4 papers
Interacting Binary Stars as Progenitors for Interacting Supernovae
Sung-Han Tsai, Ke-Jung Chen, Keiichi Maeda +2
Dense, compact circumstellar media (CSM) are required to power strongly interacting supernovae, yet their physical origin remains uncertain. We present a systematic study of binary…
Why Do Stars Turn Red? II. Steady-State Envelope Solutions
Po-Sheng Ou, Ke-Jung Chen
The physical origin of red giants (RGs) and red supergiants (RSGs) remains a fundamental question in stellar astrophysics. In Paper II of this series, we investigate the physical m…
Why Do Stars Turn Red? I. Post-Main-Sequence Expansion Mechanism
Po-Sheng Ou, Ke-Jung Chen
In this series of papers, we address the long-standing question of why post-main-sequence stars expand into red giants (RGs) or red supergiants (RSGs). This paper aims to identify…
Modeling the Progenitor Stars of Observed IIP Supernovae
Kai-An You, Ke-Jung Chen, Yen-Chen Pan +2
Type IIP supernovae (SNe IIP) are thought to originate from the explosion of massive stars > 10 Msun. Their luminosity is primarily powered by the explosion energy and the radioact…