New horizons mapping of Europa and Ganymede

被引：55

作者：

Grundy, W. M.

Buratti, B. J.

Cheng, A. F.

Emery, J. P.

Lunsford, A.

McKinnon, W. B.

Moore, J. M.

Newman, S. F.

Olkin, C. B.

Reuter, D. C.

Schenk, P. M.

Spencer, J. R.

Stern, S. A.

Throop, H. B.

Weaver, H. A.

机构：

[1] Lowell Observ, Flagstaff, AZ 86001 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[4] NASA, Ames Res Ctr, SETI Inst, Mountain View, CA 94043 USA

[5] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[6] Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA

[7] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[8] SW Res Inst, Dept Space Studies, Boulder, CO 80302 USA

[9] Lunar & Planetary Inst, Houston, TX 77058 USA

[10] NASA Headquarters, Sci Mission Directorate, Washington, DC 20546 USA

来源：

SCIENCE | 2007年 / 318卷 / 5848期

关键词：

D O I：

10.1126/science.1147623

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The New Horizons spacecraft observed Jupiter's icy satellites Europa and Ganymede during its flyby in February and March 2007 at visible and infrared wavelengths. Infrared spectral images map H2O ice absorption and hydrated contaminants, bolstering the case for an exogenous source of Europa's "non-ice" surface material and filling large gaps in compositional maps of Ganymede's Jupiter-facing hemisphere. Visual wavelength images of Europa extend knowledge of its global pattern of arcuate troughs and show that its surface scatters light more isotropically than other icy satellites.

引用

页码：234 / 237

页数：4

共 27 条

[11] The temperature-dependent near-infrared absorption spectrum of hexagonal H2O ice [J].