Dr. Avishai Gilkis
Researcher at the Astrophysics Department, Tel Aviv University
About Me
I am a stellar astrophysicist, working on the lives of massive stars, and their deaths as core-collapse supernovae. My research connects numerical simulations of stellar evolution with detailed observations of stars and supernovae.
Latest Paper
​Ups!... I did it again: unveiling the hidden companion in Upsilon Sagittarii, a unique binary system at a second mass transfer stage
First study to decipher the enigmatic hydrogen-deficient binary system Upsilon Sagittarii. We find that the bright component is a helium supergiant star, 100,000 years before becoming a white dwarf. The faint component - bright in the ultraviolet - is a rapidly rotating star, almost ten times more massive than the companion that outshines it in visible light.