activity
20232026
most citedA seven-Earth-radius helium-burning star inside a 20.5-min detached binary

16 citations · 16 across the 10 of their papers we have counts for

collaborators

11 papers

astro-ph.HE2026

When will T Coronae Borealis next erupt as a nova? Constraints from recurrence, orbital phase, and accretion-state evolution

Songpeng Pei, Xiaowan Zhang, Renzhi Su +6

T Coronae Borealis (T CrB) is the nearest symbiotic recurrent nova and is now intensively monitored for its next eruption. We combine three constraints on the eruption time: histor…

astro-ph.HE2026

Lack of Significant Orbital-Phase Locking in the Active Phases of the Recurrent Nova T CrB

Songpeng Pei, Xiaowan Zhang, Renzhi Su +6

T Coronae Borealis (T CrB) is a symbiotic recurrent nova (RN) that exhibits both nova eruptions and long-term active phases resembling superoutbursts and normal outbursts. Motivate…

astro-ph.HE2026

Spectral Dataset of Stripped-Envelope Supernovae from the Tsinghua Supernova Group

Danfeng Xiang, Xiaofeng Wang, Jujia Zhang +40

The extent of envelope stripping in the progenitor stars is directly reflected in the diversity of spectral features observed in stripped-envelope supernovae (SESNe). Through exten…

astro-ph.HE2025

Multi-wavelength study of the pre-eruption dip in the recurrent nova T Coronae Borealis preceding imminent nova eruption

Songpeng Pei, Xiaowan Zhang, Renzhi Su +6

We present a multi-wavelength study of the symbiotic recurrent nova (RN) T Coronae Borealis (T CrB) using Swift Burst Alert Telescope (BAT) / X-Ray Telescope (XRT) / UltraViolet Op…

astro-ph.HE2025

Temporal variability and obscuration effects in the X-ray emission of classical nova V339 Delphini (Nova Delphini 2013)

Songpeng Pei, Nataly Ospina, Xiaowan Zhang +4

In this study, we present a detailed analysis of public archival soft X-ray data on the classical nova V339 Delphini (Nova Del 2013) during its outburst, obtained using the {\it Ch…

astro-ph.HE2025

Timing and spectral analysis of GK Persei during the 2010 dwarf nova outburst

Songpeng Pei, Xiaowan Zhang, Qiang Li +3

GK Persei, an old nova and intermediate polar (IP), exhibited a dwarf nova (DN) outburst in 2010. This outburst was extensively observed by the Neil Gehrels Swift Observatory, begi…

astro-ph.SR2024

Minute-Cadence Observations of the LAMOST Fields with the TMTS: IV -- Catalog of Cataclysmic Variables from the First 3-yr Survey

Qichun Liu, Jie Lin, Xiaofeng Wang +24

The Tsinghua University--Ma Huateng Telescopes for Survey (TMTS) started to monitor the LAMOST plates in 2020, leading to the discovery of numerous short-period eclipsing binaries,…

astro-ph.IM2024

Tianyu: search for the second solar system and explore the dynamic universe

Fabo Feng, Yicheng Rui, Zhimao Du +32

Giant planets like Jupiter and Saturn, play important roles in the formation and habitability of Earth-like planets. The detection of solar system analogs that have multiple cold g…

astro-ph.SR2024

Minute-Cadence Observations of the LAMOST Fields with the TMTS V. Machine Learning Classification of TMTS Catalogues of Periodic Variable Stars

Fangzhou Guo, Jie Lin, Xiaofeng Wang +17

Periodic variables are always of great scientific interest in astrophysics. Thanks to the rapid advancement of modern large-scale time-domain surveys, the number of reported variab…

astro-ph.HE2024

A spectral data release for 104 Type II Supernovae from the Tsinghua Supernova Group

Han Lin, Xiaofeng Wang, Jujia Zhang +33

We present 206 unpublished optical spectra of 104 type II supernovae obtained by the Xinglong 2.16m telescope and Lijiang 2.4m telescope during the period from 2011 to 2018, spanni…

astro-ph.SR2023★ 16 cited

A seven-Earth-radius helium-burning star inside a 20.5-min detached binary

Jie Lin, Chengyuan Wu, Heran Xiong +28

Binary evolution theory predicts that the second common envelope (CE) ejection can produce low-mass (0.32-0.36 Msun) subdwarf B (sdB) stars inside ultrashort-orbital-period binary…