Welcome!

Colorful cosmic fireworks in the sky, shining bright as the night rolls by... 

I'm an astrophysicist and ITC Fellow at the Center for Astrophysics | Harvard & Smithsonian (CfA). Previously I was in the Theoretical Astrophysics group (TAPIR) at Caltech as a Burke Fellow.

I spend a lot of my time thinking about the lives of massive stars and their afterlives (supernovae, black holes, neutron stars), and their roles in various astrophysical phenomena throughout the universe. 

As a theorist I also enjoy broadly exploring the mysteries that latest observations bring us. I've worked on proposing new models for the observed peculiar stellar explosions, and understanding the final years of massive stars, dramas in close binaries, and the surprising JWST galaxies. While part of my time is coding and thinking (and daydreaming...) at my desk, I engage a lot in discussions with observer and theorist colleagues to understand these phenomena deeper, and to learn new things!

I received my PhD in 2022 from the University of Tokyo. For details please check the most recent version of my CV, and my Research page.

Contact:

Email: daichi (__dot__) tsuna (__at__) cfa.harvard.edu

I am very happy collaborating with people (and dogs!)

2026 Schedule 

Jan: Tokyo (visa renewal)

Feb: Kyoto (conference)

late Mar: Gainesville, FL (talk)

mid-late May: Caltech/Carnegie/UCSD/UC Berkeley (research visit)