Author

M. Doherty

results may include different authors with the same name

4 papers

Galaxy protocluster candidates around z ~ 2.4 radio galaxies

We study the environments of 6 radio galaxies at 2.2 < z < 2.6 using wide-field near-infrared images. We use colour cuts to identify galaxies in this redshift range, and find that three of the radio galaxies are surrounded by significant…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 N. A. Hatch , C. De Breuck , A. Galametz , G. K. Miley , R. A. Overzier , H. J. A. Röttgering , M. Doherty , T. Kodama , J. D. Kurk , N. Seymour , B. P. Venemans , J. Vernet , A. W. Zirm

The Las Campanas Infra-red Survey. V. Keck Spectroscopy of a large sample of Extremely Red Objects

(Abridged) We present deep Keck spectroscopy, using the DEIMOS and LRIS spectrographs, of a large and representative sample of 67 ``Extremely Red Objects'' (EROs) to H=20.5, with I-H>3.0, in three of the Las Campanas Infrared Survey fields.…

Astrophysics · Physics 2009-11-11 M. Doherty , A. J. Bunker , R. S. Ellis , P. J. McCarthy

A search for the radio counterpart of the unidentified gamma-ray source 3EG J1410-6147

We have made radio continuum, HI and X-ray observations in the direction of the unidentified EGRET source 3EG J1410-6147, using the Australia Telescope Compact Array and the Chandra X-ray Observatory. The observations encompass the…

Astrophysics · Physics 2009-11-07 M. Doherty , S. Johnston , A. J. Green , M. S. E. Roberts , R. W. Romani , B. M. Gaensler , F. Crawford

Star Formation at Redshift One: Preliminary results from an H-alpha Survey

We present the first successful demonstration of multi-object near-infrared spectroscopy on high redshift galaxies. Our objective is to address the true star formation history of the universe at z~1, a crucial epoch which some have…

Astrophysics · Physics 2007-05-23 M. Doherty , A. Bunker , R. Sharp , G. Dalton , I. Parry , I. Lewis , E. MacDonald , C. Wolf