Results 111 to 120 of about 132,038 (243)

A Multiwavelength Portrait of the 3C 220.3 Lensed System

The Astrophysical Journal
The 3C 220.3 system is a rare case of a foreground narrow-line radio galaxy (“galaxy A,” z _A = 0.6850) lensing a background submillimeter galaxy ( z _SMG = 2.221).
Sóley Ó. Hyman, Belinda J. Wilkes, S. P. Willner, Joanna Kuraszkiewicz, Mojegan Azadi, D. M. Worrall, Adi Foord, Simona Vegetti, Matthew L. N. Ashby, Mark Birkinshaw, Christopher Fassnacht, Martin Haas, Daniel Stern   +12 more
doaj   +1 more source

Abell 2255: Increased Star Formation and AGN Activity in a Cluster-Cluster Merger [PDF]

, 2003
Deep VLA 1.4 GHz radio continuum imaging of Abell 2255 is presented. This cluster is among the better nearby candidates for rich cluster-cluster merger systems, with evidence including an elongated X-ray morphology, the presence of a radio halo, and ...
Miller, Neal, Owen, Frazer
core   +3 more sources

Transforming Porous Membranes into Dual‐Gradient Janus Structures by Directional Asymmetric Modification

Small Methods, EarlyView.
This study reports a parylene–plasma–porous (PPP) treatment that directionally transforms conventional porous membranes into dual‐gradient Janus structures. By aligning porosity and wettability gradients through asymmetric chemical‐vapor‐deposition (CVD) and localized O2 plasma treatment, the resulting membrane enables gravity‐independent self‐pumping ...
Jaehyung Jeon, Heeseon Choi, Jinseung Bae, Gwang Myeong Seo, Jeonghun Han, Hogyun Park, Sungsu Park   +6 more
wiley   +1 more source

The Centre of Attention: A Powerful Radio Galaxy Pinpoints a Near-infrared-dark Protocluster at z ∼ 3.9

The Astrophysical Journal
We report the discovery of a z ∼ 3.9 protocluster identified from Atacama Large Millimeter/submillimeter Array Band 3 spectral scans of a bright radio source selected from the Galactic and Extragalactic All-sky Murchison Widefield Array (GLEAM) survey ...
A. J. Hedge, N. Seymour, J. W. Broderick, A. Gupta, J. Afonso, L. Ighina, M. Lehnert, G. Noirot, S. Shabala, D. Stern, R. J. Turner   +10 more
doaj   +1 more source

Tools for Learning—Promoting Reflection for Student Teachers' Development of PCK

Journal of Research in Science Teaching, EarlyView.
ABSTRACT This paper investigates how the coherent integration of three different tools for reflection during a science methods course can contribute to student teachers' planning and enactment of science teaching, that is, their development of pedagogical content knowledge (PCK).
Pernilla Nilsson, Anne‐Marie Cederqvist   +1 more
wiley   +1 more source

Discovery of a 100 kpc Narrow Curved Twin Jet in the S-shaped Giant Radio Galaxy J0644+1043

The Astrophysical Journal
We report the discovery of an S-shaped morphology of the radio galaxy J0644+1043 imaged with a 30 μ Jy beam ^−1 sensitive 525 MHz broadband (bands 3 + 4) uGMRT map.
Sagar Sethi, Agnieszka Kuźmicz, Marek Jamrozy, Lyuba Slavcheva-Mihova   +3 more
doaj   +1 more source

Diffuse steep-spectrum sources from the 74 MHz VLSS survey

, 2011
Galaxy clusters grow by a sequence of mergers with other clusters and galaxy groups. During these mergers, shocks and/or turbulence are created within the intracluster medium (ICM).
Abazajian, Axford, Baars, Bacchi, Bagchi, Bagchi, Battaglia, Becker, Bell, Bell, Blandford, Blandford, Blasi, Bonafede, Bonafede, Brentjens, Brunetti, Brunetti, Burns, Chandra, Clarke, Cohen, Condon, Cornwell, de Vries, Dennison, Dolag, Drury, Dwarakanath, Ensslin, Enßlin, Enßlin, Ferrari, Giovannini, Giovannini, Giovannini, Gitti, Gitti, Gitti, Govoni, Govoni, Green, H. J. A. Röttgering, Haynes, Higgs, Hoeft, Hoeft, Joncas, Jones, Kempner, Koester, Krymskii, M. Brüggen, Macario, Malkov, Miley, Miniati, Murgia, Petrosian, Pfrommer, R. J. van Weeren, Rengelink, Röttgering, Schlegel, Shen, Skillman, Slee, Slinglend, Snellen, Struble, van Weeren, van Weeren, van Weeren, van Weeren, Venturi, Venturi, Voges, Voges, Wardle, Willott, Zanichelli   +80 more
core   +1 more source

Radiation‐Induced Degradation in Polymeric Materials: Alterations in Physical–Chemical Properties and Their Effects on Electrical Performance of Insulation Systems

High Voltage, EarlyView.
ABSTRACT This paper investigates the effects of radiation on polymeric materials used as insulation systems in electrical equipment such as cables for nuclear and particle accelerator applications. After a detailed description of the physics of radiation‐induced damage in the polymeric matrix, a comprehensive analysis of the physical–chemical and ...
Simone Vincenzo Suraci, Davide Fabiani
wiley   +1 more source

3C459: A highly asymmetric radio galaxy with a starburst

, 2003
Multifrequency radio observations of the radio galaxy 3C459 using MERLIN, VLA and the EVN, and an optical HST image using the F702W filter are presented.
Baade, Baars, Barthel, Bremer, Bridle, Carvalho, Conway, Crawford, D. J. Saikia, Dallacasa, Davis, de Koff, de Vries, Eracleous, Fanti, Farrah, Garrington, Haslam, Heckman, Heckman, Hernquist, Ishwara-Chandra, Ishwara-Chandra, Krause, Krause, Laing, Liu, Mantovani, McCarthy, Miller, Morganti, Morganti, O'Dea, O'Dea, Owen, P. Thomasson, Pedelty, Quinn, Saikia, Saikia, Saikia, Saikia, Saikia, Schilizzi, Simard-Normandin, Spinrad, T. W. B. Muxlow, Tadhunter, Thomasson, Toomre, Ulvestad, Yee   +51 more
core   +2 more sources

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler, Robert A. E. Fosbury, David Hazlerigg, Christopher Hogg   +3 more
wiley   +1 more source