Millisecond pulsars (MSPs) are evolved neutron stars with short spin periods that have gone through a long period of mass transfer in a low-mass X-ray binary phase. Globular clusters (GCs)--conglomerations of tens of thousands or millions of stars--are prolific environments for the formation of MSPs. However, in NGC 6397--one of two GCs closest to Earth--only one MSP had been identified until recently.
Millisecond pulsars (MSPs) are evolved neutron stars with short spin periods that have gone through a long period of mass transfer in a low-mass X-ray binary phase. Globular clusters (GCs)--conglomerations of tens of thousands or millions of stars--are prolific environments for the formation of MSPs. However, in NGC 6397--one of two GCs closest to Earth--only one MSP had been identified until recently.
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