@article{ed386d396e4248388667c3981630f082,
title = "Ground-based IR observation of oxygen isotope ratios in Venus's atmosphere",
abstract = "Abstract The oxygen isotope ratios 17O/16O and 18O/16O in Venus's atmosphere were measured simultaneously by ground-based IR spectroscopy. The CO2 absorption lines in the 2648 cm-1 (for 17O/18O) and 4582 cm-1 (for 18O/16O) regions were observed using the IRTF/CSHELL spectrometer. The deviations of the isotope fractions are found to be δ17O=+92±158‰ and δ18O=-42±85‰as compared to the terrestrial standard (HITRAN 2012) where the uncertainties include both random and systematic errors. Such combination agrees with the Earth-Moon fractionation line within the errors. This is consistent to the fact that the proto-Venus matter was also well mixed with the proto-Earth-Moon matter.",
keywords = "Ground-based, IR spectroscopy, Oxygen isotope, Venus atmosphere",
author = "N. Iwagami and Hashimoto, {G. L.} and S. Ohtsuki and S. Takagi and S. Robert",
note = "Funding Information: The authors would like to thank the staff at the IRTF for their support during the observations. The Infrared Telescope Facility is operated by the University of Hawaii under Co-operative agreement no. NCC 5-538 with the National Aeronautics and Space Administration, Science Mission Directorate, Planetary Aeronomy Program. The authors are also grateful to the Open CLASTER project for the use of the RSTAR (a system for the transfer of atmospheric radiation) package in this research. This research is partly supported by Grant-in-aid for scientific research (C) no. 21540460 from the Ministry of Education, Culture, Sports, Science and Technology , Japan. SR acknowledges funding from by the Belgian Federal Science Policy Office (Action 1-MO/35/030 ) and would like to thank the IUAP PlanetTOPERS and EuroVenus (GA 606798) projects for their support Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",
year = "2015",
month = aug,
day = "1",
doi = "10.1016/j.pss.2014.10.004",
language = "English",
volume = "113-114",
pages = "292--297",
journal = "Planetary and Space Science",
issn = "0032-0633",
publisher = "Elsevier Limited",
}