7 citations · 12 across the 5 of their papers we have counts for
5 papers
Stellar Chromospheric Activity Database of Solar-like Stars Based on the LAMOST Low-Resolution Spectroscopic Survey III. Calibrating the Chromospheric Basal Flux and the Connection to Stellar Rotation
Weitao Zhang, Han He, Jun Zhang
Based on the Ca\,II H and K lines observed by LAMOST, we employ the photospheric () and basal () flux calibrated chromospheric activity indices to exam…
Variability of H chromospheric activity of solar-like stars revealed by the time-domain data of LAMOST Medium-Resolution Spectroscopic Survey
Han He, Ali Luo, Haotong Zhang +1
The variability of H chromospheric activity of solar-like stars is investigated by using the time-domain data of LAMOST Medium-Resolution Spectroscopic Survey (MRS). We use $R_\…
The soft X-ray transient EP241021a: A cosmic explosion with a complex off-axis jet and cocoon from a massive progenitor
Giulia Gianfagna, Luigi Piro, Gabriele Bruni +22
X-ray flashes (XRFs) are fast X-ray transients thought to be softer analogs of gamma-ray bursts (GRBs). With its soft X-ray sensitivity, the Einstein Probe (EP) provides a unique o…
Stellar Chromospheric Activity Database of Solar-like Stars Based on the LAMOST Low-Resolution Spectroscopic Survey: II. the bolometric and photospheric calibration
Weitao Zhang, Jun Zhang, Han He +2
The dependence of stellar magnetic activity on stellar parameters would be inspired by the chromospheric activity studies based on the large-scale spectroscopic surveys. The Ca II…
Near-Infrared Ca II Triplet As An Stellar Activity Indicator: Library and Comparative Study
Xin Huang, Yu-JI He, ZhongRui Bai +11
We have established and released a new stellar index library of the Ca II Triplet, which serves as an indicator for characterizing the chromospheric activity of stars. The library…