Ethylene line emission from the North Pole of Jupiter
A significant enhancement in infrared emission from hydrocarbon constituents of Jupiter's stratosphere was observed at a north polar hot spot (60 degrees latitude, 180 degrees longitude). A unique probe of this phenomena is ethylene (C2H4), which has not been observed previously from the ground...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19920003658 2023-05-15T17:39:42+02:00 Ethylene line emission from the North Pole of Jupiter Kostiuk, Theodor Romani, P. Espenak, F. Goldstein, J. Unclassified, Unlimited, Publicly available Oct 1, 1991 application/pdf http://hdl.handle.net/2060/19920003658 unknown Document ID: 19920003658 Accession ID: 92N12876 http://hdl.handle.net/2060/19920003658 No Copyright CASI LUNAR AND PLANETARY EXPLORATION NASA, Washington, Reports of Planetary Astronomy, 1991; p 168 1991 ftnasantrs 2015-03-15T05:01:14Z A significant enhancement in infrared emission from hydrocarbon constituents of Jupiter's stratosphere was observed at a north polar hot spot (60 degrees latitude, 180 degrees longitude). A unique probe of this phenomena is ethylene (C2H4), which has not been observed previously from the ground. The profile of the emission line from ethylene at 951.742 cm-1, measured near the north pole of Jupiter, was analyzed to determine the morphology of the enhancement, the increase in C2H4 abundance and local temperature, as well as possible information on the altitude (pressure regions) where the increased emission is formed. Measurements were made using infrared heterodyne spectroscopy at the NASA Infrared Telescope Facility on Mauna Kea, Hawaii in December 1989. At 181 degrees longitude a very strong emission line was seen, which corresponds to a 13-fold increase in C2H4 abundance or a 115K increase in temperature in the upper stratosphere, compared to values outside the hot spot. The hot spot was found to be localized to approx. 10 degrees in longitude; the line shape (width) implied that the enhanced emission originated very high in the stratosphere. Other/Unknown Material North Pole NASA Technical Reports Server (NTRS) Jupiter ENVELOPE(101.133,101.133,-66.117,-66.117) North Pole |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
LUNAR AND PLANETARY EXPLORATION |
spellingShingle |
LUNAR AND PLANETARY EXPLORATION Kostiuk, Theodor Romani, P. Espenak, F. Goldstein, J. Ethylene line emission from the North Pole of Jupiter |
topic_facet |
LUNAR AND PLANETARY EXPLORATION |
description |
A significant enhancement in infrared emission from hydrocarbon constituents of Jupiter's stratosphere was observed at a north polar hot spot (60 degrees latitude, 180 degrees longitude). A unique probe of this phenomena is ethylene (C2H4), which has not been observed previously from the ground. The profile of the emission line from ethylene at 951.742 cm-1, measured near the north pole of Jupiter, was analyzed to determine the morphology of the enhancement, the increase in C2H4 abundance and local temperature, as well as possible information on the altitude (pressure regions) where the increased emission is formed. Measurements were made using infrared heterodyne spectroscopy at the NASA Infrared Telescope Facility on Mauna Kea, Hawaii in December 1989. At 181 degrees longitude a very strong emission line was seen, which corresponds to a 13-fold increase in C2H4 abundance or a 115K increase in temperature in the upper stratosphere, compared to values outside the hot spot. The hot spot was found to be localized to approx. 10 degrees in longitude; the line shape (width) implied that the enhanced emission originated very high in the stratosphere. |
format |
Other/Unknown Material |
author |
Kostiuk, Theodor Romani, P. Espenak, F. Goldstein, J. |
author_facet |
Kostiuk, Theodor Romani, P. Espenak, F. Goldstein, J. |
author_sort |
Kostiuk, Theodor |
title |
Ethylene line emission from the North Pole of Jupiter |
title_short |
Ethylene line emission from the North Pole of Jupiter |
title_full |
Ethylene line emission from the North Pole of Jupiter |
title_fullStr |
Ethylene line emission from the North Pole of Jupiter |
title_full_unstemmed |
Ethylene line emission from the North Pole of Jupiter |
title_sort |
ethylene line emission from the north pole of jupiter |
publishDate |
1991 |
url |
http://hdl.handle.net/2060/19920003658 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(101.133,101.133,-66.117,-66.117) |
geographic |
Jupiter North Pole |
geographic_facet |
Jupiter North Pole |
genre |
North Pole |
genre_facet |
North Pole |
op_source |
CASI |
op_relation |
Document ID: 19920003658 Accession ID: 92N12876 http://hdl.handle.net/2060/19920003658 |
op_rights |
No Copyright |
_version_ |
1766140484271472640 |