A search for interstellar pyrimidine

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

doi:10.1046/j.1365-8711.2003.06975.x

A search for interstellar pyrimidine

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

Department of Earth Sciences

Research output: Contribution to journal › Article

51 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	650-656
Number of pages	7
Journal	Monthly Notices of the Royal Astronomical Society
Volume	345
Issue number	2
DOIs	https://doi.org/10.1046/j.1365-8711.2003.06975.x
Publication status	Published - 2003 Oct 21

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Keywords

Astrobiology
ISM: individual: Orion KL
ISM: individual: Sgr B2(N)
ISM: individual: W51 el/e2
ISM: molecules
Line: identification

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Cite this

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

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abstract = "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.",

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AU - Charnley, Steven B.

AU - Kisiel, Zbigniew

AU - Ehrenfreund, Pascale

AU - Huang, Hui Chun

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AB - 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.

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10.1046/j.1365-8711.2003.06975.x