15 citations · 21 across the 7 of their papers we have counts for
7 papers
Doppler-shifted Signatures in the Chromospheric Line Profiles of II Pegasi
Cao Dongtao, Gu shenghong
Stellar flares are frequently accompanied by prominence eruptions, coronal mass ejections (CMEs), and other forms of plasma motion. Based on the long-term high-resolution spectrosc…
Further Investigation on Chromospheric Activity Patterns of the RS Canum Venaticorum Star V711 Tauri
Cao Dongtao, Gu Shenghong
We present new long-term spectroscopic observations of the very active RS Canum Venaticorum (RS CVn) star V711 Tauri (V711 Tau), obtained during several observing runs from 2005 to…
Investigating Possible Stellar Coronal Mass Ejections in M-type Dwarfs Using the CARMENES DR1 Spectra
Cao Dongtao, Gu Shenghong
Stellar coronal mass ejections (CMEs) have significant impacts on surrounding exoplanets and stellar evolution. For M-type dwarf stars, hosting close-in habitable zones, frequent a…
Magnetic activity of ultracool dwarfs in the LAMOST DR11
Yue Xiang, Shenghong Gu, Dongtao Cao
Ultracool dwarfs consist of lowest-mass stars and brown dwarfs. Their interior is fully convective, different from that of the partly-convective Sun-like stars. Magnetic field gene…
Red Asymmetry of H Line Profiles during the flares on the active RS CVn-type star II Pegasi
Dongtao Cao, Shenghong Gu
Stellar coronal mass ejections (CMEs) have recently attracted much attention for their impacts on stellar evolution and surrounding exoplanets. RS CVn-type stars could produce larg…
Taxonomic analysis of asteroids with artificial neural networks
Nanping Luo, Xiaobin Wang, Shenghong Gu +3
We study the surface composition of asteroids with visible and/or infrared spectroscopy. For example, asteroid taxonomy is based on the spectral features or multiple color indices…
Chromospheric activity on the RS Canum Venaticorum stars
Zhang Liyun, Gu Shenghong
Firstly, we review the stellar chromospheric activity in the optical wavelength. Secondly, we introduce our ongoing project of multi-wavelength high--resolution optical observation…