4FGL J1544.2−2554: A new spider pulsar candidate

Open Access

Fig. 1.

Individual 1 $\overset{'}{.}$ $\overset{\prime }{.}$ 5 × 1 $\overset{'}{.}$ $\overset{\prime }{.}$ 5 R_c-band images of the J1544 field obtained with the OAN-SPM 2.1-m telescope near the maximum (left) and minimum (right) brightness phases. The optical counterpart candidate is shown with an arrow. The circle with a radius of 3″indicates the 1σ position uncertainty of 4eRASS J154415.4−255531 proposed as the X-ray counterpart (Mayer & Becker 2024).

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