2012ApJ...756...38J

We present the results of dust scattering simulations carried out for the Orion-Eridanus Superbubble region by comparing them with observations made in the far-ultraviolet. The albedo and the phase function asymmetry factor (g-factor) of interstellar grains were estimated, as were the distance and thickness of the dust layers. The results are as follows: 0.43^+0.02 _- 0.04_ for the albedo and 0.45^+0.2_- 0.2_for the g-factor, in good agreement with previous determinations and theoretical predictions. The distance of the assumed single dust layer, modeled for the Orion Molecular Cloud Complex, was estimated to be ∼110 pc and the thickness ranged from ∼130 at the core to ∼50 pc at the boundary for the region of present interest, implying that the dust cloud is located in front of the superbubble. The simulation result also indicates that a thin (∼10 pc) dust shell surrounds the inner X-ray cavities of hot gas at a distance of ∼70-90 pc.