Results 31 to 40 of about 5,123 (230)

Surveying the Giant H ii Regions of the Milky Way with SOFIA: V. DR7 and K3-50

The Astrophysical Journal, 2023
We present our fifth set of results from our mid-infrared imaging survey of Milky Way Giant H ii (GH ii ) regions with our detailed analysis of DR7 and K3-50.
James M. De Buizer, Wanggi Lim, James T. Radomski, Mengyao Liu   +3 more
doaj   +1 more source

Launching the VASCO Citizen Science Project

Universe, 2022
The Vanishing & Appearing Sources during a Century of Observations (VASCO) project investigates astronomical surveys spanning a time interval of 70 years, searching for unusual and exotic transients.
Beatriz Villarroel, Kristiaan Pelckmans, Enrique Solano, Mikael Laaksoharju, Abel Souza, Onyeuwaoma Nnaemeka Dom, Khaoula Laggoune, Jamal Mimouni, Hichem Guergouri, Lars Mattsson, Aurora Lago García, Johan Soodla, Diego Castillo, Matthew E. Shultz, Rubby Aworka, Sébastien Comerón, Stefan Geier, Geoffrey W. Marcy, Alok C. Gupta, Josefine Bergstedt, Rudolf E. Bär, Bart Buelens, Emilio Enriquez, Christopher K. Mellon, Almudena Prieto, Dismas Simiyu Wamalwa, Rafael S. de Souza, Martin J. Ward   +27 more
doaj   +1 more source

Chip‐Integrated Metasurface‐GaAsSb Nanowire Array Photodetectors for Single‐Pixel Polarimetric Imaging

Advanced Optical Materials, EarlyView.
A 2×2 multiplexed GaAsSb nanowire photodetector array integrated with L‐shaped metasurfaces is developed for miniaturized infrared polarimetry. Leveraging non‐radiating anapole states that facilitate near‐field enhancement, the device demonstrates strong polarization selectivity at 835 nm.
Longsibo Huang, Ziyuan Li, Yitao Yang, Yang Yu, Lei Xu, Li Li, Songqin Zhang, Han Wang, Wenwu Pan, Chaohao Chen, Weiqi Jin, Wen Lei, Lorenzo Faraone, Chennupati Jagadish, Lan Fu   +14 more
wiley   +1 more source

Lunar‐Based Photothermal CO2 Reduction Strategy: Self‐Evolving Transient Active Interface and Band Engineering

Advanced Science, EarlyView.
A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang, Yuhuan Li, Quanxin Wang, Deng Li, Pakkin Leong, Meng Wang, Shi Feng, Runyang Mo, Xianjin Shi, Xiaohui Li, Gangqiang Zhu, Chipui Tang   +11 more
wiley   +1 more source

The far-infrared/submillimeter properties of galaxies located behind the Bullet cluster* [PDF]

, 2010
The Herschel Lensing Survey (HLS) takes advantage of gravitational lensing by massive galaxy clusters to sample a population of high-redshift galaxies which are too faint to be detected above the confusion limit of current far-infrared/submillimeter ...
David Hughes, ITZIAR ARETXAGA MENDEZ
core  

A Simple Model of the Radio–Infrared Correlation Depending on Gas Surface Density and Redshift

The Astrophysical Journal
We introduce a simple parametric model of the radio–infrared correlation (i.e., the ratio between the IR luminosity and the 1.4 GHz radio luminosity, q _IR ) by considering the energy loss rate of high-energy cosmic-ray (CR) electrons governed by ...
Ilsang Yoon
doaj   +1 more source

Imaging Electric Polarization Switching in Multilayer Graphene

Advanced Science, EarlyView.
Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou, Xiyao Peng, Jianfeng Bi, Jing He, Fei Xue, Jie Jiang, Huizhen Wu, Zhiwen Shi, Haoliang Qian, Toshikaze Kariyado, Sihan Zhao   +10 more
wiley   +1 more source

The far-infrared spectroscopic surveyor (FIRSS) [PDF]

, 2021
International audienceWe are standing at the crossroads of powerful new facilities emerging in the next decade on the ground and in space like ELT, SKA, JWST, and Athena.
Garcia-Bernete, I, Lis, DC, Okada, V. Ossenkopf, Garcia-Bernete, I., Tan, BK, Aalto, Susanne,, Aalto, Susanne, Tan, B. K., Lis, D. C., Molinari, S, Aalto, S, Kramer, C., Pearson, C., Magdis, G., Goldsmith, P., F, Goldsmith, P. F., Goicoechea, J.,, Goicoechea, J., R, Yassin, G.,, Caux, E., Molinari, S., Hunt, LK, Aalto, S., Garcia-Bernete, I.,, Ellison, B, Goldsmith, P.,, Gerin, M, Ellison, B.,, Lis, D. C.,, Goicoechea, JR, MOLINARI, Sergio, Wiedner, M., HUNT, Leslie Kipp, Yassin, G., Kramer, C.,, Tan, B. K.,, Pearson, C.,, Goicoechea, J. R., Goldsmith, PF, Tan, B., K, Savini, G, Kramer, C, Goldsmith, P. F.,, Savini, G.,, Goicoechea, J. R.,, Yassin, G, Okada, VO, Hunt, L.,, Savini, G., Wiedner, M.,, Magdis, G, Rigopoulou, D.,, Pearson, C, Lis, D.,, Okada, V. Ossenkopf,, Gerin, M.,, Hunt, L. K.,, Tan, B.,, Molinari, S.,, Gerin, M., Hunt, L., K, Wiedner, M, Rigopoulou, D., Rigopoulou, D, Magdis, G.,, Caux, E.,, Lis, D., C, Ellison, B., Hunt, L. K., Caux, E   +69 more
core   +1 more source

Prototype Development of CCD Image System for Astronomical Applications [PDF]

Journal of Astronomy and Space Sciences, 1997
We present the development process of a prototype CCD imaging system which is being built at Korea Astronomy Observatory(KA() for astronomical applications.
Jin Ho, Wonyong Han, Wuk-Won Nam, Jaewoo Lee, Woo-Baik Lee   +4 more
doaj  

The Magnetic Fields of Starburst Galaxies. I. Identification and Characterization of the Thermal Polarization in the Galactic Disk and Outflow

The Astrophysical Journal, 2023
Far-infrared polarized emission by means of magnetically aligned dust grains is an excellent tracer of the magnetic fields (B-fields) in the cold phase of the galactic outflows of starburst galaxies.
Enrique Lopez-Rodriguez
doaj   +1 more source