Results 11 to 20 of about 2,295,415 (356)

Mid Infrared Polarisation of Ultraluminous Infrared Galaxies [PDF]

Astronomy & Astrophysics, 2001
The mid infrared polarisation properties of four Ultraluminous Infrared Galaxies (ULIRGs) have been investigated by broad band filter observations with the ISOCAM instrument on board the Infrared Space Observatory (ISO).
A. Efstathiou, Antonucci, Antonucci, Barger, Carilli, Cesarsky, Clavel, Downes, Efstathiou, Efstathiou, Efstathiou, Genzel, Goldader, Gonatas, Granato, Greaves, Haas, Hall, Heisler, Hildebrand, Hiltner, Hughes, Jones, Kawara, Kessler, Koningl, Krolik, Krügel, Leach, Minchin, Novak, Ott, Pier, Puget, R. Siebenmorgen, Rigopoulou, Sanders, Sargent, Siebenmorgen, Siebenmorgen, Skinner, Smith, Smith, Soifer, Sopp, Veilleux, Ward-Thompson   +46 more
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Infrared Spectroscopy—Mid-infrared, Near-infrared, and Far-infrared/Terahertz Spectroscopy

Analytical Sciences, 2021
This article aims to overview infrared (IR) spectroscopy. Simultaneously, it outlines mid-infrared (MIR), near-infrared (NIR), and far-infrared (FIR) or terahertz (THz) spectroscopy separately, and compares them in terms of principles, characteristics, advantages, and applications.
openaire   +3 more sources

Infrared analysis of propagators and vertices of Yang--Mills theory in Landau and Coulomb gauge [PDF]

, 2006
The infrared behaviour of gluon and ghost propagators, ghost-gluon vertex and three-gluon vertex is investigated for both the covariant Landau and the non-covariant Coulomb gauge.
H. Reinhardt, M. Leder, N. H. Christ, W. Schleifenbaum   +3 more
core   +2 more sources

High efficiency and fast van der Waals hetero-photodiodes with a unilateral depletion region

Nature Communications, 2019
Photovoltaic devices based on 2D materials still suffer from low quantum efficiencies due to interfacial charge recombination and inefficient contacts.
Feng Wu, Qing Li, Peng Wang, Hui Xia, Zhen Wang, Yang Wang, Man Luo, Long Chen, Fansheng Chen, Jinshui Miao, Xiaoshuang Chen, Wei Lu, Chongxin Shan, Anlian Pan, Xing Wu, Wencai Ren, Deep Jariwala, Weida Hu   +17 more
doaj   +1 more source

High-Discrimination Circular Polarization Detection Based on Dielectric-Metal-Hybrid Chiral Metamirror Integrated Quantum Well Infrared Photodetectors

Sensors, 2022
Circular polarization detection enables a wide range of applications. With the miniaturization of optoelectronic systems, integrated circular polarization detectors with native sensitivity to the spin state of light have become highly sought after.
Jinyong Shen, Tianyun Zhu, Jing Zhou, Zeshi Chu, Xiansong Ren, Jie Deng, Xu Dai, Fangzhe Li, Bo Wang, Xiaoshuang Chen, Wei Lu   +10 more
doaj   +1 more source

ISO continuum observations of quasars at z=1-4 I.Spectral energy distributions of quasars from the UV to far-infrared [PDF]

, 2000
Eight luminous quasars with $ -30 < M_B < -27$ at z = 1.4 - 3.7 have been observed in the mid- and far-infrared using ISO. All the quasars have been detected in the mid-infrared bands of ISOCAM, while no far-infrared detections have been made with ...
Andreani, Andreani, Bechtold, Benford, Bertin, Bloom, C. Gabriel, Carilli, Carilli, Casali, Cesarsky, Chini, Chini, Dunlop, E. Nishihara, Elvis, Green, Guilloteau, Guilloteau, H. Okuda, H. Shibai, Haas, Hamann, Herbstmeier, Hughes, Impey, Irwin, Isaak, Ivison, K. Kawara, Kawara, Kawara, Kessler, Kneib, Kobayashi, Kormann, Landolt, Lemke, Lichti, Magain, Matsuhara, McMahon, Neugebauer, Neugebauer, Ohta, Omont, Omont, Osmer, Pier, Puget, Richards, Rowan-Robinson, S. Oyabu, Sanders, Schneider, Starck, T. Hasegawa, Taniguchi, Y. Sato, Y. Sofue, Y. Taniguchi, Y. Tsuzuki, Yoshii   +62 more
core   +2 more sources

Spitzer Observations of GX17+2: Confirmation of a Periodic Synchrotron Source [PDF]

, 2011
GX17+2 is a low-mass X-ray binary (LMXB) that is also a member of a small family of LMXBs known as "Z-sources" that are believed to have persistent X-ray luminosities that are very close to the Eddington limit. GX17+2 is highly variable at both radio and
Bornak, Jillian, Gelino, Christopher R., Gelino, Dawn M., Harrison, Thomas E., McNamara, Bernard J., Rupen, Michael P., Wachter, Stefanie   +6 more
core   +1 more source

INFRARED QCD [PDF]

International Journal of Modern Physics E, 2009
We prove that Nambu–Jona-Lasinio model is an exact description of infrared Quantum ChromoDynamics (QCD) deriving it from QCD Lagrangian. The model we obtain is renormalizable and confining but, taking very small momenta fixes completely all the parameters of the Nambu–Jona-Lasinio model through those of QCD.
openaire   +2 more sources

High Resolution Mid-Infrared Imaging of Ultraluminous Infrared Galaxies [PDF]

, 1999
Observations of ultraluminous infrared galaxies (ULIRGs) with an achieved resolution approaching the diffraction limit in the mid-infrared from 8 - 25 $\mu$m using the Keck Telescopes are reported.
A. J. Weinberger, A. S. Evans, B. T. Soifer, Boksenberg A., E. E. Becklin, E. Egami, Elias H., G. Neugebauer, J. A. Surace, J. J. Condon, K. Matthews, M. Ressler, M. W. Werner, Martin J. M., N. Z. Scoville, Werner M. W.   +15 more
core   +4 more sources

Velocity Estimation for Space Infrared Dim Targets Based on Multi-Satellite Observation and Robust Locally Weighted Regression

Remote Sensing, 2023
Velocity estimation of space moving targets is a key part of space situational awareness. However, most of the existing methods do not consider the satellite observation process, and the performance mainly depends on the preset target motion state, which
Shenghao Zhang, Peng Rao, Hao Zhang, Xin Chen   +3 more
doaj   +1 more source