Search Results - "Croston, J. H."

The particle content of low-power radio galaxies in groups and clusters by Croston, J. H., Hardcastle, M. J.

“…The synchrotron-radiating particles and magnetic fields in low-power radio galaxies (including most nearby cluster-centre sources), if at equipartition, can…”
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Hot and cold gas accretion and feedback in radio-loud active galaxies by Hardcastle, M. J., Evans, D. A., Croston, J. H.

“…We have recently shown that X-ray observations of the population of ‘low-excitation’ radio galaxies, which includes most low-power, Fanaroff–Riley class I…”
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Deep VLA Observations of the Cluster 1RXS J0603.3+4214 in the Frequency Range of 1-2 GHz by Rajpurohit, K., Hoeft, M., van Weeren, R. J., Rudnick, L., Röttgering, H. J. A., Forman, W. R., Brüggen, M., Croston, J. H., Andrade-Santos, F., Dawson, W. A., Intema, H. T., Kraft, R. P., Jones, C., Jee, M. James

“…We report L-band VLA observations of 1RXS J0603.3+4214, a cluster that hosts a bright radio relic, known as the Toothbrush, and an elongated giant radio halo…”
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The active nuclei of z < 1.0 3CRR radio sources by Hardcastle, M. J., Evans, D. A., Croston, J. H.

“…We combine Chandra and XMM–Newton X-ray data from our previous papers with new X-ray observations and with Spitzer mid-infrared (mid-IR) data in order to study…”
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A population of galaxy-scale jets discovered using LOFAR by Webster, B, Croston, J H, Mingo, B, Baldi, R D, Barkus, B, Gürkan, G, Hardcastle, M J, Morganti, R, Röttgering, H J A, Sabater, J, Shimwell, T W, Tasse, C, White, G J

“…ABSTRACT The effects of feedback from high luminosity radio-loud active galactic nuclei (AGN) have been extensively discussed in the literature, but feedback…”
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An X-Ray Study of Magnetic Field Strengths and Particle Content in the Lobes of FR II Radio Sources by Croston, J. H, Hardcastle, M. J, Harris, D. E, Belsole, E, Birkinshaw, M, Worrall, D. M

“…We present a Chandra and XMM-Newton study of X-ray emission from the lobes of 33 classical double radio galaxies and quasars. We report new detections of…”
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The X-ray nuclei of intermediate-redshift radio sources by Hardcastle, M. J., Evans, D. A., Croston, J. H.

“…We present a Chandra and XMM-Newton spectral analysis of the nuclei of the radio galaxies and radio-loud quasars from the 3CRR sample in the redshift range 0.1…”
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Modelling TeV γ-ray emission from the kiloparsec-scale jets of Centaurus A and M87 by Hardcastle, M. J., Croston, J. H.

“…The widespread detection of synchrotron X-ray emission from the jets of low-power, nearby radio galaxies implies the presence of electrons at and above TeV…”
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An XMM-Newton study of the environments, particle content and impact of low-power radio galaxies by Croston, J. H., Hardcastle, M. J., Birkinshaw, M., Worrall, D. M., Laing, R. A.

“…We present a detailed study of the environments of a sample of nine low-power [Fanaroff-Riley type I (FR I)] radio galaxies, based on new and archival…”
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Discovery of a spiral-host episodic radio galaxy by Hota, Ananda, Sirothia, S. K., Ohyama, Youichi, Konar, C., Kim, Suk, Rey, Soo-Chang, Saikia, D. J., Croston, J. H., Matsushita, Satoki

“…ABSTRACT We report the discovery of a unique radio galaxy at z= 0.137, which could possibly be the second spiral‐host large radio galaxy and also the second…”
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LOFAR reveals the giant: a low-frequency radio continuum study of the outflow in the nearby FR I radio galaxy 3C 31 by Heesen, V, Croston, J H, Morganti, R, Hardcastle, M J, Stewart, A J, Best, P N, Broderick, J W, Brüggen, M, Brunetti, G, Chyży, K T, Harwood, J J, Haverkorn, M, Hess, K M, Intema, H T, Jamrozy, M, Kunert-Bajraszewska, M, McKean, J P, Orrú, E, Röttgering, H J A, Shimwell, T W, Shulevski, A, White, G J, Wilcots, E M, Williams, W L

“…Abstract We present a deep, low-frequency radio continuum study of the nearby Fanaroff–Riley class I (FR I) radio galaxy 3C 31 using a combination of LOw…”
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XMM-Newton observations of the merging galaxy cluster CIZA J2242.8+5301 by Ogrean, G. A., Brüggen, M., Röttgering, H., Simionescu, A., Croston, J. H., van Weeren, R., Hoeft, M.

