Results 61 to 70 of about 35,434 (190)

Plasma and Warm Dust in the Collisional Ring Galaxy VIIZw466 from VLA and ISO Observations [PDF]

, 1999
We present the first mid-infrared (Mid-IR) ($\lambda5-15\mu$m) and radio continuum ($\lambda\lambda$20,~6 and 3.6 cm) observations of the star-forming collisional ring galaxy VII Zw 466 and its host group made with the Infrared Space Observatory and the ...
Abergel A., Appleton P. N., C. Horellou, Cannon R. D., Cesarsky C. J., Charmandaris V., F. Ghigo, Higdon J. L., Horellou C., I. F. Mirabel, J. L. Higdon, Leger A., Mirabel I. F., P. N. Appleton, S. Lord, Starck J.-L., Strong A. W., V. Charmandaris, Verstraete L.   +18 more
core   +4 more sources

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

Advanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo, Ruowen Tu, Carlo Filippeschi, Stefano Mariani, Barbara Mazzolai   +4 more
wiley   +1 more source

Discovery of the first giant double radio relic in a galaxy cluster found in the PLANCK Sunyaev-Zel'dovich cluster survey: PLCK G287.0+32.9

, 2011
We report the discovery of large scale diffuse non-thermal radio emission in PLCK G287.0+32.9, an exceptionally hot (T ~ 13 keV), massive and luminous galaxy cluster, strongly detected by the PLANCK satellite in a recent, all-sky blind search for new ...
Brown, Condon, Enßlin, Govoni, Paul, Planck Collaboration, Planck Collaboration, Planck Collaboration, Planck Collaboration, Rudnick, Röttgering, Sunyaev, Vanderlinde, Williamson   +13 more
core   +1 more source

Low-frequency radio emission in the massive galaxy cluster MACS J0717.5 + 3745 [PDF]

, 2013
International audienceTo investigate the nonthermal emission mechanism and their interaction during cluster mergers, we analyze multiple low-frequency radio data for the X-ray luminous massive galaxy cluster MACS J0717.5 + 3745, located at z = 0.5548 ...
Combes, F., Dwarakanath, K. S., Ferrari, C., Guiderdoni, B., Narasimha, D., Pandey-Pommier, M., Richard, J., Sirothia, S.   +7 more
core   +3 more sources

Parametric Design of Continuum Robots Using Interlocking Ball Joints

Advanced Intelligent Systems, EarlyView.
Herein, a parametric design methodology is introduced for producing a wide variety of modular ball joint‐based continuum robots. It is demonstrate by designing a magnetically actuated continuum robot for cardiac ablations. The methodology is released as an open‐source computer‐assisted design extension that automatically designs continuum robots based ...
Alexandre Mesot, Quentin Boehler, Florian Heemeyer, Sean Lyttle, Buse Aktaş, Bradley J. Nelson   +5 more
wiley   +1 more source

Multiple Emission Regions in Jets of the Low-Luminosity Active Galactic Nucleus in NGC 4278

The Astrophysical Journal
The Large High Altitude Air Shower Observatory (LHAASO) has detected very-high-energy gamma rays from the low-ionization nuclear emission-line region galaxy NGC 4278, which has a low-luminosity active galactic nucleus (LLAGN) and symmetric, mildly ...
Samik Dutta, Nayantara Gupta
doaj   +1 more source

Multitarget Recognition of Flower Images Based on Lightweight Deep Neural Network and Transfer Learning

Advanced Intelligent Systems, EarlyView.
This article proposes a lightweight YOLOv4‐based detection model using MobileNetV3 or CSPDarknet53_tiny, achieving 30+ FPS and higher mAP. It also presents a ShuffleNet‐based classification model with transfer learning and GAN‐augmented images, improving generalization and accuracy.
Qingyang Liu, Yanrong Hu, Hongjiu Liu
wiley   +1 more source

A Machine Learning Based Morphological Classification of 14,245 Radio AGNs Selected from the Best–Heckman Sample [PDF]

Astrophysical Journal Supplement Series, 2018
We present a morphological classification of 14,245 radio active galactic nuclei (AGNs) into six types, i.e., typical Fanaroff–Riley Class I/II (FRI/II), FRI/II-like bent-tailed, X-shaped radio galaxy, and ringlike radio galaxy, by designing a ...
Zhixian Ma, Haiguang Xu, Jie Zhu, D. Hu, Weitian Li, C. Shan, Zhenghao Zhu, L. Gu, Jinjin Li, Chengze Liu, Xiang-Ping Wu   +10 more
semanticscholar   +1 more source

Bipolar-Hyper-Shell Galactic Center Statrburst Model: Further Evidence from ROSAT Data and New Radio and X-ray Simulations [PDF]

, 1999
Using the all-sky ROSAT soft X-ray and 408-MHz radio continuum data, we show that the North Polar Spur and its western and southern counter-spurs draw a giant dumbbell-shape necked at the galactic plane.
Berkhuijsen E., Egger R. J., Genzel R., Haslam C. G. T., Laumbach D. D., Mollenhoff C., Nakai N., Nakai N., Oort J. H., Pietsch W., Sakashita S., Sofue Y., Sofue Y., Sofue Y., Sofue Y., van Albada G. D., Vogler A., Vogler A., Yoshiaki Sofue   +18 more
core   +3 more sources

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, EarlyView.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source