Infrared emission from unusual binary stars.

Infrared emission between 2 and 22 microns has been photometrically observed for nine binary stars, E Aur, Aur, W Cep, Z And, UV Aur, v Sgr, HD 30353 (KS Per), Gem, and RZ Cnc. A model is developed for E Aur. There are indications of free-free emission in some objects without H emission lines, confirming a suggestion by Dyck and Milkey. The continuum in V Sgr is interpreted as due to a shell of graphite. A peak resembling that in carbon stars occurs near 11 . Limited systematics of this peak suggest that it correlates with high nitrogen abundance, and is probably due to Si3N4. Subject headings: binaries - circumstellar shells - infrared sources