Infrared polar brightenings on Jupiter. IV - Spatial properties of methane emission

Details Infrared polar brightenings on Jupiter. IV - Spatial properties of methane emission Infrared polar brightenings on Jupiter. IV - Spatial properties of methane emission

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...74..331c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 74, May 1988, p. 331-339.

Astronomy and Astrophysics

Astronomy

41

Brightness Distribution, Emission Spectra, Infrared Astronomy, Jupiter Red Spot, Methane, Planetary Magnetospheres, Acetylene, H I Regions, Infrared Telescopes, Iue, Jupiter, Infrared, Wavelengths, Brightness, Methane, Emissions, Polar Regions, Earth-Based Observations, Position (Location), Longitude, Spacecraft Observations, Voyager 1 Mission, Iris Instrument, Latitude, Imagery, Comparisons, Diagrams, Telescope Methods, Procedure, Thermal Properties, Temperature, Satellites, Io, Hypotheses

Scientific paper

Polar "hot spots" observed on Jupiter at 7.8 μm with the NASA Infrared Telescope Facility at Mauna Kea, Hawaii, reveal different characteristics in the northern and southern hemispheres. The hot spot in the norhtern hemisphere is found to be fixed with respect to system III coordiantes at 180±10° long and 60±10° lat. In contrast, the south polar hot spot is not fixed with respect to system III longitude; neither is it fixed with respect to the subsolar point or to Io's position. Additional analysis of the north polar hot spot, also with the help of Voyager I IRIS data, reveals that it is more extended in longitude than in latitude.

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