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molecules:ism:hc11n [2019/02/25 22:38] – external edit 127.0.0.1 | molecules:ism:hc11n [2021/04/12 18:34] (current) – mueller | ||
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R. A. Loomis, C. N. Shingledecker, | R. A. Loomis, C. N. Shingledecker, | ||
emphasized the\\ | emphasized the\\ | ||
- | **[[http://dx.doi.org/ | + | **[[https:// |
//Mon. Not. R. Astron.// **463**, 4175–4183 (2016).\\ | //Mon. Not. R. Astron.// **463**, 4175–4183 (2016).\\ | ||
Using the 100 m GBT, the authors have covered six rotational transitions with //J"// from 37 to 42. No single line was above 2 σ, and the stacked recordings yield an unsignificant result at the 2 σ level. Using the data from Bell at al., 1997 (see next paragraph), they should have observed most lines at about the 3 σ level, and even more clearly in the stacked observations. They conclude from the latter a 3 σ upper limit of about 10< | Using the 100 m GBT, the authors have covered six rotational transitions with //J"// from 37 to 42. No single line was above 2 σ, and the stacked recordings yield an unsignificant result at the 2 σ level. Using the data from Bell at al., 1997 (see next paragraph), they should have observed most lines at about the 3 σ level, and even more clearly in the stacked observations. They conclude from the latter a 3 σ upper limit of about 10< | ||
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M. B. Bell, P. A. Feldman, M. J. Travers, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus\\ | M. B. Bell, P. A. Feldman, M. J. Travers, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus\\ | ||
reported on the\\ | reported on the\\ | ||
- | **[[http://dx.doi.org/ | + | **[[https:// |
// | // | ||
Two transitions, | Two transitions, | ||
An earlier report was in error. The erroneous assignments were based on an extrapolation of the rotational constant //B// by\\ | An earlier report was in error. The erroneous assignments were based on an extrapolation of the rotational constant //B// by\\ | ||
T. Oka,\\ | T. Oka,\\ | ||
- | **[[http://dx.doi.org/ | + | **[[https:// |
//J. Mol. Spectrosc.// | //J. Mol. Spectrosc.// | ||
which in the end turned out to be in full agreement with the laboratory data and thus to be much better than implied by the earlier purported astronomical identification. | which in the end turned out to be in full agreement with the laboratory data and thus to be much better than implied by the earlier purported astronomical identification. | ||
+ | R. A. Loomis, A. M. Burkhardt, C. N. Shingledecker, | ||
+ | reported on the\\ | ||
+ | **[[https:// | ||
+ | //Nat. Astron.// **5**, 188 (2021).\\ | ||
+ | The observations were obtained in the course of the line survey Green Bank Telescope Observations of TMC-1: Hunting for Aromatic Molecules. The data were recorded with very high resolution which resolves, at least in part, the complex velocity structure and the < | ||
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