Io's thermal emission from the Galileo photopolarimeter-radiometer

John R. Spencer, Julie A. Rathbun, Larry D. Travis, Leslie K. Tamppari, Laura Barnard, Terry Z. Martin, Alfred S. McEwen

Research output: Contribution to journalArticle

89 Scopus citations

Abstract

Galileo's photopolarimeter-radiometer instrument mapped Io's thermal emission during the 124, 125, and 127 flybys with a spatial resolution of 2.2 to 300 kilometers. Mapping of Loki in 124 shows uniform temperatures for most of Loki Patera and high temperatures in the southwest corner, probably resulting from an eruption that began 1 month before the observation. Most of Loki Patera was resurfaced before 127. Pele's caldera floor has a low temperature of 160 kelvin, whereas flows at Pillan and Zamama have temperatures of up to 200 kelvin. Global maps of nighttime temperatures provide a means for estimating global heat flow.

Original languageEnglish (US)
Pages (from-to)1198-1201
Number of pages4
JournalScience
Volume288
Issue number5469
DOIs
StatePublished - May 19 2000

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Io's thermal emission from the Galileo photopolarimeter-radiometer'. Together they form a unique fingerprint.

  • Cite this

    Spencer, J. R., Rathbun, J. A., Travis, L. D., Tamppari, L. K., Barnard, L., Martin, T. Z., & McEwen, A. S. (2000). Io's thermal emission from the Galileo photopolarimeter-radiometer. Science, 288(5469), 1198-1201. https://doi.org/10.1126/science.288.5469.1198