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

53 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

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

Access to Document

10.1046/j.1365-8711.2003.06975.x

Fingerprint Dive into the research topics of 'A search for interstellar pyrimidine'. Together they form a unique fingerprint.

Cite this

@article{6d6bfdccb1634f1fb4bcbbb04c56eda5,

title = "A search for interstellar pyrimidine",

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.",

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

author = "Kuan, {Yi Jehng} and Yan, {Chi Hung} and Charnley, {Steven B.} and Zbigniew Kisiel and Pascale Ehrenfreund and Huang, {Hui Chun}",

year = "2003",

month = oct,

day = "21",

doi = "10.1046/j.1365-8711.2003.06975.x",

language = "English",

volume = "345",

pages = "650--656",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

TY - JOUR

T1 - A search for interstellar pyrimidine

AU - Kuan, Yi Jehng

AU - Yan, Chi Hung

AU - Charnley, Steven B.

AU - Kisiel, Zbigniew

AU - Ehrenfreund, Pascale

AU - Huang, Hui Chun

PY - 2003/10/21

Y1 - 2003/10/21

N2 - 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.

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.

KW - Astrobiology

KW - ISM: individual: Orion KL

KW - ISM: individual: Sgr B2(N)

KW - ISM: individual: W51 el/e2

KW - ISM: molecules

KW - Line: identification

UR - http://www.scopus.com/inward/record.url?scp=0142231413&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0142231413&partnerID=8YFLogxK

U2 - 10.1046/j.1365-8711.2003.06975.x

DO - 10.1046/j.1365-8711.2003.06975.x

M3 - Article

AN - SCOPUS:0142231413

VL - 345

SP - 650

EP - 656

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -