SIMBAD references

2016A&A...589L...5M - Astronomy and Astrophysics, volume 589, L5-5 (2016/5-1)

Detection of extragalactic CF+ toward PKS 1830-211. Chemical differentiation in the absorbing gas.

MULLER S., KAWAGUCHI K., BLACK J.H. and AMANO T.

Abstract (from CDS):

We report the first extragalactic detection of the fluoromethylidynium ion CF+ in the z=0.89 absorber toward PKS 1830-211. We estimate an abundance of ∼3x10–10 relative to H2 and that ∼1% of fluorine is captured in CF+. The absorption line profile of CF+ is found to be markedly different from that of other species observed within the same tuning, and is notably anticorrelated with CH3OH. On the other hand, the CF+ profile resembles that of [CI]. Our results are consistent with expected fluorine chemistry and point to chemical differentiation in the column of absorbing gas.

Abstract Copyright: © ESO, 2016

Journal keyword(s): quasars: absorption lines - quasars: individual: PKS1830-211 - galaxies: ISM - galaxies: abundances - ISM: molecules - radio lines: galaxies

Simbad objects: 7

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