Chemical cartography reveals the Milky Way’s spiral arms
Top: Two dimensional density diagram of the X-Y spatial positions of the hot OBAF star sample in LAMOST. For reference, the solar position is denoted as an orange star. The approximate location of the spiral arms in the Galaxy from Reid et al. (2014) are shown as thick black lines and their extend is marked
Blythe Menjivar
July 21, 2023