Particle.news
Download on the App Store

Hubble Spots Rare Post-Starburst Galaxy Where a Black Hole Stifles New Stars

The new image offers a close test of how an active black hole can shut down star birth in a galaxy.

Overview

  • Fresh Hubble imaging, backed by other observatories, shows powerful gas outflows and a highly shocked interstellar medium in NGC 1266.
  • The lenticular galaxy in the constellation Eridanus sits about 100 million light-years away, and it is a rare post-starburst system.
  • Astronomers tie its unusual state to a minor merger about 500 million years ago that sparked a brief starburst and fed the central black hole.
  • As the nucleus turned active, its winds and jets likely stripped or shocked star-forming gas, which curtailed star birth outside the core.
  • Because such post-starburst galaxies make up less than one percent nearby, NGC 1266 serves as a valuable case to study black hole–galaxy coevolution.