Results 61 to 70 of about 437,551 (293)

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

Frontiers 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

Properties of interstellar wind leading to shape morphology of the dust surrounding HD 61005

, 2017
A structure formed by dust particles ejected from the debris ring around HD 61005 is observed in the scattered light. The main aim here is to constrain interstellar wind parameters that lead to shape morphology in the vicinity of HD 61005 using currently
Pastor, P.
core   +1 more source

Interstellar Absorption and Dust Scattering

, 2023
Invited chapter for the "handbook of X-ray and Gamma-ray Astrophysics" (Eds. C. Bambi and A. Santangelo, Springer Singapore, 2022).
Costantini, E., Corrales, L.
openaire   +3 more sources

Dust Masses, PAH Abundances, and Starlight Intensities in the SINGS Galaxy Sample [PDF]

, 2007
Physical dust models are presented for 65 galaxies in SINGS that are strongly detected in the four IRAC bands and three MIPS bands. For each galaxy we estimate (1) the total dust mass, (2) the fraction of the dust mass contributed by PAHs, and (3) the ...
A. Li, B. T. Draine, Bajaja E., Becker R., Boselli A., Boulanger F., C. Bot, C. W. Engelbracht, Colangeli L., D. A. Dale, D. Calzetti, D. J. Hollenbach, E. J. Murphy, F. Walter, G. Bendo, G. H. Rieke, G. Helou, H. I. Teplitz, H. Roussel, Habing H. J., J. D. T. Smith, J. Moustakas, K. D. Gordon, K. Sheth, Krugel E., Kurt C. M., L. Armus, Marconi A., Mathis J. S., Meurer G. R., Pagani L., R. C. Kennicutt, Jr., Reach W. T., Roche P. F., Rots A. H., Strong A. W., Sturm E., Voit G. M., Waters L. B. F. M., Whittet D. C. B., Zubko V. G.   +40 more
core   +2 more sources

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida, Farouk Hamza Reguig, Manuel Alcamí, Al Mokhtar Lamsabhi   +3 more
wiley   +1 more source

Modeling galactic extinction

Atti 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, G. Mulas, S. Casu, M.A. Iati', R. Saija, A. Cacciola, F. Borghese, P. Denti   +7 more
doaj   +1 more source

The cycling of carbon into and out of dust

, 2014
Observational evidence seems to indicate that the depletion of interstellar carbon into dust shows rather wide variations and that carbon undergoes rather rapid recycling in the interstellar medium (ISM).
Bocchio, Marco, Fanciullo, Lapo, Guillet, Vincent, Jones, Anthony, Jones, Anthony P., Köhler, Melanie, Micelotta, Elisabetta, Verstraete, Laurent, Ysard, Nathalie   +8 more
core   +2 more sources

Dust Measurements in the Outer Solar System [PDF]

, 1999
Dust measurements in the outer solar system are reviewed. Only the plasma wave instrument on board Voyagers 1 and 2 recorded impacts in the Edgeworth-Kuiper belt (EKB).
Grün, Eberhard, Krüger, Harald, Landgraf, Markus   +2 more
core   +2 more sources

Absorption and scattering by interstellar dust in the silicon K-edge of GX 5-1 [PDF]

, 2016
Context. We study the absorption and scattering of X-ray radiation by interstellar dust particles, which allows us to access the physical and chemical properties of dust. The interstellar dust composition is not well understood, especially on the densest
S. Zeegers, E. Costantini, C. Vries, A. Tielens, H. Chihara, F. Groot, H. Mutschke, L. Waters, S. Sron, L. Observatory, O. University, Debye Institute for Nanomaterials Science, A. Jena, Uva, Naoj   +14 more
semanticscholar   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source