SN 2017egm is a helium-rich superluminous supernova, study finds

Using various ground-based and space observatories, an international team of astronomers has investigated a nearby supernova designated SN 2017egm. As a result, they found that the inspected explosion belongs to a rare group of helium-rich superluminous supernovae. The finding is reported in a paper published March 6 on the arXiv pre-print server.  Read More