Table 2.
X-rays, optical, and radio photometry of EP250207b.
| X-rays | |||||
|---|---|---|---|---|---|
| Mid-time | Exposure | Telescope | Instrument | Band | Unabsorbed flux |
| (days) | (ks) | (keV) | (10−14 erg cm−2 s−1) | ||
| 0.71 | 3 | EP | FXT | 0.3–10 | 28.0 ± 5.0 |
| 1.86 | 5 | EP | FXT | 0.3–10 | 4.0 ± 1.0 |
| 2.5 | 9 | EP | FXT | 0.3–10 | 3.2 ± 0.7 |
| 4.90 | 24 | Chandra | ACIS-S | 0.3–10 | 0.4 ± 0.2 |
| Optical/nIR | |||||
| Mid-time | Exposure | Telescope | Instrument | Filter | Magnitude |
| (days) | (s) | (AB) | |||
| 4.31 | 480 | GTC | OSIRIS | z | > 23.8 |
| 7.42 | 2020 | HST 1 | WFC3 | F606W | 28.0 ± 0.5 |
| 7.42 | 2212 | HST | WFC3 | F105W | 26.6 ± 0.2 |
| 7.42 | 2212 | HST | WFC3 | F125W | 26.8 ± 0.3 |
| 8.74 | 2212 | HST | WFC3 | F160W | 27.1 ± 0.3 |
| 8.66 | 819 | GTC | EMIR | J | > 23.5 |
| 8.70 | 1461 | GTC | EMIR | Ks | > 23.7 |
| 9.16 | 462 | GTC | EMIR | H | > 24.0 |
| 11.27 | 1404 | GTC | EMIR | Ks | > 23.2 |
| 12.48 | 1800 | LBT | LBC | r | > 25.8 |
| 12.48 | 1800 | LBT | LBC | i | > 24.9 |
| 23.26 | 1800 | VLT | FORS2 | i | > 25.1 |
| 23.28 | 1800 | VLT | HAWKI | Ks | > 23.8 |
| Radio | |||||
| Mid-time | Exposure | Telescope | Array | Band | Flux Density |
| (days) | (h) | (μJy) | |||
| 4.40 | 0.50 | VLA | A | 6.0 GHz | < 21 |
| 7.41 | 0.67 | VLA | A −> D | 6.0 GHz | < 174 |
| 11.78 | 6.65 | ATCA | 6D | 5.5 GHz | < 39 |
| 11.78 | 6.65 | ATCA | 6D | 9.0 GHz | < 27 |
| 38.54 | 3.92 | ATCA | 6D | 5.5 GHz | < 45 |
| 38.54 | 3.92 | ATCA | 6D | 9.0 GHz | < 42 |
Notes. Magnitudes are corrected by Galactic Extinction. Upper limits correspond to a 3σ confidence level.
The magnitudes quoted in the table were obtained via image subtraction (Hu et al. 2022). The values derived from aperture photometry are (AB mag): F606W = 26.41 ± 0.09, F105W = 25.75 ± 0.13, F125W = 26.83 ± 0.08, F160W = 25.82 ± 0.11. In the second epoch, we estimate F606W = 26.90 ± 0.10, F105W = 26.59 ± 0.16, F125W = 26.67 ± 0.19, F160W = 26.29 ± 0.16.
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