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Two new millisecond pulsars discovered in globular cluster NGC 6440

Neutron stars are more common in globular clusters than in the rest of the galaxy. Astronomers now discovered two new neutron stars with rapid spin in globular cluster NGC 6440.



One of the newly discovered pulsars is a single star that rotates once every 5.22 milliseconds. The second one is accompanied by a very light secondary object. Astronomers led by Laila Vleeschower believe that it is a black widow system, where the neutron star consumes material from its companion.

Globular cluster NGC 6440 is a tight group of stars some 27 thousand light years away.
Star clusters
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