An international team of astronomers utilizing the powerful James Webb Space Telescope has made a groundbreaking discovery in the remnants of a recent supernova, SN 1987A. The supernova, which took place 160,000 light-years away in the Large Magellanic Cloud, is the most recent observable supernova within the Local Group of galaxies.
Prior to the supernova event, observations of a burst of neutrinos hinted at the presence of a neutron star or black hole. However, it wasn’t until the recent study conducted in July 2022 using Webb’s specialized instruments that direct evidence of a neutron star was uncovered.
The team’s analysis of the spectra captured by Webb revealed the presence of ionized argon, indicating the existence of a newborn neutron star within the supernova remnants. The ionized argon atoms were likely a result of radiation from a cooling neutron star or a pulsar wind nebula, both scenarios pointing towards the presence of a neutron star.
This discovery resolves a longstanding mystery of over 30 years surrounding the nature of SN 1987A’s core and offers valuable insights into the formation of supernovae. The findings of the study were published in the prestigious journal Science on February 22, 2024, marking a significant breakthrough in the field of astronomy and supernova research.
The confirmation of a neutron star in the remnants of SN 1987A showcases the capabilities of the James Webb Space Telescope and underscores the importance of continued exploration and research in deep space. This remarkable discovery opens up new possibilities and avenues for studying the complex and fascinating phenomena of supernovae.
