HINSPHERES: Spherically Symmetric Radiative Transfer Modeling of HINSA and the Radial HI-to-H${}_2$ Transition in Molecular Clouds

Yuchen Xing, Di Li, Xin Lyu +10

The transition from atomic hydrogen (HI) to molecular hydrogen (H${}_2$) is the first step in the evolution from diffuse interstellar gas to dense star-forming cores. HI narrow self-…