299 citations · 1.2k across the 36 of their papers we have counts for
18 papers · 1 filter
Prominence activation, optical flare, and post-flare loops on the RS Canum Venaticorum star SZ Piscium
Dongtao Cao, Shenghong Gu, Jian Ge +7
We present the results of time-resolved high-resolution spectroscopic observations of the very active RS Canum Venaticorum (RS CVn) star SZ Piscium (SZ Psc), obtained during two co…
Prominence detection and chromosphere feature on the prototype RS CVn of active binary systems
Dongtao Cao, Shenghong Gu, U. Wolter +4
We present a study of high-resolution spectra of RS Canum Venaticorum (RS CVn), a prototype of active binary systems. Our data were obtained from 1998 to 2017 using different teles…
Magnetic topologies of two weak-line T Tauri stars TAP 4 and TAP 40
Yue Xiang, Shenghong Gu, J. -F. Donati +3
We present a Zeeman-Doppler imaging study of two weak-line T Tauri stars TAP 4 and TAP 40, based on the high-resolution spectropolarimetric observations with ESPaDOnS at the Canada…
Minute-cadence Observations of the LAMOST Fields with the TMTS: III. Statistic Study of the Flare Stars from the First Two Years
Qichun Liu, Jie Lin, Xiaofeng Wang +22
Tsinghua University-Ma Huateng Telescopes for Survey (TMTS) aims to detect fast-evolving transients in the Universe, which has led to the discovery of thousands of short-period var…
Investigation of stellar magnetic activity using variational autoencoder based on low-resolution spectroscopic survey
Yue Xiang, Shenghong Gu, Dongtao Cao
We apply the variational autoencoder (VAE) to the LAMOST-K2 low-resolution spectra to detect the magnetic activity of the stars in the K2 field. After the training on the spectra o…
An investigation of the magnetic activity of HD 134319 based on TESS photometry and ground-based spectroscopy
Fukun Xu, Shenghong Gu, Panogiotis Ioannidis
We present analysis of the starspot properties and chromospheric activity on HD 134319 using high precision photometry by TESS in sectors 14-16 (T1), 21-23 (T2) and high-resolution…