Neutron Stars
Astronomers have uncovered evidence that a black hole and neutron star merged while following an unusual oval-shaped orbit, challenging expectations of circular paths in such events. The discovery comes from a reanalysis of gravitational wave data from the event known as GW200105. This finding suggests the system formed in a dynamic stellar environment.
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Astronomers have observed dramatic changes in the neutron star P13 over a decade, as it transitioned from a faint state to high luminosity. Located in the galaxy NGC 7793, about 10 million light-years away, P13's X-ray output and rotation rate shifted significantly. These observations provide new insights into supercritical accretion processes.
November 10, 2025 22:13