A new member of a category of star so rare we can count the known number of them on our fingers and toes has just been discovered in the Milky Way.
), an X-ray NASA instrument also mounted to the ISS, in an investigation led by astrophysicist Peter Bult of NASA's Goddard Space Flight Center.
And this is where things started to get really interesting. NICER picked up X-ray pulsations at 528.6 Hz – suggesting that the thing is spinning at a rate of 528.6 times per second – in addition to an X-ray thermonuclear burst.,"shows that MAXI J1816-195 is a neutron star and a new accreting millisecond X-ray pulsar."are built alike. At the very basic level, a pulsar is a type of neutron star, which is the collapsed core of a dead massive star that has gone supernova.
In some cases, the accretion process can spin up the pulsar to millisecond rotational speeds. This is the accreting X-ray millisecond pulsar, and it appears that MAXI J1816-195 belongs to this rare category. The thermonuclear X-ray burst detected by NICER was likely the result of the unstable thermonuclear burning of material accumulated by the companion star.
Since the discovery is so new, observations in multiple wavelengths are ongoing. Follow-up has already
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