Evidence For Atomic Oxygen In Molecular Clouds
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Evidence For Atomic Oxygen In Molecular Clouds
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Author : Albrecht Poglitsch
language : en
Publisher:
Release Date : 1995
Evidence For Atomic Oxygen In Molecular Clouds written by Albrecht Poglitsch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Evidence For Atomic Oxygen In Molecular Clouds
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Author :
language : de
Publisher:
Release Date : 1995
Evidence For Atomic Oxygen In Molecular Clouds written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Neutral Helium Atomic Oxygen And Molecular Nitrogen Densities From The Explorer 32 Mass Spectrometers
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Author :
language : en
Publisher:
Release Date : 1971
Neutral Helium Atomic Oxygen And Molecular Nitrogen Densities From The Explorer 32 Mass Spectrometers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Atmospheric chemistry categories.
The Reactions Of Active Nitrogen With Molecular Oxygen Atomic Oxygen And Hydrogen
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Author : Constantine Mavroyannis
language : en
Publisher:
Release Date : 1961
The Reactions Of Active Nitrogen With Molecular Oxygen Atomic Oxygen And Hydrogen written by Constantine Mavroyannis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
"For the reaction of nitrogen atoms with molecular oxygen, the nitrogen and oxygen atom concentrations were estimated, at different temperatures and pressures, by addition of excess N0 and measurement of N2O and NO produced. The rate constant was given by 2.3 x 10^12 exp(-5,900/RT) cc mole^-1 sec^-1. The maximum production of oxygen atoms was found to correspond to the maximum amount of HCN produced in the active nitrogen-ethylene reaction. A rate constant of 1.83(+- 0.2) x 10^15 cc^2 mole^-2 sec^-1 was determined for the reaction of nitrogen atoms with oxygen atoms, in the absence of molecular oxygen, at pressures of 3, 3.5 and 4 mm, in an unheated reaction tube. The nitrogen atom consumption was estimated by titrating active nitrogen with NO at different positions along the reaction tube. Using the same titration method, the rate constant for the decay of nitrogen atoms, in an unheated vessel, was found to have the value of 5.2 x 10^15 cc^2 mole^-2 sec^-1, with y= 7.5 (-+ 0.6) x 10^-5, in the pressure range from 0.5 to 4 mm. Under similar conditions, and by similar methods, a value of 4.87(+- 0.8) x 10^14 cc^2 mole^-2 sec^-l was obtained for the rate constant of the reaction between nitrogen atoms and hydrogen atoms, over the pressure range from 2.5 mm to 4.5 mm." --
Origin And Evolution Of The Elements Volume 4 Carnegie Observatories Astrophysics Series
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Author : Andrew McWilliam
language : en
Publisher: Cambridge University Press
Release Date : 2004-09-23
Origin And Evolution Of The Elements Volume 4 Carnegie Observatories Astrophysics Series written by Andrew McWilliam and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-09-23 with Science categories.
This Carnegie volume discusses the origin and evolution of elements in our galaxy and others.
Matrix Isolation Studies Of Reactions Of Atomic Oxygen
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Author : Patrick Ray Jones
language : en
Publisher:
Release Date : 1971
Matrix Isolation Studies Of Reactions Of Atomic Oxygen written by Patrick Ray Jones and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Oxygen categories.
Origin And Evolution Of Planetary And Satellite Atmospheres
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Author : S. K. Atreya
language : en
Publisher: University of Arizona Press
Release Date : 1989
Origin And Evolution Of Planetary And Satellite Atmospheres written by S. K. Atreya and has been published by University of Arizona Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Science categories.
An integrated discussion of the similarities and differences between the atmospheres of various bodies of the solar system, including the Earth.
Oxygen In The Solar System
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Author : Glenn J. MacPherson
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2018-12-17
Oxygen In The Solar System written by Glenn J. MacPherson and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-17 with Science categories.
Volume 68 of Reviews in Mineralogy and Geochemistry reviews Oxygen in the Solar System, an element that is so critically important in so many ways to planetary science. The book is based on three open workshops: Oxygen in the Terrestrial Planets, held in Santa Fe, NM July 20-23, 2004; Oxygen in Asteroids and Meteorites, held in Flagstaff, AZ June 2-3, 2005; and Oxygen in Earliest Solar System Materials and Processes (and including the outer planets and comets), held in Gatlinburg, TN September 19-22, 2005. As a consequence of the cross-cutting approach, the final book spans a wide range of fields relating to oxygen, from the stellar nucleosynthesis of oxygen, to its occurrence in the interstellar medium, to the oxidation and isotopic record preserved in 4.56 Ga grains formed at the Solar System's birth, to its abundance and speciation in planets large and small, to its role in the petrologic and physical evolution of the terrestrial planets. Contents: Introduction Oxygen isotopes in the early Solar System - A historical perspective Abundance, notation, and fractionation of light stable isotopes Nucleosynthesis and chemical evolution of oxygen Oxygen in the interstellar medium Oxygen in the Sun Redox conditions in the solar nebula: observational, experimental, and theoretical constraints Oxygen isotopes of chondritic components Mass-independent oxygen isotope variation in the solar nebula Oxygen and other volatiles in the giant planets and their satellites Oxygen in comets and interplanetary dust particles Oxygen and asteroids Oxygen isotopes in asteroidal materials Oxygen isotopic composition and chemical correlations in meteorites and the terrestrial planets Record of low-temperature alteration in asteroids The oxygen cycle of the terrestrial planets: insights into the processing and history of oxygen in surface environments Redox conditions on small bodies, the Moon and Mars Terrestrial oxygen isotope variations and their implications for planetary lithospheres Basalts as probes of planetary interior redox state Rheological consequences of redox state
Astrochemistry Of Cosmic Phenomena
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Author : P.D. Singh
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Astrochemistry Of Cosmic Phenomena written by P.D. Singh and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The IAU symposium No. 150 "Astrochemistry of Cosmic Phenomena" was held at the beautiful and scenic town of Campos do Jordao, Sao Paulo, Brazil from August 5 to 9, 1991, and was attended by 111 registered participants with 17 accompanied guests from 19 countries. The symposium had a wide ranging discussion of the chemistry of astronomical environments with an emphasis on the description of molecular processes that critically influence the nature and evolution of astronomical objects and the identification of specific observations that directly address significant astronomical questions. The subject areas of the symposium included atomic and molecular processes at low and high temperatures and photon interactions, the chemical structure of molecular clouds in the Milky Way and in external galaxies, the chemistry of outflows and their interactions with the interstellar medium, the chemical connections between the interstellar medium and the solar system and pregalactic chemistry. The scientific programme comprised of review talks and con tributed papers, with a general introduction by Professor A. Dalgarno and a final overview of the whole symposium by Professor D. A. Williams. Financial supports from the Sao Paulo State Foundation Support (FAPESP), Brazilian National Research Council(CNPq), Finance Company of Studies and Projects (FINEP), Institute of Astronomy and Geophysics of University of Sao Paulo (IAG-USP) and Inter national Astronomical Union (IAU) are greatfully acknowledged. I am greatly indebted to Professor A.
Neutral Helium Atomic Oxygen And Molecular Nitrogen Densities From The Explorer 32 Mass Spectrometers
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Author :
language : en
Publisher:
Release Date : 1971
Neutral Helium Atomic Oxygen And Molecular Nitrogen Densities From The Explorer 32 Mass Spectrometers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Atmosphere, Upper categories.