activity
20142026
most citedDoppler images of the eclipsing binary ER Vulpeculae

14 citations · 55 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.SR2026

Starspot activity and surface differential rotation on UX Arietis

Yue Xiang, Shenghong Gu, A. Collier Cameron +2

We present new Doppler images of the K0 subgiant primary component of the RS CVn-type binary UX Arietis (UX Ari), derived from time-series spectra obtained in November--December of…

astro-ph.SR2025

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…

astro-ph.SR2024

Further study of starspot activity and measurement of differential rotation for SZ Piscium

Yue Xiang, Shenghong Gu, A. Collier Cameron +2

We present a series of 9 Doppler images of the magnetically active K component of the RS CVn-type binary SZ Psc, based on the high-resolution spectroscopic data collected from 2014…

astro-ph.EP2024★ 5 cited

A method of photometric data extraction for asteroids from time-domain surveys

Xiaoyun Xu, Xiaobing Wang, Karri Muinonen +9

The lightcurves of asteroids are essential for determining their physical characteristics, including shape, spin, size, and surface composition. However, most asteroids are missing…

astro-ph.SR2024

Stellar cycle and evolution of polar spots in an M+WD binary

Xinlin Zhao, Song Wang, Xue Li +4

Stellar activity cycles reveal continuous relaxation and induction of magnetic fields. The activity cycle is typically traced through the observation of cyclic variations in total…

astro-ph.SR2023

First Chromospheric Activity and Doppler Imaging Study of PW And Using a New Doppler Imaging Code: SpotDIPy

Engin Bahar, Hakan V. Şenavcı, Emre Işık +4

Measuring coverage of dark spots on cool stars is important in understanding how stellar magnetic activity scales with the rotation rate and convection zone depth. In this respect,…

astro-ph.SR2023★ 1 cited

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…

astro-ph.SR2022★ 7 cited

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…

astro-ph.SR2020★ 5 cited

Doppler imaging and differential rotation of Coronae Borealis using SONG

Yue Xiang, Shenghong Gu, A. Collier Cameron +6

We present new Doppler images of both components of the double-lined binary CrB, based on the high-resolution spectroscopic data collected during 11 nights in 2015 March--A…

astro-ph.SR2020★ 12 cited

The first Doppler imaging of the active binary prototype RS Canum Venaticorum

Yue Xiang, Shenghong Gu, U. Wolter +6

We present the first Doppler images of the prototypical active binary star RS CVn, derived from high-resolution spectra observed in 2004, 2016 and 2017, using three different teles…

astro-ph.SR2015★ 11 cited

The first Doppler images of the eclipsing binary SZ Piscium

Yue Xiang, Shenghong Gu, A. Collier Cameron +2

We present the first Doppler images of the active eclipsing binary system SZ Psc, based on the high-resolution spectral data sets obtained in 2004 November and 2006 September--Dece…

astro-ph.SR2014★ 14 cited

Doppler images of the eclipsing binary ER Vulpeculae

Yue Xiang, Shenghong Gu, A. Collier Cameron +1

We present Doppler images of both components of the eclipsing binary system ER Vul, based on the spectra obtained in 2004 November, 2006 September and 2008 November. The least-squa…