Seminar: Supernova 1987A in the era of JWST

  • Date: –15:00
  • Location: Ångströmlaboratoriet, Lägerhyddsvägen 1 10101 Siegbahnsalen
  • Lecturer: Josefin Larsson, KTH Royal Institute of Technology
  • Organiser: Division of Astronomy and Space Physics, Department of Physics and Astronomy
  • Contact person: Adam Rains
  • Seminarium

In 1987, the nearest supernova (SN) since the advent of modern telescopes occurred in the Large Magellanic Cloud, providing us with a unique opportunity to study the explosive death of a massive star and the birth of a SN remnant. Recent observations by JWST have now greatly advanced our understanding of this iconic event. The observations show the presence of narrow lines from highly ionised argon and sulphur at the very center of the remnant, which provides the first clear electromagnetic signal from the compact object created in the explosion. In addition, we have obtained a wealth of new information about the ejecta and interaction with the circumstellar medium, including the full 3D morphology. These results give new insights into the properties of the progenitor and the explosion.


We shall leave for lunch at around 12:15. There will be fika after the seminar.

Last modified: 2022-12-12