The polar contribution to the heat flow of Io

Polar brightness temperatures on Io are higher than expected for any passive surface heated by absorbed sunlight. This discrepancy implies large scale volcanic activity from which we derive a new component of Io's heat flow. We present a ‘Three Component’ thermal background, infrared emission m...

Full description

Saved in:
Bibliographic Details
Published inIcarus (New York, N.Y. 1962) Vol. 169; no. 1; pp. 264 - 270
Main Authors Veeder, Glenn J., Matson, Dennis L., Johnson, Torrence V., Davies, Ashley G., Blaney, Diana L.
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.05.2004
Subjects
Infrared
Thermal
Volcanism
Infrared
Volcanism
Io
Thermal
Online AccessGet full text

Cover

More Information
Summary:Polar brightness temperatures on Io are higher than expected for any passive surface heated by absorbed sunlight. This discrepancy implies large scale volcanic activity from which we derive a new component of Io's heat flow. We present a ‘Three Component’ thermal background, infrared emission model for Io that includes active polar regions. The widespread polar activity contributes an additional ∼0.6 W m −2 to Io's heat flow budget above the ∼2.5 W m −2 from thermal anomalies. Our estimate for Io's global average heat flow increases to ∼3±1 W m −2 and ∼1.3±0.4×10 14 watts total.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0019-1035
1090-2643
DOI:10.1016/j.icarus.2003.11.016