Results 101 to 110 of about 131,428 (235)

Constraining the Redshift Evolution of FIRST Radio Sources in RCS1 Galaxy Clusters

, 2010
We conduct a statistical analysis of the radio source population in galaxy clusters as a function of redshift by matching radio sources from the Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) catalog with 618 optically-selected galaxy ...
Barrientos, L. Felipe, Gladders, Michael D., Gralla, Megan B., Yee, H. K. C.   +3 more
core   +1 more source

3C 220.3: a radio galaxy lensing a submillimeter galaxy [PDF]

, 2014
Herschel Space Observatory photometry and extensive multiwavelength followup have revealed that the powerful radio galaxy 3C 220.3 at z=0.685 acts as a gravitational lens for a background submillimeter galaxy (SMG) at z=2.221.
Ashby, Matthew L. N., Barthel, Peter, Bussmann, R. Shane, Chini, Rolf, Clements, David L., Fassnacht, Christopher D., Haas, Martin, Horesh, Assaf, Klaas, Ulrich, Koopmans, Leon V. E., Kuraszkiewicz, Joanna, Lagattuta, David J., Leipski, Christian, Meisenheimer, Klaus, Stern, Daniel, Vegetti, Simona, Westhues, Christian, Wilkes, Belinda J., Willner, S. P., Wylezalek, Dominika   +19 more
core   +2 more sources

Clusters of galaxies in radio

, 2003
Recent results on the radio emission from galaxy clusters are reviewed, with emphasis both on the radio galaxies and on the diffuse radio emission from the intracluster medium. We show that the formation of the tailed morphology in cluster radio galaxies is due to the effect of the cluster gaseous environment and of its large scale motions in merging ...
openaire   +3 more sources

A jet-cloud interaction in 3C34 at redshift z = 0.69 [PDF]

, 1997
We report the detection of a strong jet-cloud interaction at a distance of 120 kpc from the nucleus of the radio galaxy 3C34, which has redshift z=0.69.
Best, P. N., Longair, M. S., Röttgering, H. J. A.   +2 more
core   +2 more sources

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

A Formation Mechanism for “Wrong Way” Radio Relics

The Astrophysical Journal Letters, 2023
Radio relics are typically found to be arc-like regions of synchrotron emission in the outskirts of merging galaxy clusters, bowing out from the cluster center.
Ludwig M. Böss, Ulrich P. Steinwandel, Klaus Dolag   +2 more
doaj   +1 more source

Diffuse radio emission in the complex merging galaxy cluster Abell 2069

, 2014
Galaxy clusters with signs for a recent merger show in many cases extended diffuse radio features. This emission originates from relativistic electrons which suffer synchrotron losses due to the intra-cluster magnetic field.
Bonafede, A., Drabent, A., Hoeft, M., Klein, U., Pizzo, R. F., van Weeren, R. J.   +5 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

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

Relativistic inverse Compton scattering of photons from the early universe [PDF]

, 2017
Electrons at relativistic speeds, diffusing in magnetic fields, cause copious emission at radio frequencies in both clusters of galaxies and radio galaxies, through the non-thermal radiation emission called synchrotron.
Colafrancesco, Sergio, Datta, Abhirup, Malu, Siddharth, Marchegiani, Paolo, Narasimha, D, Subrahmanyan, Ravi, Wieringa, Mark H.   +6 more
core   +3 more sources