Sivan Ginzburg

Hebrew University of Jerusalem

Hello! I am a theoretical astrophysicist at the Hebrew University.

Our group currently focuses on Stellar Evolution and White Dwarfs. Scroll down and also check the research page for more details.

We are looking for students and postdocs to join the group, please email me if you are interested.

Illustration of a star orbiting a white dwarf

Stellar Evolution

Stars evolve through a variety of stages. For example, our sun's envelope will inflate by orders of magnitude to become a red giant, leaving behind a dense white dwarf core the size of the Earth. We study the evolution of various stars, focusing on binary systems where two different stars closely orbit one another and interact.

Illustration of a crystallizing white dwarf

White Dwarfs

Over 97% of all stars, including the sun, will end their life as white dwarfs. These stellar remnants are a million times denser than the sun, such that quantum and solid-state effects become important. We study the extreme conditions inside white dwarfs, bridging condensed matter physics and precise astronomical observations.