A search for pre-biotic molecules (Wirstrom+, 2007)

Details A search for pre-biotic molecules (Wirstrom+, 2007) A search for pre-biotic molecules (Wirstrom+, 2007)

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ycat..34730177w&link_type=abstract

VizieR On-line Data Catalog: J/A+A/473/177. Originally published in: 2007A&A...473..177W

Physics

Interstellar Medium, Radio Lines, Molecular Clouds

Scientific paper

Low-noise, 0.8MHz resolution spectra around 90GHz towards four hot core sources: Orion KL, W51 e1/e2, S140, and W3(OH), are presented. The observations were performed using the 3mm SIS receiver at the Onsala 20m telescope. The observations were made in the beam-switching mode, the spectrum intensity is given in TA* and high-order polynomial baselines have been subtracted. At 90GHz the Onsala 20m telescope has a beam FWHM of ~42arcsec and a main-beam efficiency of ~0.6. Due to changes in frequency setting during the observing period the frequency ranges are not identical for each source, but in all cases the ranges include the transitions used to determine the upper column densities of amino acetonitrile (H2NCH2CN), vinyl acetylene (C2H3CCH), oxiranecarbonitrile (c-C3H3NO), and amino-ethanol (NH2CH2CH2OH), presented in the paper. Note that the absorptions, seen in the S140 and the W3(OH) spectra around the strong HCN-line at 90.663GHz, are artificial.
(2 data files).

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