Results 51 to 60 of about 133,360 (273)

A search for clusters at high redshift - III. Candidate H-alpha emitters and EROs in the PKS 1138-262 proto-cluster at z=2.16 [PDF]

, 2004
In this paper we present deep VLT multi wavelength imaging observations of the field around the radio galaxy PKS 1138-262 aimed at detecting and studying a (potential) proto-cluster centered at this radio source.
Abell, Bahcall, Bahcall, Beers, Bertin, Best, Bower, Bruzual, Buat, Bunker, Butcher, Carilli, Carilli, Cowie, Cowie, Daddi, Daddi, De Breuck, De Breuck, De Propris, Dey, Donahue, Dressler, Eggen, Eke, Elston, Elston, Feigelson, Fynbo, Fynbo, Fynbo, Gladders, Glazebrook, Hamuy, Hamuy, Hill, Hoeg, Hu, Iglesias-Páramo, Infante, Ivison, Jarvis, Kauffmann, Kauffmann, Kennicutt, Kennicutt, Kennicutt, Kron, Kurk, Kurk, Lacy, Lacy, Leitherer, Madau, McLure, Moorwood, Møller, Nakata, Oke, Ouchi, Pentericci, Pentericci, Pentericci, Pentericci, Pentericci, Pozzetti, Prentice, Refregier, Rhoads, Rhoads, Rosati, Rosati, Röttgering, Salpeter, Schlegel, Scodeggio, Small, Stanford, Stanford, Stanford, Steidel, Steidel, Stiavelli, Taylor, van Breugel, van der Werf, van Dokkum, van Dokkum, van Dokkum, Venemans, Yates   +90 more
core   +4 more sources

Extremely Red Radio Galaxies [PDF]

, 2001
At least half the radio galaxies at z>1 in the 7C Redshift Survey have extremely red colours (R-K>5), consistent with stellar populations which formed at high redshift (z>5). We discuss the implications of this for the evolution of massive galaxies in general and for the fraction of near-IR-selected EROs which host AGN, a result which is now ...
Willott, C, Rawlings, S, Blundell, K
openaire   +4 more sources

Thermal and Non-thermal Plasmas in the Galaxy Cluster 3C 129 [PDF]

, 2003
We describe new Chandra spectroscopy data of the cluster which harbors the prototypical "head tail" radio galaxy 3C 129 and the weaker radio galaxy 3C 129.1. We combined the Chandra data with Very Large Array (VLA) radio data taken at 0.33, 5, and 8 GHz (
Grossman, R., Harris, D. E., Kassim, N., Krawczynski, H., Lane, W., Willis, A. G.   +5 more
core   +2 more sources

MRC B0319-454: Probing the large-scale structure with a giant radio galaxy

, 2008
We present an investigation of the relationships between the radio properties of a giant radio galaxy MRC B0319-454 and the surrounding galaxy distribution with the aim of examining the influence of intergalactic gas and gravity associated with the large-
Begelman, Bliton, Blundell, Boehringer, Bregman, Bryant, Brüggen, Bîrzan, Cen, Cen, Churazov, Davé, Douglass, Fleenor, Fleenor, G. V. Bicknell, Gull, Hardcastle, Hardcastle, Haslam, Haverkorn, Huchra, Ishwara-Chandra, Jamrozy, Jamrozy, Jones, Jones, Jones, Kaiser, Kaiser, Klamer, Kraft, L. Saripalli, Lara, Ledlow, Lewis, McNamara, Mills, Mulchaey, Nulsen, R. Subrahmanyan, Safouris, Saripalli, Schatzmann, Scheuer, Simard-Normandin, Slee, Subrahmanyan, V. Safouris, Worrall, Worrall, Wright   +51 more
core   +1 more source

Somewhere in between: Tracing the Radio Emission from Galaxy Groups (or Why Does the Future of Observing Galaxy Groups with Radio Telescopes Look Promising?)

Galaxies, 2021
Galaxy groups constitute the most common class of galaxy systems in the known Universe, unique in terms of environmental properties. However, despite recent advances in optical and infrared observations as well as in theoretical research, little is known
Błażej Nikiel-Wroczyński
doaj   +1 more source

Galaxy Cluster Environments of Radio Sources

, 2011
Using the Sloan Digital Sky Survey (SDSS) and the FIRST (Faint Images of the Radio Sky at Twenty Centimeters) catalogs, we examined the optical environments around double-lobed radio sources. Previous studies have shown that multi-component radio sources
Abazajian, Ascasibar, Bahcall, Blanc, Blanton, Blanton, Blanton, Blanton, Blanton, Blanton, Bower, Bradač, Brodwin, Budavári, Burns, Clarke, Condon, Croft, Csabai, Daddi, Dalton, Deltorn, Dickinson, D’Onghia, Elizabeth L. Blanton, Fanaroff, Gal, Garilli, Gladders, Gladders, Gladders, Gómez, Ivezić, Jee, Joshua D. Wing, Koester, Koester, Krick, Lin, Lin, Lin, Lumsden, Martini, McMahon, Menanteau, Miller, Oklopčić, Ostrander, Owen, Oyaizu, Proctor, Reiprich, Roettiger, Sarazin, Schlegel, Smith, Smolčić, Vanderlinde, Vikhlinin, Voges, Wen, York, Zirbel, Zwicky   +63 more
core   +1 more source

Radio Galaxy Spectra

, 2001
4 pages, 3 figures, submitted to 'Particles & Fields in Radio Galaxies' eds Laing & Blundell, ASP conference ...
Jackson, C, Wall, J
openaire   +3 more sources

RADIO RELICS IN CLUSTERS OF GALAXIES

Journal of The Korean Astronomical Society, 2004
6 pages, 8 figures. Proceedings of the 3rd Korean Astrophysics Workshop "Cosmic Rays and Magnetic Fields in Large Scale Structure", Pusan, Korea, August 2004, eds. H. Kang & D.
GIOVANNINI, GABRIELE, FERETTI L.
openaire   +4 more sources

The gaseous environments of radio galaxies [PDF]

New Astronomy Reviews, 2002
X-ray emission traces the gaseous environments of radio sources. The medium must be present for jet confinement, but what are its influence on jet fuelling, dynamics, propagation, and disruption? The observational situation is both complicated and enriched by radio sources being multi-component X-ray emitters, with several possible regions of non ...
Diana M Worrall, Diana M Worrall
openaire   +3 more sources

ИССЛЕДОВАНИЕ УГЛОВОЙ СТРУКТУРЫ РАДИОГАЛАКТИКИ 3С265 НА ДЕКАМЕТРОВЫХ ВОЛНАХ

Odessa Astronomical Publications, 2011
The results of study of the radio galaxy 3C265 at decameter wavelengths are presented. As the high frequency map of the radio source the decameter model of its angular structure contains two extended lobes and three compact hot spots. Its coordinates are
Р. В. Ващишин, А. И. Браженко, В. А. Шепелев, С. Л. Рашковский, Г. А. Инютин, В. В. Кошевой, А. Б. Лозинский, О. А. Литвиненко, В. Г. Деревягин   +8 more
doaj   +1 more source