Left: result of the pulsar spin period search trials around PSR A’s radio ephemeris solution. The most significant X-ray pulsed detection corresponds to a ﹩{Z}_{2}^{2}﹩-test value of ∼1200 and is precisely aligned (within ∼10⁻¹³ s) with the radio period indicated by the dashed vertical line. Top right: background-subtracted light curve of PSR A for the energy band 0.15–3.0 keV (in red) and two sub-bands at low (0.15–0.5 keV, green) and high (0.8–3.0 keV, blue) energies, resulting from epoch folding of all available EPIC-pn data (2006+2011). Bottom right: phase-resolved hardness ratio between the hard (0.8–3.0 keV) and soft (0.15–0.3 keV) energy bands.