A millisecond pulsar candidate in a 21-h orbit: 3FGL J0212.1+5320
A millisecond pulsar candidate in a 21-h orbit: 3FGL J0212.1+5320
We present the discovery of a variable optical counterpart to the unidentified gamma-ray source 3FGL J0212.1+5320, and argue this is a new compact binary millisecond pulsar (MSP) candidate. We show 3FGL J0212.1+5320 hosts a semi-detached binary with a 0.86955$\pm$0.00015 d orbital period and a F6-type companion star at an estimated …