Measuring $\eta$ Carinae's High Mass Ejecta in the Infrared and Sub-millimeter

Abstract

I address uncertainties on the spatial distribution and mass of the dust formed in $\eta$ Carinae's Homunculus nebula with data being combined from several space- and ground-based facilities spanning near-infrared to sub-mm wavelengths, in terms of observational constraints and modeling. Until these aspects are better understood, the mass loss history and mechanisms responsible for $\eta$ Car's enormous eruption(s) remain poorly constrained.

arXiv comment3 pages, 3 figures, to appear in proceedings of International Workshop on Wolf-Rayet Stars (editors W.-R. Hamann, A. Sander, and H. Todt, publisher Universitätsverlag Potsdam)