Results 51 to 60 of about 2,805 (218)

Interstellar grains: Effect of inclusions on extinction [PDF]

Earth, Planets and Space, 2011
A composite dust grain model which simultaneously explains the observed interstellar extinction, polarization, IR emission and the abundance constraints, is required. We present a composite grain model, which is made up of a host silicate oblate spheroid and graphite inclusions.
Katyal, Nisha, Gupta, Ranjan, Vaidya, D. B.   +2 more
openaire   +2 more sources

Extinction of Taurus, Orion, Perseus, and California Molecular Clouds Based on the LAMOST, 2MASS, and Gaia Surveys. I. 3D Extinction and Structure

The Astrophysical Journal, 2023
The 3D extinction and structure are studied for the Taurus, Orion, Perseus, and California molecular clouds based on the LAMOST spectroscopy. Stellar color excess is calculated with the intrinsic color index derived from the atmospheric parameters in the
ZheTai Cao, Biwei Jiang, He Zhao, Mingxu Sun   +3 more
doaj   +1 more source

Ultraviolet Interstellar Extinction toward High Galactic Latitudes

The Astrophysical Journal
Nearby high Galactic latitude clouds provide a unique laboratory to study the physics and structure of the Galactic interstellar medium and the properties of the interstellar dust.
Ajay Mishra, Aigen Li
doaj   +1 more source

Contribution of PAHs to the Interstellar Extinction Curve [PDF]

Symposium - International Astronomical Union, 1992
Absorption spectra of some gaseous PAHs, either pure species or natural mixtures, have been obtained in the VUV-visible region and compared to the interstellar extinction curve.The assumption that free PAHs are ubiquitous in the ISM cannot be rejected by incompatibility between the interstellar extinction curve and the absorption spectra of such ...
C. Joblin, A. Leger, P. Martin, D. Defourneau   +3 more
openaire   +1 more source

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

Journal of Field Robotics, Volume 43, Issue 4, Page 2553-2584, June 2026.
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

VUV spectroscopy of carbon dust analogs: contribution to interstellar extinction [PDF]

, 2016
Context. A full spectral characterization of carbonaceous dust analogs is necessary to understand their potential as carriers of observed astronomical spectral signatures such as the ubiquitous UV bump at 217.5 nm and the far-ultraviolet (FUV) rise ...
Le, K. C., L. Gavilan, A. Giuliani, T. Pino, Gavilan, L., E. Dartois, Alata, I., K. C. Le, Giuliani, A., Dartois, E., Pino, T., I. Alata   +11 more
core   +1 more source

Light‐Activated Protein‐Imprinted Hydrogels Capable of Translating Protein Surface Accessibility Into Missing‐Peptide Footprints

Small Structures, Volume 7, Issue 6, June 2026.
Light‐activated protein‐imprinted PFPA‐functionalized hydrogels crosslink captured proteins and report protein surface accessibility as missing‐peptide patterns readable by standard LC‐MS/MS. Mass spectrometry (MS)‐based structural proteomics can reveal higher‐order structural features in complex biological samples, but many covalent footprinting and ...
Eisuke Kanao, Taichi Nihei, Kankichi Kako, Asato Maeda, Damla Ulker, Hiroshi Nishida, Kosuke Ogata, Mingdi Yan, Sergey Piletsky, Yasushi Ishihama, Takuya Kubo   +10 more
wiley   +1 more source

Polarization‐Selective Metamaterial Absorber for Long‐ to Very Long‐Wavelength Infrared Broadband

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Broadband and polarization‐selective metamaterial absorbers for long‐ to very long‐wavelength infrared light with high extinction ratios are designed and demonstrated, which provide a new method for broadband polarization‐selective absorbers. ABSTRACT Metamaterial absorbers have received extensive research interest and sustained attention due to their ...
Zhe Wu, Zhongzhu Liang, Xiaoyan Shi, Fuming Yang, Siyu Guo, Jihui Jiang, Wenwen Sun, Xintong Wei, Bing Sun, David R. Smith, Haiyang Xu   +10 more
wiley   +1 more source

Grain growth, optical polarisation, and extinction in interstellar clouds [PDF]

, 1989
Increases in the wavelength of maximum polarization and the ratio of total to selective extinction are generally assumed to be the result of grain growth in interstellar clouds.
Jones, A. P.
core   +1 more source

The smoothness of the interstellar extinction curve in the UV [PDF]

, 2012
Context. As revealed by high-resolution spectral investigations in the wavelength range between 300 and 400 nm, the interstellar extinction curve does not display any of the sharp electronic absorption bands that are characteristic for large polyatomic ...
M. Steglich, Y. Carpentier, C. Jäger, Th. Henning, H.-J. Räder, F. Huisken   +5 more
core   +1 more source