Neutron stars are ultra-dense star remnants made up primarily of nucleons (i.e., protons and neutrons). Over the course of ...

Astronomers tracked a decade of dramatic changes in P13, a neutron star undergoing supercritical accretion. Its X-ray ...

A research team has investigated long-term X-ray variability in the neutron star NGC 7793 P13, an object thought to be driven ...

A distant neutron star unexpectedly reawakened, unleashing a powerful X-ray surge that may reveal how the universe’s most extreme stars feed.

Astronomers have recorded a unique awakening of the neutron star P13. Over the course of a decade, its X-ray brightness has ...

Neutron star NGC 7793 P13’s decade-long monitoring shows huge X-ray and spin changes, providing clues to supercritical ...

Columbia Professor Brian Metzger helped other astronomers interpret their observations of the unexpected stellar event.

It weighs more than 2 times the mass of our sun, but is only 18 miles wide. Astronomers have discovered the "most massive neutron star ever measured," amassing to more than two times the mass of our ...

When gas falls onto a compact object, such as a neutron star or black hole, due to its strong gravity (a process called ...