Results 71 to 80 of about 25,844 (181)

IGR J14488-4008: an X-ray peculiar giant radio galaxy discovered by INTEGRAL [PDF]

, 2015
In this paper we report the discovery and detailed radio/X-ray analysis of a peculiar giant radio galaxy (GRG) detected by INTEGRAL, IGR J14488-4008. The source has been recently classified as a Seyfert 1.2 galaxy at redshift 0.123; the radio data denote
Bassani, Loredana, Bird, Antony J., Dallacasa, Daniele, Lal, Dharam Vir, Malizia, Angela, Molina, Manuela, Ubertini, Pietro, Venturi, Tiziana   +7 more
core   +2 more sources

Multifunctional Chiral Halide Perovskites: Advancing Chiro‐Optics, Chiro‐Optoelectronics, and Spintronics

Advanced Science, EarlyView.
This review spotlights key advances in chiral halide perovskite materials and devices, covering device architectures, fabrication methods, and emerging applications like circularly polarized light functions, neuromorphic computing, and spintronics. It explores structure‐property relationships and chirality transfer mechanisms, discusses challenges in ...
Qi Liu, Hui Ren, Qi Wei, Mingjie Li
wiley   +1 more source

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

Isotropic AGN Heating with Small Radio Quiet Bubbles in the NGC 5044 Group

, 2009
(abridged) A Chandra observation of the X-ray bright group NGC 5044 shows that the X-ray emitting gas has been strongly perturbed by recent outbursts from the central AGN and also by motion of the central dominant galaxy relative to the group gas.
Ascasibar, Athey, Baldi, Birzan, Birzan, Blanton, Brassington, Bruggen, Buote, Caon, Christine Jones, Churazov, Churazov, Clarke, David, David, David, Di Matteo, Ewan O'Sullivan, Fabian, Forman, Gastaldello, Gebhardt, Heinz, Jan Vrtilek, Jones, Kim, Kraft, Laurence P. David, Loewenstein, McNamara, Moretti, Nulsen, O'Sullivan, Pacholczyk, Paul Nulsen, Peterson, Sarazin, Simona Giacintucci, Somak Raychaudhury, Sparks, Temi, William Forman   +42 more
core   +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

Radio Galaxy NGC 1265 unveils the Accretion Shock onto the Perseus Galaxy Cluster

, 2011
We present a consistent 3D model for the head-tail radio galaxy NGC 1265 that explains the complex radio morphology and spectrum by a past passage of the galaxy and radio bubble through a shock wave. Using analytical solutions to the full Riemann problem
Battaglia, C. Pfrommer, Chandrasekhar, Churazov, Dursi, Dursi, Enßlin, Enßlin, Gisler, Kang, Kulsrud, Landau, Lau, Markevitch, Miley, Miniati, Quilis, Reiprich, Ryle, Ryu, Ryu, Ryu, Sijbring, Sun, T. W. Jones, Tremaine   +25 more
core   +1 more source

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

UV–Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H2CO3)n Calculations

ChemPhysChem, EarlyView.
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu, Bastian Klein, Chaojiang Zhang, Radu A. Talmazan, Thomas Loerting, Hinrich Grothe, Ralf I. Kaiser, Maren Podewitz   +7 more
wiley   +1 more source

A radio study of the superwind galaxy NGC1482

, 2004
We present multifrequency radio continuum as well as HI observations of the superwind galaxy NGC1482, with both the GMRT and the VLA. This galaxy has a remarkable hourglass-shaped optical emission line outflow as well as bi-polar soft X-ray bubbles on ...
Allen, Ananda Hota, Baars, Balsara, Baum, Chini, Colbert, Colbert, Collison, Condon, Condon, Condon, Condon, D. J. Saikia, Da Costa, Dahlem, de Vaucouleurs, Elfhag, Hameed, Heckman, Heckman, Heckman, Hota, Huang, Jarrett, Kewley, Krolik, Larson, Lira, Melioli, Mirabel, Noreau, Pettini, Roth, Saikia, Sanders, Spergel, Strickland, Strickland, Tully, Ulvestad, van Driel, Veilleux, Veilleux, Veilleux, Veilleux, Weaver, Webber, Young, Zezas, Zezas   +50 more
core   +2 more sources

Superwind-Driven Intense H_2 Emission in NGC 6240 [PDF]

, 2000
We have performed a long-slit K band spectroscopic observation of the luminous infrared galaxy NGC 6240. The peak position of the H_2 v=1-0 S(1) emission in the slit is located ~0.3" - 0.4" north of the southern nucleus. It is almost the midpoint between
Chikada, Yoshihiro, Ebizuka, Noboru, Hata, Takashi, Imanishi, Masatoshi, Iwamuro, Fumihide, Iye, Masanori, Kosugi, George, Maihara, Toshinori, Mizumoto, Yoshihiko, Motohara, Kentaro, Noumaru, Junichi, Ogasawara, Ryusuke, Ohyama, Youichi, Saito, Yoshihiko, Sasaki, Toshiyuki, Taguchi, Hiroko, Taguchi, Tomoyuki, Takata, Tadafumi, Usuda, Tomonori, Yagi, Masafumi, Yoshida, Michitoshi   +20 more
core   +2 more sources