Detection of extragalactic CF+ toward PKS1830-211 -- Chemical differentiation in the absorbing gas

S. Muller, K. Kawaguchi, J. H. Black +1

We report the first extragalactic detection of CF+, the fluoromethylidynium ion, in the z=0.89 absorber toward PKS1830-211. We estimate an abundance of ~3E-10 relative to H2 and th…