GLOBAL HIGH-RESOLUTION IMAGING OF HOTSPOTS ON IO

被引：20

作者：

MCLEOD, BA

MCCARTHY, DW

FREEMAN, JD

机构：

[1] Steward Observatory, The University of Arizona, Tucson

来源：

ASTRONOMICAL JOURNAL | 1991年 / 102卷 / 04期

关键词：

D O I：

10.1086/115974

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present 3.8-mu-m images of the Jovian satellite Io at an unprecedented ground-based resolution of 0".18. The images were obtained through two-dimensional speckle interferometry using the 6.86 m aperture of the Multiple Mirror Telescope in November 1989 and March 1990. To process the images we developed new speckle reduction techniques appropriate for objects with a size that is a significant fraction of the field of view. The images show three volcanic hotspots, including Pele, detected here for the first time since the Voyager 1 flyby in 1979.

引用

页码：1485 / 1489

页数：5

共 19 条

[1] ABSOLUTE CALIBRATION OF PHOTOMETRY AT 1-MU-M THROUGH 5-MU-M [J].