A search for interstellar pyrimidine

Yi Jehng Kuan, Chi Hung Yan, Steven B. Charnley, Zbigniew Kisiel, Pascale Ehrenfreund, Hui Chun Huang

研究成果: 雜誌貢獻文章

53 引文 斯高帕斯(Scopus)


We have searched three hot molecular cores for submillimetre emission from the nucleic acid building block pyrimidine. We obtain upper limits to the total pyrimidine (beam-averaged) column densities towards Sgr B2(N), Orion KL and W51 el/e2 of 1.7 × 1014, 2.4 × 1014 and 3.4 × 1014 cm-2, respectively. The associated upper limits to the pyrimidine fractional abundances lie in the range (0.3-3) × 10-10. Implications of this result for interstellar organic chemistry, and for the prospects of detecting nitrogen heterocycles in general, are discussed briefly.

頁(從 - 到)650-656
期刊Monthly Notices of the Royal Astronomical Society
出版狀態已發佈 - 2003 十月 21

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Kuan, Y. J., Yan, C. H., Charnley, S. B., Kisiel, Z., Ehrenfreund, P., & Huang, H. C. (2003). A search for interstellar pyrimidine. Monthly Notices of the Royal Astronomical Society, 345(2), 650-656. https://doi.org/10.1046/j.1365-8711.2003.06975.x