Spatial and temporal variations of Jupiter's H 3  +  emission deduced from image analysis | Zendy

Satoh Takehiko | Zendy; Connerney J. E. P. | Zendy

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Spatial and temporal variations of Jupiter's H 3 + emission deduced from image analysis

Author(s) -

Satoh Takehiko,

Connerney J. E. P.

Publication year - 1999

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/1999gl900372

Subject(s) - jupiter (rocket family) , physics , emission spectrum , line of sight , line (geometry) , astrophysics , altitude (triangle) , spatial distribution , range (aeronautics) , atmosphere (unit) , astronomy , optics , spectral line , geology , remote sensing , meteorology , materials science , geometry , mathematics , space shuttle , composite material

Intensity distribution of H 3 + emission across Jupiter's disk has been analyzed using 3.4‐µm IRTF/ProtoCAM images acquired in 1992. The apparent disk emission is approximated using a mathematical function, of which parameters characterize (i) the dependence on the solar illumination angle, (ii) limb brightening consistent with the line‐of‐sight effect, and (iii) the latitudinal variation. A simple atmospheric model reproduces the disk emission (corrected for the line‐of‐sight effect) well, with H 3 + emission peak in an altitude range 700–750 km above P = 600 mb level.

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