activity
20242026
collaborators

5 papers

astro-ph.SR2026

A Highly Magnetic Ultra Massive White Dwarf with a 23-minute Rotation Period

Jincheng Guo, Xiaofeng Wang, Qichun Liu +17

We present a physical characterization of TMTS J00063798+3104160 (J0006), a rapidly rotating,ultra-massive white dwarf (WD) identified in high-cadence light curves from the Tsinghu…

astro-ph.HE2025

Spectral Hardening Reveals Afterglow Emergence in Long-Duration Fast X-ray Transients: A Case Study of GRB 250404A/EP250404a

Yi-Han Iris Yin, Yuan Fang, Bin-Bin Zhang +56

The prompt emission and afterglow phases of gamma-ray bursts (GRBs) have been extensively studied, yet the transition between these two phases remains inadequately characterized du…

astro-ph.SR2025

A post-common-envelope binary with double-peaked Balmer emission lines from TMTS

Qichun Liu, Xiaofeng Wang, Jie Lin +20

The dynamical method provides an efficient way to discover post-common-envelope binaries (PCEB) with faint white dwarfs (WDs), thanks to the development of time-domain survey proje…

astro-ph.SR2025

Investigating the Period-Luminosity Relations of delta Scuti Stars: A Pathway to Distance and 3-D Dust Map Inference

Fangzhou Guo, Joshua S. Bloom, Xiaofeng Wang +12

While delta Scuti stars are the most numerous class of kappa-mechanism pulsators in the instability strip, the short periods and small peak-to-peak amplitudes have left them unders…

astro-ph.SR2024

Minute-cadence Observations of the LAMOST Fields with the TMTS: VI. Absolute Physical Parameters of Contact Binaries

Qiqi Xia, Xiaofeng Wang, Kai Li +16

With the development of wide-field surveys, a large amount of data on short-period W UMa contact binaries have been obtained. Continuous and uninterrupted light curves as well as h…