Table 7.
Polarization properties of all four relics in the cluster Abell 2744.
| Source | VLA | RM range | ⟨σRM⟩ | |
|---|---|---|---|---|
| S-band | L-band | |||
| P3.0 GHz | P1.5 GHz | |||
| (%) | (%) | (rad m−2) | (rad m−2) | |
| R1 | 30 ± 4 | 19 ± 2 | +1 to +19 | 5 ± 1 |
| R2 | 34 ± 4 | 27 ± 3 | +4 to +16 | 4 ± 1 |
| R3 | 32 ± 3 | 13 ± 2 | −2 to +18 | 6 ± 2 |
| R4 | 25 ± 2 | 8 ± 1 | − | − |
Notes. The mean fractional polarization for the main relic R1 is measured from 10″ resolution image. We note that our S-band polarization value of R1 is slightly higher than those obtained by Pearce et al. (2017) because we measured polarization fraction from Faraday corrected S-band images. Since the polarized emission from the fainter relics R2, R3, and R4 are recovered well in low resolution images therefore, we report the mean fractional polarization measured from 15″ resolution maps.
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