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dc.contributor.authorRimmer, Paulen
dc.contributor.authorHelling, Cen
dc.date.accessioned2019-10-14T23:30:10Z
dc.date.available2019-10-14T23:30:10Z
dc.date.issued2016-05-01en
dc.identifier.issn0067-0049
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/297805
dc.description.abstract© 2016. The American Astronomical Society. All rights reserved.. There are many open questions about prebiotic chemistry in both planetary and exoplanetary environments. The increasing number of known exoplanets and other ultra-cool, substellar objects has propelled the desire to detect life and prebiotic chemistry outside the solar system. We present an ion-neutral chemical network constructed from scratch, Stand2015, that treats hydrogen, nitrogen, carbon, and oxygen chemistry accurately within a temperature range between 100 and 30,000 K. Formation pathways for glycine and other organic molecules are included. The network is complete up to H6C2N2O3. Stand2015 is successfully tested against atmospheric chemistry models for HD 209458b, Jupiter, and the present-day Earth using a simple one-dimensional photochemistry/diffusion code. Our results for the early Earth agree with those of Kasting for CO2, H2, CO, and O2, but do not agree for water and atomic oxygen. We use the network to simulate an experiment where varied chemical initial conditions are irradiated by UV light. The result from our simulation is that more glycine is produced when more ammonia and methane is present. Very little glycine is produced in the absence of any molecular nitrogen and oxygen. This suggests that the production of glycine is inhibited if a gas is too strongly reducing. Possible applications and limitations of the chemical kinetics network are also discussed.
dc.publisherIOP
dc.rightsAll rights reserved
dc.titleA CHEMICAL KINETICS NETWORK for LIGHTNING and LIFE in PLANETARY ATMOSPHERESen
dc.typeArticle
prism.issueIdentifier1en
prism.publicationDate2016en
prism.publicationNameAstrophysical Journal, Supplement Seriesen
prism.volume224en
dc.identifier.doi10.17863/CAM.44859
dcterms.dateAccepted2015-10-22en
rioxxterms.versionofrecord10.3847/0067-0049/224/1/9en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-05-01en
dc.contributor.orcidRimmer, Paul [0000-0002-7180-081X]
dc.identifier.eissn1538-4365
rioxxterms.typeJournal Article/Reviewen
cam.issuedOnline2016-05-23en
dc.identifier.urlhttps://iopscience.iop.org/article/10.3847/0067-0049/224/1/9en
rioxxterms.freetoread.startdate2017-05-01


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