Abstract
We have conducted extensive astronomical searches for the N-bearing ring molecules pyridine, quinoline and isoquinoline towards the circumstellar envelopes of carbon-rich stars, and for interstellar pyrimidine in hot molecular cores. Here we report the derived upper limits on the column densities of these molecules, and summarize the current status of these observations.
Original language | English |
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Pages (from-to) | 137-145 |
Number of pages | 9 |
Journal | Advances in Space Research |
Volume | 36 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2005 Jan 1 |
Keywords
- Astrobiology
- Astrochemistry
- ISM: chemistry
- ISM: molecules
- Stars: AGB and post-AGB
ASJC Scopus subject areas
- Aerospace Engineering
- Astronomy and Astrophysics
- Geophysics
- Atmospheric Science
- Space and Planetary Science
- Earth and Planetary Sciences(all)