Data for these 130 sources in common are presented in Table 1.
Columns 2 and 3 give the radio source and IRAS source names respectively.
Column 4 lists the source radio flux density at 4.75 GHz. For 12 sources
the flux density at 4.75 GHz was estimated by interpolation from other
radio frequencies; these sources are flagged in Col. 4.
The IR data, that is the flux at 60 m and the IR spectral index (), are listed for each source in Col. 5 and Col. 7 respectively. Estimates of the of each IR source are based on flux densities listed in Schwering & Israel (1990). The IR spectral index is defined by the relationship , where is the flux density and is the frequency. The integrated flux densities at the various IR frequencies were plotted as Log() versus Log() and (for most sources) straight lines were fitted with a simple linear regression to produce the best estimates of spectral index.
Column 6 lists the source radio spectral index ()and error () defined as for the IR spectral index in the previous paragraph. Radio spectral indices are not given for 13 sources which were detected at only one radio frequency. For one IR source no IR spectral index is given since it was detected at only one IR frequency.
Column 8 of Table 1 gives the "radio source type''. Sources are denoted as BG (background sources), Hii regions and SNRs. Note that upper case letters (BG, SNR and Hii) are used for classifications from previous works and lower case (bg, hii and snr) for sources classified here. The question-mark indicates probable but not certain classification. The criteria by which we classify these sources are discussed in Sect. 5 and in Filipovic et al. (1998a; hereafter Paper VII). Other source names can be found in Papers IV, V and VI.
|Figure 1: a) The differences between radio and IR source positions for the LMC. The mean offset (radio-IR) is 165 and 45 in RA and Dec, respectively. The standard deviations are 54 and 53, respectively. The outer circle (selection criterion) is 2.5 radius and the inner dashed circle is 1 radius. b) The number of sources as a function of radio-IR source separation towards the LMC per unit area of the radial bin (per arcmin2)|
Copyright The European Southern Observatory (ESO)