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Table 2.
Key details for new observations of HCG15 presented in this paper.
| Telescope | Observation Date | Configuration/Mode | Spectral Coverage | On-source time |
|---|---|---|---|---|
| LOFAR | 2018 Jul. 12 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours |
| 2018 Jul. 13 | HBA_DUAL_INNER | 120 − 168 MHz | 4 hours | |
| 2018 Jul. 19 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| 2018 Sept. 01 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| 2018 Sept. 11 | HBA_DUAL_INNER | 120 − 168 MHz | 4 hours | |
| 2018 Oct. 28 | HBA_DUAL_INNER | 120 − 168 MHz | 4 hours | |
| 2019 Jul. 15 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| 2020 Jul. 02 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| 2020 Jul. 04 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| 2020 Jul. 31 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| 2020 Aug. 01 | HBA_DUAL_INNER | 120 − 168 MHz | 3 hours | |
| GMRT | 2010 Apr. 25 | − | 592 − 624 MHz | 9.3 hours |
| 2010 May 23 | − | 592 − 624 MHz | 10.6 hours | |
| 2010 Jul. 23 | − | 307 − 340 MHz | 10.1 hours | |
| 2023 Nov. 04 | − | 307 − 340 MHz | 9.3 hours | |
| 2023 Nov. 06 | − | 592 − 624 MHz | 7 hours | |
| ASKAP | 2021 Nov. 05 | − | 800 − 1088 MHz | 5 hours |
| 2021 Nov. 10 | − | 800 − 1088 MHz | 5 hours | |
| MeerKAT | 2023 Jul. 09 | − | 1.968 − 2.843 GHz | 4 hours |
| 2023 Jul. 10 | − | 1.968 − 2.843 GHz | 4 hours | |
| ATCA | 2024 May 31 | H168 | 4.5 − 6.5 GHz & 8 − 10 GHz | 2.2 hours |
| VLA | 2013 Feb. 23 | D | 4 − 6 GHz & 6 − 8 GHz | 49 minutes |
| 2013 Mar. 09 | D | 4 − 6 GHz & 6 − 8 GHz | 49 minutes | |
| 2013 Mar. 10 | D | 4 − 6 GHz & 6 − 8 GHz | 49 minutes | |
| 2024 Feb. 03 | C | 4 − 6 GHz & 6 − 8 GHz | 1.9 hours | |
| 2024 Mar. 03 | C | 4 − 6 GHz & 6 − 8 GHz | 6.9 hours | |
| HCT | 2024 Jan. 02 | HFOSC | 3800 − 6840 Å & 5800 − 8350 Å | 4 hours |
| XMM-Newton | 2014 Aug. 06 | MOS & pn | 0.15 − 12 keV | 140 ks |
Notes. The GMRT observations on 2023 Nov. 04 and 06 also took simultaneous data with the wide-band feeds, covering 250 − 500 MHz and 550 − 900 MHz. However, these data are not used in this paper.
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