Results 61 to 70 of about 134,801 (246)

Powerful Radio Sources in the Southern Sky. II. A Swift X-Ray Perspective

The Astrophysical Journal Supplement Series, 2023
We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galaxies and quasars with similar selection criteria to those of the revised ...
F. Massaro, S. V. White, A. Paggi, A. Jimenez-Gallardo, J. P. Madrid, C. Mazzucchelli, W. R. Forman, A. Capetti, C. Leto, A. García-Pérez, C. C. Cheung, V. Chavushyan, N. P. H. Nesvadba, I. Andruchow, H. A. Peña-Herazo, E. Sani, R. Grossová, V. Reynaldi, R. P. Kraft, B. Balmaverde, S. Cellone   +20 more
doaj   +1 more source

Prioritized Real‐Time UAV‐Based Vessel Detection for Efficient Maritime Search

Journal of Field Robotics, EarlyView.
ABSTRACT Real‐time vessel detection in maritime environments is crucial for diverse applications requiring speed and accuracy. Static camera views often introduce blind spots, compromising detection efficiency. This paper proposes a novel, real‐time UAV‐based system that uses a dynamic camera control strategy to address this limitation.
Lyes Saad Saoud, Zikai Jia, Siyuan Yang, Muhayy Ud Din, Lakmal Seneviratne, Shaoming He, Irfan Hussain   +6 more
wiley   +1 more source

Search for clusters at high redshift - I. Candidate Lya emitters near 1138-262 at z=2.2 [PDF]

, 2000
Radio, optical and X-ray observations of the powerful radio galaxy PKS 1138-262 at z=2.156 have suggested that this galaxy is a massive galaxy in the center of a forming cluster.
Carilli, C. L., Ford, H., Heckman, T., Kurk, J. D., McCarthy, P., Miley, G. K., Moorwood, A., Pentericci, L., Rottgering, H. J. A., van Breugel, W.   +9 more
core   +1 more source

Deep spectroscopy of a young radio source at z=0.521

, 2005
9C J1503+4528 is a very young CSS radio galaxy, with an age of order 10^4 years. This source is an ideal laboratory for the study of the intrinsic host galaxy/IGM properties, radio source interactions, evidence for young stellar populations and the radio
Baldwin, Best, Binette, Bolton, Bolton, Bruzual, Dopita, Fanti, Groves, Groves, Howarth, Inskip, Inskip, Moy, Murgia, O'Dea, Oke, Owsianik, Readhead, Snellen, Taylor, Waldram   +21 more
core   +1 more source

The Complex Multiwavelength Morphology of the Peculiar Compact Galaxy Group IC 2431

The Astrophysical Journal
We present new Chandra X-ray imaging spectroscopy of the compact galaxy group IC 2431, and compare with archival ultraviolet, optical, infrared, and radio images. IC 2431 is a starburst system containing three tidally distorted disk galaxies.
Beverly J. Smith, Roberto Soria, Douglas A. Swartz, Mark L. Giroux, Curtis Struck, Ryan Urquhart   +5 more
doaj   +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

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

Tailed radio galaxies as tracers of galaxy clusters. Serendipitous discoveries with the GMRT [PDF]

, 2009
We report on the discovery of four new radio galaxies with tailed morphology. Tailed radio galaxies are generally found in rich environments, therefore their presence can be used as tracer of a cluster.
Giacintucci, S., Venturi, T.
core   +1 more source

From cities to refuges for pollinators: Urban practices for enhancing pollinator habitats in changing landscapes

Journal of Applied Ecology, EarlyView.
A framework for the support of pollinators in urban areas is developed here, based on five pillars: nesting, flower resources, artificial support, management and society acceptance, with additional key elements from science and society. Society should incorporate strategies for pollinators as in this framework by means of co‐planning with stakeholders,
Rosa Ranalli, Sara Borghesan, Massimo Labra, Paolo Biella   +3 more
wiley   +1 more source

A Deep Dive into the NGC 741 Galaxy Group: Insights into a Spectacular Head-tail Radio Galaxy from VLA, MeerKAT, uGMRT, and LOFAR

The Astrophysical Journal
We present deep, wideband multifrequency radio observations (144 MHz−8 GHz) of the remarkable galaxy group NGC 741, which yield crucial insights into the interaction between the infalling head-tail radio galaxy (NGC 742) and the main group.
K. Rajpurohit, E. O’Sullivan, G. Schellenberger, M. Brienza, J. M. Vrtilek, W. Forman, L. P. David, T. Clarke, A. Botteon, F. Vazza, S. Giacintucci, C. Jones, M. Brüggen, T. W. Shimwell, A. Drabent, F. Loi, S. I. Loubser, K. Kolokythas, I. Babyk, H. J. A. Röttgering   +19 more
doaj   +1 more source