Results 81 to 90 of about 128,614 (227)

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

High-energy Neutrino Constraints on Cosmic-Ray Reacceleration in Radio Halos of Massive Galaxy Clusters

The Astrophysical Journal, 2023
A fraction of merging galaxy clusters host diffuse radio emission in their central region, termed a giant radio halo (GRH). The most promising mechanism of GRHs is the reacceleration of nonthermal electrons and positrons by merger-induced turbulence ...
Kosuke Nishiwaki, Katsuaki Asano, Kohta Murase   +2 more
doaj   +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

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

CHANG-ES VI: Probing Supernova Energy Deposition in Spiral Galaxies Through Multi-Wavelength Relationships [PDF]

, 2015
How a galaxy regulates its SNe energy into different interstellar/circumgalactic medium components strongly affects galaxy evolution. Based on the JVLA D-configuration C- (6 GHz) and L-band (1.6 GHz) continuum observations, we perform statistical ...
Beck, Rainer, Dettmar, Ralf-Jurgen, Heald, George, Irwin, Judith, Johnson, Megan, Kepley, Amanda A., Krause, Marita, Li, Jiang-Tao, Murphy, E. J., Orlando, Elena, Rand, Richard J., Strong, A. W., Vargas, Carlos J., Walterbos, Rene, Wang, Q. Daniel, Wiegert, Theresa   +15 more
core   +2 more sources

What Triggers Radio Galaxies?

, 2006
We are investigating possible triggering scenarios which may give rise to powerful jetted active galaxies such as classical double radio galaxies. Important clues come from studying those objects which have most recently been triggered. The newly discovered 'Youth-Redshift Degeneracy' for classical double radio galaxies means that the highest redshift ...
Cruz, M, Blundell, K
openaire   +1 more source

Challenges in Bringing Pangenome Research Into Breeding: A Case Study in Rice

Plant Biotechnology Journal, EarlyView.
ABSTRACT Crop breeding has entered the pangenomics era, unlocking a far more comprehensive view of genetic diversity than a single reference genome can capture. In rice (Oryza sativa), a staple crop critical to global food security, the construction of pangenome resources has uncovered extensive structural variations (SVs), presence/absence variations (
Shuai Nie, Fangping Li, Risheng Li, Jian Wang, Yamei Ma, Chon Kit Kenneth Chan, Junliang Zhao, Haifei Hu   +7 more
wiley   +1 more source

Cerebrovascular pulsatility following long duration spaceflight is associated with changes in pulse pressure and carotid artery stiffness

Experimental Physiology, EarlyView.
Abstract Central artery stiffening increases the haemodynamic pulsations transmitted downstream towards target organs, including the brain. While recent evidence suggests that long duration spaceflight is associated with reduced common carotid artery (CCA) distensibility, cerebrovascular pulsatility has not been extensively characterized in astronauts.
Roxanne Fournier, Danielle K. Greaves, J. Kevin Shoemaker, Philippe Arbeille, Richard L. Hughson, Andrew D. Robertson   +5 more
wiley   +1 more source

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

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