SIMBAD references

2007A&A...464L..33B - Astronomy and Astrophysics, volume 464, L33-36 (2007/3-4)

Laboratory detection of the negative molecular ion CCH.

BRUENKEN S., GOTTLIEB C.A., GUPTA H., McCARTHY M.C. and THADDEUS P.

Abstract (from CDS):

This paper reports the laboratory detection of the rotational spectrum of the acetylide anion, CCH. Five successive rotational transitions have been measured to high accuracy in a dc discharge with a free space millimeter-wave spectrometer in the frequency range 83-417GHz. Precise spectroscopic constants have been obtained for CCH and transition rest frequencies can now be calculated to better than 1km/s in equivalent radial velocity far into the terahertz region, allowing for deep astronomical searches for this anion in space. The highly stable and fairly polar CCH anion is a likely candidate for radio astronomical detection, its neutral analogue CCH being among one of the most abundant molecules in a wide variety of astrophysical sources.

Abstract Copyright:

Journal keyword(s): line: identification - molecular data - astrochemistry - methods: laboratory - ISM: molecules - radio lines: ISM

Simbad objects: 9

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2019.12.07-22:19:53

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