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Recent Podcast
A Quick Look at a New Signal for a Neutron Star Collision Discovered
A Quick Look at a New Signal for a Neutron Star Collision Discovered
A bright blast of X-rays from a source in a distant galaxy has led astronomers to a fascinating discovery. (2019-04-16)

A Tour of A Tour of E0102

Narrator (April Jubett, CXC): Neutron stars are the ultra dense cores of massive stars that collapse and undergo a supernova explosion. This neutron star is located within the remains of a supernova — known as 1E 0102.2-7219 (E0102 for short) — in the Small Magellanic Cloud, located 200,000 light years from Earth.

E0102's neutron star is different from most others because it has both a low magnetic field and does not have a star in orbit around it. Its remnant is also unusual because it contains high levels of oxygen like two other well-known supernova remnants, Cassiopeia A and Puppis A. These oxygen-rich supernova remnants are important for understanding how massive stars fuse lighter elements into heavier ones before they explode.

Future observations of E0102 at X-ray, optical, and radio wavelengths should help astronomers understand the origin of this lonely neutron star.

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