New molecules in IRC+10216: confirmation of C${}_5$S and tentative identification of MgCCH, NCCP, and SiH${}_3$CN

Marcelino Agúndez, José Cernicharo, Michel Guélin

The C-star envelope IRC+10216 harbors a rich variety of molecules, with more than 80 detected to date. During the course of a $\lambda$ 3 mm survey of IRC+10216 carried out with the IRAM…