Results 31 to 40 of about 128,614 (227)

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

The growth and assembly of a massive galaxy at z ~ 2

, 2009
We study the stellar mass assembly of the Spiderweb Galaxy (MRC 1138-262), a massive z = 2.2 radio galaxy in a protocluster and the probable progenitor of a brightest cluster galaxy.
A. W. Zirm, Benítez, Bertin, Binney, Blakeslee, Boylan-Kolchin, Bruzual, Bruzual, Chabrier, Chandraseker, Coe, Conroy, Conroy, De Lucia, di Matteo, Font, G. K. Miley, Gallagher, Guo, H. J. A. Röttgering, Hatch, Ivison, J. D. Kurk, Kodama, Kriek, Kurk, Malumuth, Maraston, Mihos, Miley, Miley, N. A. Hatch, Nesvadba, Overzier, Papovich, Pentericci, Pentericci, R. A. Overzier, Reddy, Salim, Saro, Saro, Sawicki, Schlegel, Seymour, Shapley, Spergel, Stevens, Venemans, Villar-Martin, Villar-Martín, Zirm, Zirm   +52 more
core   +1 more source

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

Probing the evolution of galaxy clusters using SZ effect and non-thermal emission: First results from A1413 [PDF]

EPJ Web of Conferences
Mass is the most fundamental property of galaxy clusters. However, measuring it is still a challenge. Calibrating mass from intracluster medium observables such as the Sunyaev-Zel’dovich (SZ) effect is subject to uncertainty and biases because of the ...
Pachchigar M., Perrott Y., Parashar T.
doaj   +1 more source

PKS2250-41: a case study for triggering

, 2008
We present the results of a multiwavelength study of the z = 0.31 radio source PKS2250-41. Integral field unit and long-slit spectroscopy obtained using VIMOS and FORS1 on the VLT, and archival HST optical imaging observations are used to study the ...
Appenzeller I., Best P. N., Binette L., Bremer M. N., C. N. Tadhunter, Clark N. E., D. Dicken, Danziger I. J., Dickson R., Howarth I. D., J. Holt, K. J. Inskip, M. Villar-Martín, Moorwood A., Morganti R., R. Morganti, Shaw M., Tadhunter C., Tadhunter C. N.   +18 more
core   +1 more source

Combined LOFAR-uGMRT analysis of the diffuse radio emission in the massive clusters Abell 773 and Abell 1351

Astronomy & Astrophysics
Context. Radio halos are diffuse megaparsec-scale nonthermal radio sources located at the center of galaxy clusters. They trace relativistic particles and magnetic fields in the intra-cluster medium.
Srikanth K. S. L., Botteon A., Cassano R., Brunetti G., Bonafede A., Bruno L., Balboni M., Bashir H., Brüggen M., Chatterjee S., Cuciti V., Dallacasa D., Datta A., de Gasperin F., Di Gennaro G., Groeneveld C., Kale R., Malik M. A., Paul S., Salunkhe S., van Weeren R. J., Venturi T., Zhang X.   +22 more
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

Adaptive Optics observations of LBQS 0108+0028: K-band detection of the host galaxy of a radio-quiet QSO at z=2 [PDF]

, 1998
We report the first unambiguous detection of the host galaxy of a normal radio-quiet QSO at high-redshift in K-band. The luminosity of the host comprises about 35% of the total K-band luminosity. Assuming the average colour of QSOs at z=2, the host would
Aretxaga, I., Boyle, B. J., Melnick, J., Mignant, D. Le, Terlevich, R. J.   +4 more
core   +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

Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope

The Astrophysical Journal, 2023
We present an International LOFAR Telescope (ILT) subarcsecond-resolution image of the nearby galaxy M51 with a beam size of 0.″436 × 0.″366 and rms of 46 μ Jy. We compare this image with a European VLBI Network study of M51 and discuss the supernovae in
Deepika Venkattu, Peter Lundqvist, Miguel Pérez Torres, Leah Morabito, Javier Moldón, John Conway, Poonam Chandra, Cyril Tasse   +7 more
doaj   +1 more source