Circumstellar chemistry is expected to depend upon C/O ratio
{"Image DocumentName": "Circumstellar chemistry is expected to depend upon C/O ratio", "Image ImageDescription": "Oxygen-rich stars: expect CO and H2O. Carbon-rich stars: expect CO, C2H2, HCN. To ZEROTH order, this is the observed behavior, but IRC has much higher than expected H2O, OH, H2CO, C3O, and SiO abundances. Indeed, water is widely observed in C-rich stars.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}