Raffaella Margutti, Northwestern, "Astronomical Transients that defy all classification schemes"
Astro Tuesday: February 28 @ 12PM, ERC 501
Observations are drawing a complex picture of the latest stages of massive stars evolution and their explosions. In this seminar I concentrate on two among the least understood aspects of stellar evolution, adopting an observational perspective: How do massive stars loose a significant fraction of their mass in the years preceding the explosion?