The H_1n+3 + H2 isotopic system
origin of deuterium astrochemistry
dc.contributor.author | Hugo, Edouard | |
dc.date.accessioned | 2010-10-12T19:28:09Z | |
dc.date.available | 2010-10-12T19:28:09Z | |
dc.date.issued | 2008 | |
dc.identifier.uri | http://hdl.handle.net/11858/00-1735-0000-0001-3191-9 | |
dc.description.abstract | Dense cold molecular clouds reckoned to be stellar nurseries are the scene of an extreme molecular deuteration. Despite the cosmic D/H ratio of 10^{-5}, molecular species in prestellar cores are observed to contain nearly as much deuterium as hydrogen. This astonishing deuterium enrichment promoted by low temperatures is the work of H3+. It is the key species which unlocks the deuterium from its HD reservoir via reactions like H3+ + HD -> H2D+ + H_2 and drags it further to other species in successive reactions. For this reason, the H3+ + H2 isotopic system is outstandingly critical for the astrochemistry of cold environments. However, its understanding is yet incomplete and insufficient. This thesis thus focuses on the H3+ + H2 isotopic system from a theoretical, experimental and astronomical point of view giving a particular look into the role of nuclear spins... | |
dc.format.extent | 202 S. | |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | |
dc.publisher | Univ. Köln | |
dc.rights.uri | http://e-docs.geo-leo.de/rights | |
dc.subject.ddc | 523 | |
dc.subject.gok | TJM 000 | |
dc.title | The H_1n+3 + H2 isotopic system | |
dc.title.alternative | origin of deuterium astrochemistry | |
dc.type | monograph | |
dc.subject.gokverbal | Kosmochemie {Weltraumforschung} | |
dc.identifier.doi | 10.23689/fidgeo-263 | |
dc.identifier.ppn | 59607624X | |
dc.identifier.urn | urn:nbn:de:hbz:38-26469 | |
dc.type.version | publishedVersion | |
dc.relation.collection | Astronomie, Astrophysik, Weltraumforschung | |
dc.description.type | thesis |