Icy Nitrogen Chemistry: Stardust, Comets, Meteorites, And Beyond

Details Icy Nitrogen Chemistry: Stardust, Comets, Meteorites, And Beyond Icy Nitrogen Chemistry: Stardust, Comets, Meteorites, And Beyond

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.1611h&link_type=abstract

American Astronomical Society, DPS meeting #40, #16.11; Bulletin of the American Astronomical Society, Vol. 40, p.413

Biology

Scientific paper

The nitrogen chemistry of comets, meteorites, and the interstellar medium (ISM) presents interesting contrasts in the relative abundances found for amino acids, nitriles (-CN group), and amines. Recent analysis of Stardust grains has added two amines and one amino acid (glycine) to the nitriles already known in comets through spectroscopy. Amino acids dominate amines in carbonaceous meteorites, with at least 100 acids identified. In the ISM, nitriles are one of the larger classes of molecules, with only one amine being identified and no independent verification of an amino acid. In our laboratories we are studying low-temperature reactions of ices containing these three types of nitrogen-carrying molecules. One result has been the development of a solid-phase reaction path to amino acids, which we offer as an alternative to the oft-invoked Strecker process. This new result will be reported in this presentation, with an emphasis on interconnections among the astrochemistry of nitriles, amines, and amino acids, and some as-yet-undetected cometary molecules. - This work has been supported by a grant to the Goddard Center for Astrobiology through the NASA Astrobiology Institute. Additional funding from NASA's Planetary Atmospheres program is acknowledged. Experiments were performed in the Cosmic Ice Laboratory (RLH, MHM) and the Astrobiology Analytical Laboratory (JPD) at the NASA Goddard Space Flight Center.

Affiliated with

Also associated with

No associations

Rating

Icy Nitrogen Chemistry: Stardust, Comets, Meteorites, And Beyond 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 Icy Nitrogen Chemistry: Stardust, Comets, Meteorites, And Beyond, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Icy Nitrogen Chemistry: Stardust, Comets, Meteorites, And Beyond will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1437011