Table 5.
Overview of radio continuum and polarisation properties for NGC 3125 and IC 4662.
| NGC 3125 | IC 4662 | |
|---|---|---|
| Radio continuum properties | ||
| Angular resolution/″ | 7.3 × 3.5 | 7.4 × 2.9 |
| Noise level/μJy/beam | 11 | 11 |
| Path length/kpc | 2.1 ± 0.2 | 0.9 ± 0.1 |
| Stot, 1.28 GHz/mJy | 24.792 ± 2.479 | 28.055 ± 2.806 |
| Stot, 2.1 GHz/mJy | 17.306 ± 1.731 | 25.443 ± 2.544 |
| αtot,1.28−2.1 GHz | −0.726 ± 0.286 | −0.197 ± 0.286 |
| Snth, 1.28 GHz/mJy | 21.799 ± 4.360 | 17.708 ± 3.541 |
| Snth, 2.1 GHz/mJy | 14.247 ± 2.850 | 15.784 ± 3.156 |
| αnth,1.28−2.1 GHz | −0.859 ± 0.554 | −0.232 ± 0.596 |
| ⟨Beq, 2.1 GHz⟩/μG | 14.70−0.69+0.76 | 15.48−0.79+1.04( † ) |
| Polarisation properties | ||
| Frequency range/MHz | [1323, 2869] | [1489, 2869] |
| nimages | 1450 | 1311 |
| Resolution/rad m−2 | 83.290 | 90.206 |
| Scale/rad m−2 | 319.437 | 319.436 |
| Φ/rad m−2 | 106453.903 | 112381.847 |
| λ2/rad m−2 | 0.0217 | 0.0202 |
| PI/μJy | 34.2 ± 3.5 | 121.6 ± 27.5 |
Notes. ( † )Equipartition magnetic field strength assuming a non-thermal spectral index of −0.7
This overview includes the beam resolution, noise levels of the ATCA total radio continuum maps, and the estimated path length for both dwarf galaxies. The total and non-thermal flux densities from 1.28 GHz (MeerKAT) and 2.1 GHz (ATCA) data are provided, along with the calculated total and non-thermal spectral indices between these frequencies. Additionally, the equipartition magnetic field strength is reported. For the polarisation properties, we present the frequency range and number of images used for RM synthesis, the resolution in Faraday depth space, the maximum observable scale, the maximum observed Faraday depth, the observing wavelengths, and the polarised intensity.
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