Radio Images of the Globular Cluster 47 Tucanae

D. McConnell, R. Deacon and J. G. Ables

Abstract

Received 2000 December 18, accepted 2001 February 5

We present deep ATCA radio images of the globular cluster 47 Tucanae made at 1.4 and 1.7 GHz and identify 9 compact sources in the cluster core with 11 pulsars. At present there are several pulsars for which pulse timing analyses have not yet yielded precise positions. We examine other sources in the image, and on the basis of their spectral index find two that would possibly correspond to the pulsars with undetermined positions.

Keywords: pulsars: general — globular clusters: individual (47 Tucanae) — radio continuum: stars

Publications of the Astronomical Society of Australia 18(2) 136 - 139 (2001) doi:10.1071/AS01030