4 papers
An Attempt to Search for Unintended Electromagnetic Radiation from Starlink Satellites with the 21 Centimeter Array: Methodology and RFI Characterization
Xupiao Yang, Qijun Zhi, Yanbin Yang +6
The rapid expansion of low-Earth-orbit (LEO) megaconstellations introduces new risks to radio astronomy from unintended electromagnetic radiation (UEMR). In this work, we present a…
TransFit-CSM: A Fast, Physically Consistent Framework for Interaction-Powered Transients
Yu-Hao Zhang, Liang-Duan Liu, Ze-Xin Du +3
We present TransFit-CSM, a fast and physically consistent framework for modeling interaction-powered transients. The method self-consistently couples the ejecta circumstellar mediu…
Lightcurve Features of Magnetar-Powered Superluminous Supernovae with Gravitational-Wave Emission and High-Energy Leakage
Jinghao Zhang, Yacheng Kang, Jiahang Zhong +4
Superluminous supernovae (SLSNe) are a distinct class of stellar explosions, exhibiting peak luminosities 10-100 times brighter than those of normal SNe. Their extreme luminosities…
TransFit: An Efficient Framework for Transient Light-Curve Fitting with Time-Dependent Radiative Diffusion
Liang-Duan Liu, Yu-Hao Zhang, Yun-Wei Yu +4
Modeling the light curves (LCs) of luminous astronomical transients, such as supernovae, is crucial for understanding their progenitor physics, particularly with the exponential gr…