CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT
Carbon dioxide (CO{sub 2}) has been detected on the surface of several icy moons of Jupiter and Saturn via observation of the ν{sub 3} band with the Near-Infrared Mapping Spectrometer on board the Galileo spacecraft and the Visible-Infrared Mapping Spectrometer on board the Cassini spacecraft. Inter...
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ftopenaccessrep:oai:zenodo.org:99511 2023-10-25T01:37:35+02:00 CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT Brant M. Jones Ralf I. Kaiser Giovanni Strazzulla 2014-06-05 https://www.openaccessrepository.it/record/99511 https://doi.org/10.1088/0004-637x/788/2/170 und unknown url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/99511 doi:10.1088/0004-637x/788/2/170 info:eu-repo/semantics/openAccess Space and Planetary Science Astronomy and Astrophysics info:eu-repo/semantics/article publication-article 2014 ftopenaccessrep https://doi.org/10.1088/0004-637x/788/2/170 2023-09-26T22:19:36Z Carbon dioxide (CO{sub 2}) has been detected on the surface of several icy moons of Jupiter and Saturn via observation of the ν{sub 3} band with the Near-Infrared Mapping Spectrometer on board the Galileo spacecraft and the Visible-Infrared Mapping Spectrometer on board the Cassini spacecraft. Interestingly, the CO{sub 2} band for several of these moons exhibits a blueshift along with a broader profile than that seen in laboratory studies and other astrophysical environments. As such, numerous attempts have been made in order to clarify this abnormal behavior; however, it currently lacks an acceptable physical or chemical explanation. We present a rather surprising result pertaining to the synthesis of carbon dioxide in a polar environment. Here, carbonic acid was synthesized in a water (H{sub 2}O)-carbon dioxide (CO{sub 2}) (1:5) ice mixture exposed to ionizing radiation in the form of 5 keV electrons. The irradiated ice mixture was then annealed, producing pure carbonic acid which was then subsequently irradiated, recycling water and carbon dioxide. However, the observed carbon dioxide ν{sub 3} band matches almost exactly with that observed on Callisto; subsequent temperature program desorption studies reveal that carbon dioxide synthesized under these conditions remains in solid form until 160 K, i.e., themore » sublimation temperature of water. Consequently, our results suggest that carbon dioxide on Callisto as well as other icy moons is indeed complexed with water rationalizing the shift in peak frequency, broad profile, and the solid state existence on these relatively warm moons.« less Article in Journal/Newspaper Carbonic acid Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) The Astrophysical Journal 788 2 170 |
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Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
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ftopenaccessrep |
language |
unknown |
topic |
Space and Planetary Science Astronomy and Astrophysics |
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Space and Planetary Science Astronomy and Astrophysics Brant M. Jones Ralf I. Kaiser Giovanni Strazzulla CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT |
topic_facet |
Space and Planetary Science Astronomy and Astrophysics |
description |
Carbon dioxide (CO{sub 2}) has been detected on the surface of several icy moons of Jupiter and Saturn via observation of the ν{sub 3} band with the Near-Infrared Mapping Spectrometer on board the Galileo spacecraft and the Visible-Infrared Mapping Spectrometer on board the Cassini spacecraft. Interestingly, the CO{sub 2} band for several of these moons exhibits a blueshift along with a broader profile than that seen in laboratory studies and other astrophysical environments. As such, numerous attempts have been made in order to clarify this abnormal behavior; however, it currently lacks an acceptable physical or chemical explanation. We present a rather surprising result pertaining to the synthesis of carbon dioxide in a polar environment. Here, carbonic acid was synthesized in a water (H{sub 2}O)-carbon dioxide (CO{sub 2}) (1:5) ice mixture exposed to ionizing radiation in the form of 5 keV electrons. The irradiated ice mixture was then annealed, producing pure carbonic acid which was then subsequently irradiated, recycling water and carbon dioxide. However, the observed carbon dioxide ν{sub 3} band matches almost exactly with that observed on Callisto; subsequent temperature program desorption studies reveal that carbon dioxide synthesized under these conditions remains in solid form until 160 K, i.e., themore » sublimation temperature of water. Consequently, our results suggest that carbon dioxide on Callisto as well as other icy moons is indeed complexed with water rationalizing the shift in peak frequency, broad profile, and the solid state existence on these relatively warm moons.« less |
format |
Article in Journal/Newspaper |
author |
Brant M. Jones Ralf I. Kaiser Giovanni Strazzulla |
author_facet |
Brant M. Jones Ralf I. Kaiser Giovanni Strazzulla |
author_sort |
Brant M. Jones |
title |
CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT |
title_short |
CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT |
title_full |
CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT |
title_fullStr |
CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT |
title_full_unstemmed |
CARBONIC ACID AS A RESERVE OF CARBON DIOXIDE ON ICY MOONS: THE FORMATION OF CARBON DIOXIDE (CO2) IN A POLAR ENVIRONMENT |
title_sort |
carbonic acid as a reserve of carbon dioxide on icy moons: the formation of carbon dioxide (co2) in a polar environment |
publishDate |
2014 |
url |
https://www.openaccessrepository.it/record/99511 https://doi.org/10.1088/0004-637x/788/2/170 |
long_lat |
ENVELOPE(101.133,101.133,-66.117,-66.117) |
geographic |
Jupiter |
geographic_facet |
Jupiter |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/99511 doi:10.1088/0004-637x/788/2/170 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1088/0004-637x/788/2/170 |
container_title |
The Astrophysical Journal |
container_volume |
788 |
container_issue |
2 |
container_start_page |
170 |
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1780732558754971648 |