A neutron star is the collapsed core of a supergiant star that's gone supernova. Pulsar neutron stars, like the one astronomers believe SN 1987A left behind, emit pulses of X-rays. AdvertisementStudying SN 1987A has deepened astronomers' understanding of supernovae and the role they play in our ever-evolving universe. Before JWST, astronomers lacked a telescope powerful enough to observe the compact object that SN 1987A left behind. Advertisement"We interpreted this as being conclusive evidence that the emission lines we were seeing were the result of radiation from the neutron center," Kavanagh said.

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Persons: What's, James Webb, David Malin AAT, Patrick Kavanagh, Everest, hadn't, Kavanagh, SN1987A, Chandra, ALMA, JWST, J, Larsson, Claes Fransson, P.J . Kavanagh, " Kavanagh Organizations: Business, Science, Maynooth University, American Association for, Advancement of Science, NASA, Wikimedia, SN, Hubble, ESA, Stockholm University