Two black widow pulsars in the optical and X-rays

A. V. Bobakov, A. Yu. Kirichenko, S. V. Zharikov +5

Context. Two millisecond pulsars, PSR J1513$-$2550 and PSR J2017$-$1614, with spin periods of about 2.1 and 2.3 ms were recently discovered in the radio and $\gamma$-rays and classified…