VLT/NACO adaptive optics imaging of Titan ?
VLT/NACO adaptive optics imaging of Titan ?
复制标题
泰坦的 VLT/NACO 自适应光学成像？
DOI：
10.1051/0004-6361:20040027
复制
发表时间：
2004
影响因子：
6.5
通讯作者：
G. Zins
中科院分区：
文献类型：
--
作者：
E. Gendron;A. Coustenis;P. Drossart;Michel Combes;M. Hirtzig;F. Lacombe;D. Rouan;C. Collin;S. Pau;A. Lagrange;D. Mouillet;P. Rabou;T. Fusco;G. Zins
欧洲南方天文台甚大望远镜的NAOS/CONICA自适应光学系统的出现最近使我们有机会绘制土卫六表面的地图，并以高空间分辨率和对比度搜索大气变化。我们在这里报告的第一个结果，从一系列的观察土卫六进行了这种仪器在一些近红外窄带滤波器，覆盖不同的海拔地区和三个dierent的apendes（土卫六的轨道的16天）。我们已经取得了无与伦比的对比度图像显示复杂的地形泰坦的后半球，并发现了强有力的证据，南北不对称反转。描述了土卫六南极其他有趣的大气特征。
The advent of the NAOS/CONICA adaptive optics system at the ESO Very Large Telescope recently gave us the opportunity to map the surface of Titan and to search for atmospheric variations at high spatial resolution and contrast. We report here the first results from a series of observations of Titan performed with this instrument in a number of near-infrared narrow-band filters, covering various altitude regions and three dierent longitudes (out of the 16 days of Titan's orbit). We have achieved unequaled contrast on images showing complex topography on Titan's trailing hemisphere and have found robust evidence for the north-south asymmetry inversion. The presence of other interesting atmospheric features at Titan's South Pole is described.