Current Status

20cm GOODS observations

Deep (rms ~ 14µJy) 20 cm (1.4 GHz) observations of a small region around the GOODS field in the CDFS have been published by Afonso et al 2006.

20cm CDFS observations

The first half of the 20cm (1.4 GHz) observations of the extended (~3.7 square degrees) SWIRE field around CDFS have been completed and have been published by Norris et al. 2006). They have a typical rms of 20-40µJy, have detected 784 radio components, corresponding to 726 discrete sources, and are producing plenty of new results. All the data have been placed in the public domain.

We plan to go deeper, but have suspended observing for the deeper observations pending the resolution of a calibration problem which threatens to limit our rms (and will also be a problem for next-generation instruments such as SKA and xNTD). We believe the problem is related to the non-circular symmetry of the primary beam, and will require new algorithms and software to correct it. We (Cornwell et al) are currently working on this.

20cm ELAIS-S1 observations

The first half of the 20cm (1.4 GHz) observations of the extended (~3 square degrees) SWIRE field around ELAIS-S1 have been completed and have been published by Middelberg et al. 2007. They have a typical rms of 20µJy, and have detected 1039 radio components, corresponding to 916 sources. As in the case of CDFS, we do not plan to go any deeper until the calibration problem has been fixed.

13cm observations

In order to measure spectral indices and polarisation of the sources detected at 20cm, we also plan to observe all our fields at 13 cm (2.3 GHz).

The 13 cm observations of the CDFS are almost complete but have not yet been analysed. We plan to propose 13 cm observations of the ELAIS-S1 field in late 2007.

50cm (GMRT) observations

We observed a few of our sources at GMRT in February 2007 at 50cm (610MHz) and analysis of these data is underway. We hope to extend the GMRT observations in the future.

Optical Spectroscopy

We have obtained redshifts and spectral (BPT) classifications for about 80 sources using AAOmega service time, and plan extensive spectroscopy observations in the future.

VLBI

We have made VLBI observations of a few of our sources (Norris et al 2007), and more are scheduled in mid-2007. We hope in the future to start an extensive VLBI program on all sources in our field.

HDF-S observations

In an earlier project, we made deep (rms ~ 10µJy) observations of the Hubble Deep Field South at 20, 13, 6,and 3 cm. Further information (including the data relase) is here.

Other

A number of other programs and analyses, including obtaining photometric redshifts and SEDS, are also continuing.