Gaia DR2-based catalogue of 237 Ap stars

Knowing the distribution of strongly magnetic Ap stars in the Hertzsprung-Russell diagram (HRD) allows us to study the evolution of their magnetic fields across the main...了解强磁场Ap星（strongly magnetic Ap stars）在赫茨普龙-罗素图（Hertzsprung-Russell diagram，HRD）中的分布情况，可助力我们探究其磁场在主星序（main sequence）中的演化规律。