12 citations · 31 across the 10 of their papers we have counts for
10 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…
Discovery and Extensive Follow-Up of SN 2024ggi, a nearby type IIP supernova in NGC 3621
Ting-Wan Chen, Sheng Yang, Shubham Srivastav +45
We present the discovery and early observations of the nearby Type II supernova (SN) 2024ggi in NGC 3621 at 6.64 +/- 0.3 Mpc. The SN was caught 5.8 (+1.9 -2.9) hours after its expl…
Stellar Population near NGC 2021: Procession of Star Formation in the South Rim of Supergiant Shell LMC 4
Po-Sheng Ou, Rui-Ching Chao, You-Hua Chu +2
Supergiant shells (SGSs) are the largest interstellar structures where heated and enriched gas flows into the host galaxy's halo. The SGSs in the Large Magellanic Cloud (LMC) are s…
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…
The Evolution of Population III and Extremely Metal-Poor Binary Stars
Sung-Han Tsai, Ke-Jung Chen, Daniel Whalen +2
Numerical simulations have now shown that Population III (Pop III) stars can form in binaries and small clusters and that these stars can be in close proximity to each other. If so…
How Population III Supernovae Determined the Properties of the First Galaxies
Ke-Jung Chen, Ching-Yao Tang, Daniel J. Whalen +4
Massive Pop III stars can die as energetic supernovae that enrich the early universe with metals and determine the properties of the first galaxies. With masses of about Msu…
Critical Metallicity of Cool Supergiant Formation. I. Effects on Stellar Mass Loss and Feedback
Po-Sheng Ou, Ke-Jung Chen, You-Hua Chu +1
This paper systematically studies the relation between metallicity and mass loss of massive stars. We perform one-dimensional stellar evolution simulations and build a grid of $\si…
Searching for Balmer-dominated Type Ia Supernova Remnants in M33
Chris Ding-Jyun Lin, You-Hua Chu, Po-Sheng Ou +1
We have searched for Balmer-dominated Type Ia SNRs in M33 by selecting thermal X-ray sources with ergs s, identifying associated H emission…