Millimetre observations of the S-type AGB star $\ddot{I}‡$ Cygni: variability of the emission of the inner envelope

D. T. Hoai, J. M. Winters, P. T. Nhung +2

New observations are presented of millimetre line emissions of the circumstellar envelope (CSE) of AGB star $\ddot{I}‡$ Cygni using the recently upgraded NOEMA array. $\ddot{I}‡$ Cygni is an S-t…