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71 papers · 1 filter
Globular clusters in the outer halo of M31: the survey
A. P. Huxor, N. R. Tanvir, A. M. N. Ferguson +4
We report the discovery of 40 new globular clusters (GCs) that have been found in surveys of the halo of M31 based on INT/WFC and CHFT/Megacam imagery. A subset of these these new…
A Search for Extended Ultraviolet Disk (XUV-disk) Galaxies in the Local Universe
David A. Thilker, Luciana Bianchi, Gerhardt Meurer +26
We have initiated a search for extended ultraviolet disk (XUV-disk) galaxies in the local universe. Herein, we compare GALEX UV and visible--NIR images of 189 nearby (D40 Mpc) S…
High-resolution radio observations of submillimetre galaxies
A. D. Biggs, R. J. Ivison
We have produced sensitive, high-resolution radio maps of 12 SMGs in the Lockman Hole using combined MERLIN and VLA data at a frequency of 1.4 GHz. Integrating for 350hr yielded an…
The Optical-Radio Mapping: the kinetic efficiency of Radio-Loud AGNs
Francesco Shankar, Alfonso Cavaliere, Michele Cirasuolo +1
We constrain the mean kinetic efficiency of radio-loud active galactic nuclei by using an optically selected sample for which both the optical and the radio luminosity functions (L…
A sample of mJy radio sources at 1.4 GHz in the Lynx and Hercules fields - II. Cosmic evolution of the space density of FRI radio sources
E. E. Rigby, P. N. Best, I. A. G. Snellen
In this paper the cosmic evolution of the space density of Fanaroff & Riley Class I (FRI) radio sources is investigated out to z ~ 1, in order to understand the origin of the diffe…
The SCUBA HAlf Degree Extragalactic Survey (SHADES) -- VI. 350 micron mapping of submillimetre galaxies
Kristen Coppin, Mark Halpern, Douglas Scott +24
A follow-up survey using the Submillimetre High-Angular Resolution Camera (SHARC-II) at 350 microns has been carried out to map the regions around several 850 micron-selected sourc…