On the relation between magnetic field strength and gas density in the interstellar medium. II. Density uncertainties and diffuse gas constraints
This study investigates how magnetic field strength relates to gas density in the interstellar medium using Zeeman measurements and pulsar data. The researchers generalized this relationship into a two-part power law with different slopes for dense and diffuse gas, incorporating uncertainty modeling. Results constrain the exponents ($\alpha_1=0.20$, $\alpha_2=0.65$) and transition density ($n_0=3330 \text{ cm}^{-3}$), providing stronger constraints on the diffuse gas component.