SIMBAD references

2002ApJ...567L.145M - Astrophys. J., 567, L145-L148 (2002/March-2)

A critical examination of the l-C3H2 spectrum and the diffuse interstellar bands.

McCALL B.J., OKA T., THORBURN J., HOBBS L.M. and YORK D.G.

Abstract (from CDS):

It has recently been suggested by J. P. Maier's group that the origin band and three vibronic bands of the linear propadienylidene anion l-C3H2 match the diffuse interstellar bands (DIBs). We have examined the wavelength ranges in question using data from our ongoing DIB survey at the Apache Point Observatory. We find that the strongest DIB (λ6993) is not an acceptable wavelength match to the origin band of l-C3H2, based on high-resolution laboratory data. The nondetection of interstellar features corresponding to the K=2⟵1 and K=0⟵1 branches of para l-C3H2 also argues against the assignment of λ6993 to the K=1⟵0 branch of ortho l-C3H2. Two of the three DIBs that have been attributed to vibronic bands do not correlate in intensity with λ6993, providing further evidence against the assignment of this set of DIBs to l-C3H2.

Abstract Copyright:

Journal keyword(s): ISM: Molecules - Line: Identification - Methods: Laboratory - Molecular Data

Status at CDS:  

Simbad objects: 14

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2020.04.09-10:52:06

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