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Equation Of State

All articles tagged with #equation of state

space1 month ago

Sun’s mass squeezed into a city-sized neutron star

Neutron stars cram roughly 1–2 solar masses into a sphere about 20 km across; a sugar-cube of their matter would weigh around a billion tonnes on Earth. This extreme density pushes matter to nuclear scales, making neutron stars natural laboratories for ultra-dense matter and helping constrain the equation of state, with many such stars acting as pulsars or magnetars.

Neutron Stars May Harbor the Big Bang’s Quark–Gluon Plasma
astronomy5 months ago

Neutron Stars May Harbor the Big Bang’s Quark–Gluon Plasma

Scientists propose that the ultra-dense interiors of neutron stars could contain quark-gluon plasma—the same state of matter that existed moments after the Big Bang—and by analyzing how tidal forces in binary neutron-star systems imprint oscillation modes on gravitational waves, researchers hope to infer the stars’ interior structure and their equation of state, though current detectors aren’t yet sensitive enough; next‑generation observatories may confirm the presence of this exotic matter.