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The Herschel ATLAS
(2010-05-01)
The Herschel ATLAS is the largest open-time key project that will be carried out on the Herschel Space Observatory. It will survey 570 deg2 of the extragalactic sky, 4 times larger than all the other Herschel extragalactic ...
Which radio galaxies can make the highest energy cosmic rays?
(2010)
Numerous authors have suggested that the ultra-high-energy cosmic rays (UHECR) detected by the Pierre Auger Observatory and other cosmic ray telescopes may be accelerated in the nuclei, jets or lobes of radio galaxies. ...
Herschel-ATLAS: far-infrared properties of radio-selected galaxies
(2010)
We use the Herschel-Astrophysical Terahertz Large Area Survey (ATLAS) science demonstration data to investigate the star formation properties of radio-selected galaxies in the GAMA-9h field as a function of radio luminosity ...
Searching for the inverse-Compton emission from bright cluster-centre radio galaxies
(2010)
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, to search for inverse-Compton emission from the population of ...
X-ray emission from the extended emission-line region of the powerful radio galaxy 3C 171
(2010)
We present Chandra X-ray observations of the powerful radio galaxy 3C 171, which reveal an extended region of X-ray emission spatially associated with the well-known 10-kpc scale optical emission-line region around the ...
The environments of z ~ 1 active galactic nuclei at 3.6 μm
(2010)
We present an analysis of a large sample of active galactic nuclei (AGN) environments at z∼ 1 using stacked Spitzer data at 3.6 μm. The sample contains type 1 and type 2 AGN in the form of quasars and radio galaxies, and ...
Probing evolutionary mechanisms in galaxy clusters: neutral atomic hydrogen in Abell 1367
(2010)
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 on the interstellar medium of late-type spiral galaxies. Several ...
Modeling x-ray emission of a straight jet : PKS 0920-397
(2010)
We summarize a study of PKS 0920-397 using our 42 ks Chandra observation in conjunction with our ATCA 20GHz image, and HST/ACS F814W and F475W images. We investigate the hypothesis that the jet X–ray emission is due to ...
Parsec-scale imaging of the radio-bubble Seyfert galaxy NGC 6764
(2010)
We have observed the composite active galactic nucleus (AGN)-starburst galaxy NGC 6764 with the Very Long Baseline Array at 1.6 and 4.9 GHz. These observations have detected a "core-jet" structure and a possible weak ...
Long-term monitoring of the dynamics and particle acceleration of knots in the jet of Centaurus A
(2010)
We present new and archival multi-frequency radio and X-ray data for Centaurus A obtained over almost 20 years at the Very Large Array and with Chandra, with which we measure the X-ray and radio spectral indices of jet ...