-Duval, Edward B. Jenkins, Marc Rafelski, Karl D. Gordon, Yong Zheng, Miriam Garcia, Jessica Werk   +8 more
doaj   +1 more source