1 Introduction

The SMC was the subject of several recent high resolution surveys in different wavelength bands. A CO survey of the SMC was produced by Rubio et al. (1993a,b). Recent H$\alpha$ surveys were performed by Coarer et al. (1993) and Caplan et al. (1996) (see also Davies et al. 1976). At radio frequencies a neutral Hydrogen survey at 1.4 GHz (Staveley-Smith et al. 1997) and continuum surveys at 1.4 and 2.3 GHz (Filipovic et al. in preparation) were made with the Compact Array of the Australia Telescope National Facility. Also, Parkes radio surveys of the SMC were undertaken by Filipovic et al. (1997).

Early X-ray surveys were performed with the Einstein satellite (Seward & Mitchell 1981; Inoue et al. 1983; Bruhweiler et al. 1987; Wang & Wu 1992). Wang & Wu (1992) found 20 sources from a sample of 70 sources to be intrinsic to the SMC. Filipovic et al. (1998) compared the Parkes radio catalogue with the ROSAT PSPC catalogue presented in this paper and found 27 sources common to these two surveys.

Our aim in this paper is to present the first-pass catalogue of ROSAT X-ray sources in the SMC region with their basic properties and classification. This catalogue is given in Table 1. We classify about 60% of the sources by making use of X-ray spectral parameters and correlations with optical, radio and other X-ray catalogues. Each source class is discussed separately in terms of statistical properties.

 

Table 1: ROSAT PSPC Point Source Catalogue of the SMC

 

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