4FGL J1544.2−2554: A new spider pulsar candidate A. V. Karpova, S. V. Zharikov, D. A. Zyuzin, A. Yu. Kirichenko, Yu. A. Shibanov and I. F. Márquez A&A, 693 (2025) A158 Published online: 14 January 2025 DOI: 10.1051/0004-6361/202452333