EW and chemical abundances in 211 stars with HARPS

Magnetic fields and stellar spots can alter the equivalent widths of absorption lines in stellar spectra, varying during the activity cycle. This also influences the information...恒星磁场与恒星黑子（stellar spots）可改变恒星光谱中吸收线的等效宽度（equivalent widths），且该改变效应会随恒星活动周期发生变化；此类现象亦会对相关信息产生影响……