“…We studied the intracluster medium (ICM) of the galaxy cluster CIZA J2242.8+5301 using deep XMM-Newton observations. The cluster hosts a remarkable 2 Mpc long,…”
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Low-frequency observations of the giant radio galaxy NGC 6251 by Cantwell, T M, Bray, J D, Croston, J H, Scaife, A M M, Mulcahy, D D, Best, P N, Brüggen, M, Brunetti, G, Callingham, J R, Clarke, A O, Hardcastle, M J, Harwood, J J, Heald, G, Heesen, V, Iacobelli, M, Jamrozy, M, Morganti, R, Orrú, E, O’Sullivan, S P, Riseley, C J, Röttgering, H J A, Shulevski, A, Sridhar, S S, Tasse, C, Van Eck, C L

“…ABSTRACT We present LOFAR observations at 150 MHz of the borderline FRI/FRII giant radio galaxy NGC 6251. This paper presents the most sensitive and highest…”
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Probing evolutionary mechanisms in galaxy clusters: neutral atomic hydrogen in Abell 1367 by Scott, T. C., Bravo-Alfaro, H., Brinks, E., Caretta, C. A., Cortese, L., Boselli, A., Hardcastle, M. J., Croston, J. H., Plauchu, I.

“…We present Very Large Array H i imaging data for a field in the NW of the galaxy cluster Abell 1367 (z= 0.02) in an attempt to probe the effect environment has…”
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Searching for the inverse-Compton emission from bright cluster-centre radio galaxies by Hardcastle, M. J., Croston, J. H.

“…We use deep archival Chandra and XMM–Newton observations of three of the brightest cluster-centre radio galaxies in the sky, Cygnus A, Hercules A and Hydra A,…”
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SHOCKS, SEYFERTS, AND THE SUPERNOVA REMNANT CONNECTION: A CHANDRA OBSERVATION OF THE CIRCINUS GALAXY by MINGO, B, HARDCASTLE, M. J, CROSTON, J. H, EVANS, D. A, KHARB, P, KRAFT, R. P, LENC, E

“…We analyze new Chandra observations of the nearest (D = 4 Mpc) Seyfert 2 active galaxy, Circinus, and match them to pre-existing radio, infrared, and optical…”
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Particle content, radio-galaxy morphology, and jet power: all radio-loud AGN are not equal by Croston, J H, Ineson, J, Hardcastle, M J

“…Abstract Ongoing and future radio surveys aim to trace the evolution of black hole growth and feedback from active galactic nuclei (AGNs) throughout cosmic…”
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High-energy particle acceleration at the radio-lobe shock of Centaurus A by Croston, J. H., Kraft, R. P., Hardcastle, M. J., Birkinshaw, M., Worrall, D. M., Nulsen, P. E. J., Penna, R. F., Sivakoff, G. R., Jordán, A., Brassington, N. J., Evans, D. A., Forman, W. R., Gilfanov, M., Goodger, J. L., Harris, W. E., Jones, C., Juett, A. M., Murray, S. S., Raychaudhury, S., Sarazin, C. L., Voss, R., Woodley, K. A.

“…We present new results on the shock around the south-west radio lobe of Centaurus A using data from the Chandra Very Large Programme observations (740 ks total…”
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Shock Heating in the Nearby Radio Galaxy NGC 3801 by Croston, J. H, Kraft, R. P, Hardcastle, M. J

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High‐redshift Fanaroff–Riley type II radio sources: large‐scale X‐ray environment by Belsole, E., Worrall, D. M., Hardcastle, M. J., Croston, J. H.

“…We investigate the properties of the environment around 20 powerful radio galaxies and quasars at redshifts between 0.45 and 1. Using XMM–Newton and Chandra…”
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