Table 1.
XMM-Newton observations of XMMU J045315.1−693242, XMMU J045736.9−692727, and RX J0524.2−6620.
| Source | Obs. | Observation | Exposure time | Off-axis | RA | Dec | Err |
|---|---|---|---|---|---|---|---|
| name | ID | time | pn, MOS1, MOS2 | angle | (J2000) | 1σ | |
| (s) | (′) | (h m s) | (° ′ ″) | (″) | |||
| J0453 | 0804550201 | 2018-01-24 12:34 – 21:44 | 28 514, 0 a, 31 494 | 6.8 | 04 53 15.11 | −69 32 42.5 | 0.7 |
| J0457 | 0804550101 | 2017-11-06 03:24 – 13:17 | 32 609, 34 212, 34 193 | 7.2 | 04 57 36.91 | −69 27 27.2 | 0.5 |
| J0457 | 0841660301 | 2020-04-11 21:38 – (+1) 13:15 | 17 200, 37 635, 40 068 | 5.2 | – | – | – |
| J0524 | 0841320201 | 2019-09-30 13:40 – 21:40 | 22 459, 26 218, 26 099 | 3.8 | 05 24 11.82 | −66 20 50.7 | 0.5 |
Notes. The net exposure times after background-flare screening are listed for pn, MOS1 and MOS2, respectively. The off-axis angle is given for the EPIC-pn telescope. Observation 0841660301 was strongly affected by background flares, which significantly reduced the exposure time, in particular for EPIC-pn. No flare was present during observation 0804550101, very few during 0804550201. These two observations were used to determine the source positions. A bore-sight correction using 12 and 8 QSOs in the FoV of observations 0804550101 and 0804550201 was applied to the source coordinates (see Sect. 2.1). The positional errors include the statistical and remaining systematic errors (see Sturm et al. 2013). (a) J0453 was located on a non-functional MOS1-CCD.
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