Investigating l-C3H2 as a Carrier for Diffuse Interstellar Bands
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SubjectDIB; Astronomy; Astrophysics; Carthage College Physics Department; Diffuse Interstellar Bands; l-C3H2
Maier et al. has reported that the 4881 and 5450 ̊A diffuse interstellar band features may be associated with the compound C3H2 (l-C3H2) and the phase transition B1B1 ← X1A1. Here, we present evidence that l-C3H2 is in fact not affiliated with the 4881 ̊A band or the 5450 ̊A band, and also present evidence that the other phase transition associated l-C3H2 are not present in a large sample of high resolution data. Maier et al. did not identify the third phase transition in the original report because of telluric distortion; we have confirmed that this feature is also not present.
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