Padova-Asiago Supernova Group
Yongzhi Cai


I am currently a postdoctoral researcher at INAF – Osservatorio Astronomico di Padova, working as a member of the SOXS@ESO-NTT science team. My research primarily focuses on the multi-wavelength observational study of optical transients within the field of time-domain astronomy. I am deeply involved in three major international transient survey projects: NUTS2, ePESSTO+, and SOXS. I also join the Vera C. Rubin—LSST@Italy collaboration, as data rights holder. Utilizing global general-purpose telescopes, survey facilities, and space missions (such as Swift, HST, WISE, JWST), I conduct multiband observations of interacting optical transients.

We label as interacting transients those explosive events happening in the final phases of stellar life, when the fast material ejected by the star impact a pre-existing circumstellar medium. My work systematically investigates their progenitor origins, dust formation, event rates, circumstellar medium properties, and host environments, aiming to reveal the key physical processes in the late-stage evolution of massive stars. Notably, within the SOXS@ESO-NTT spectroscopic survey, I am responsible for the research on interacting transients. Furthermore, I closely collaborate with several Chinese survey projects, including the Multi-channel Photometric Survey Telescope (Mephisto) and the Wide Field Survey Telescope (WFST). Specifically, my research interests include the following types of transients:

1. Intermediate Luminosity Red Transients and Luminous Red Novae.

2. Type IIn, Ibn, and Icn Supernovae.

3. Peculiar Core-collapse Supernovae.