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Table 1.

Observation list and line-fitting results.

Short ObsID Date (Texp in ks) HJD ϕ Corc Corb Fluorescence Fe XXV and Fe XXVI lines
name 20100+ −2460000. (km s−1) (km s−1) shiftf σGf shifti σGi kTi AFei
(km s−1) (km s−1) (km s−1) (km s−1) (keV)
June 25 201 2025-06-16T23:46:54 (46.5) 843.488 0.11 +0.6 +12.9 175 ± 21 170 ± 28 121 ± 19 366 ± 23 8.22 ± 0.22 0.234 ± 0.012
Dec 24 301 2024-12-29T14:16:44 (34.4) 674.097 0.28 +10.3 –16.2 128 ± 32 244 ± 42 123 ± 23 414 ± 30 8.31 ± 0.24 0.269 ± 0.016
Feb 25 401 2025-02-15T19:45:34 (59.3) 722.322 0.52 –12.2 –19.4 27 ± 18 177 ± 20 34 ± 23 495 ± 32 8.43 ± 0.19 0.236 ± 0.012

Notes. The second column provides the observation identifier; the third, the date at mid-exposure (exposure length in parentheses); and the next two columns, the corresponding heliocentric Julian date and orbital phase ϕ computed from the recent ephemerides of Nazé et al. (2025). The following two columns give the corrections due to refined calibration based on Mn Kα and to Earth motion around the Sun. The next two columns provide the shift and Gaussian broadening measured on spectra with five-channel binning using the neutral iron model with seven components (see text for details). The last columns yield the shift, Gaussian broadening, temperature, and iron abundance (with respect to hydrogen and to the solar ratio) derived from fitting the highly ionised iron lines with a thermal plasma model (see text for details). Velocity shift values include the required corrections and all provided errors are ±1σ uncertainties.

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