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Table 1

Journal of the X-ray observations discussed in this paper.


Epoch Date EW(Hα) Eff. exposure MOS1 MOS2 pn
HJD-2 450 000 (Å) (ks) (cts s−1) (cts s−1) (cts s−1)
April 2012 6031.941 − 22.6 21.1 0.075 ± 0.002 0.077 ± 0.002 0.225 ± 0.004
March 2016 7455.896 − 8.5 23.1 0.011 ± 0.001 0.010 ± 0.001 0.037 ± 0.002


Epoch Date EW(Hα) Exposure XIS0 XIS1 XIS3
HJD-2 450 000 (Å) (ks) (cts s−1) (cts s−1) (cts s−1)

October 2014 6937.217 − 7.9 82.1 0.024 ± 0.001 0.021 ± 0.002 0.029 ± 0.001

Notes. The heliocentric Julian days are given at mid-exposure. The EW of the nearest-in-time Hα measurement is given for each observation. In the top part of the table, column 4 provides the effective exposure time of the EPIC-pn camera after discarding high background episodes. The net count rates for the EPIC instruments are given over the 0.4–10 keV energy band. These count rates were obtained with the edetectchain command and correspond to equivalent on-axis count rates over the full PSF. In the lower part of the table, the net XIS count rates are given inside the source extraction region and over the full energy band of the XIS detectors.

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