Image Details
Caption: Figure 8.
XMM-Newton EPIC MOS1/2 images of PSRs J0437−4715 (top left), J0030+0451 (top right), J1231−1411 (bottom left), and J2124−3358 (bottom right) and nearby sources marked with blue circles. The large dashed yellow circle indicates the NICER point-spread function with half-power diameter of 6.′2. For PSRs J0437−4715 and J2124−3358, the teal “×” shows the position of the optimal NICER pointing that maximizes the S/N from the pulsar, i.e., minimizes the contamination from surrounding sources. For the other two pulsars, PSRs J0030+0451 and J1231−1411, the optimal pointing distance from the pulsar and the gain in S/N are negligible.
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