An international team of astronomers, led by PhD student Erik Kool of Macquarie University in Australia, used laser guide star imaging on the Gemini South telescope to study why we don't see as many of these core - collapse supernovae as expected.
The researchers made their discovery by obtaining spectroscopic measurements of S0 - 2 using W. M. Keck Observatory's OH - Suppressing Infrared Imaging Spectrograph (OSIRIS) and Laser GuideStar Adaptive Optics.