Mathematics – Logic
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..251..277c&link_type=abstract
Organic Matter in Space, Proceedings of the International Astronomical Union, IAU Symposium, Volume 251, p. 277-284
Mathematics
Logic
1
Comets, Asteroids, Solar System, Molecular Data, Ism: Dust
Scientific paper
We have initiated an extensive program of molecular analysis of extraterrestrial organic matter isolated from a broad range of meteorites (spanning multiple classes, groups, and petrologic types), including recent molecular spectroscopic analyses of the organic matter in the Comet 81P/Wild 2 samples. The results of these analyses clearly reveal the signature of multiple reaction pathways that transformed extraterrestrial organic matter away from its primitive roots. The most significant molecular transformation occurred in the post-accretionary phase of the parent body. However, each of the various chemical transformation trajectories point unambiguously back to a common primitive origin. Applying a wide range of spectroscopic techniques we find that the primitive organic precursor is striking in its chemical complexity exhibiting a broad array of oxygen- and nitrogen-bearing functional groups. The π-bonded carbon exists as predominately highly substituted single ring aromatics, there exists no evidence for abundant, large, polycyclic aromatic hydrocarbons (PAHs). We find that the molecular structure of primitive extraterrestrial organics is consistent with synthesis from small reactive molecules, e. g. formaldehyde, whose random condensation and subsequent rearrangement chemistry at low temperatures leads to a highly cross-linked macromolecule.
Cody George D.
David Kilcoyne A. L.
O'D. Alexander Conel M.
Yabuta Hikaru
No associations
LandOfFree
Unraveling the chemical history of the Solar System as recorded in extraterrestrial organic matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Unraveling the chemical history of the Solar System as recorded in extraterrestrial organic matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unraveling the chemical history of the Solar System as recorded in extraterrestrial organic matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-849517