木星热层中的引力波。

Gravity Waves in Jupiter's Thermosphere.

作者信息

Young LA, Yelle RV, Young R, Seiff A, Kirk DB

机构信息

L. A. Young and R. V. Yelle, Center for Space Physics, Boston University, Boston, MA 02215, USA. R. Young, Space Science Division, NASA Ames Research Center, Moffett Field, CA 94035, USA. A. Seiff, Department of Meteorology, San Jose State University Foundation, CA 95192, USA. D. B. Kirk, University of Oregon, Eugene, OR 97403, USA.

出版信息

Science. 1997 Apr 4;276(5309):108-11. doi: 10.1126/science.276.5309.108.

DOI:10.1126/science.276.5309.108

PMID:9082979

Abstract

The Atmosphere Structure Instrument on the Galileo probe detected wavelike temperature fluctuations superimposed on a 700-kelvin temperature increase in Jupiter's thermosphere. These fluctuations are consistent with gravity waves that are viscously damped in the thermosphere. Moreover, heating by these waves can explain the temperature increase measured by the probe. This heating mechanism should be applicable to the thermospheres of the other giant planets and may help solve the long-standing question of the source of their high thermospheric temperatures.

摘要

伽利略探测器上的大气结构仪器在木星热层中检测到，在700开尔文的温度升高之上叠加着波状温度波动。这些波动与在热层中被粘性阻尼的重力波一致。此外，这些波产生的加热作用可以解释探测器测量到的温度升高。这种加热机制应该适用于其他气态巨行星的热层，并且可能有助于解决它们热层高温来源这一长期存在的问题。