哈勃091009：哈勃观测了卫星撞月过程

gohomeman1

http://hubblesite.org/newscenter/archive/releases/2009/26/full/

The full news release story:
新闻全文
NASA's Hubble Space Telescope has made a series of observations immediately preceding and following the Lunar Crater Observation and Sensing Satellite (LCROSS) Centaur rocket stage and shepherding spacecraft impacts at the lunar south pole, on October 9 at 7:31 and7:35 a.m. EDT.
2009.10.9：美国宇航局的哈勃太空望远镜及时的进行了一系列观测，全程记录了美国东部时间2009.10.9早晨7:31和7:35，半人马火箭末级、月球坑观测和传感卫星（LCROSS）先后撞击月球南极的过程。
Hubble's Wide Field Camera 3 (WFC3) and Space Telescope Imaging Spectrograph (STIS) were pointed just off the southern limb of the moon to look for a cloud of vaporized material blasted into space by the successive impacts of the rocket booster and spacecraft. The WFC3 images do not show any evidence for a temporary exosphere resulting from the impacts.
哈勃太空望远镜的第3代广域相机（WFC3）和空间望远镜成像光谱仪（STIS）对准月球南极区域，以观测因火箭末级和卫星成功撞击月球所激起的汽化物质云。但是，WFC3的图像显示，没有因撞击而产生的任何临时外逸物质的迹象。
Hubble's ultraviolet sensitivity allowed astronomers to look specifically for hydroxyl (OH) that would have been produced by vaporized material from the impact. The STIS and WFC3 looked for emission from OH which would have formed if water molecules had been thrown into sunlight and broken apart by ultraviolet radiation into hydrogen and hydroxyl.
哈勃对紫外光敏感的观测仪器使天文学家能够在撞击的汽化物中发现羟基（OH）的特征谱线。WFC3和STIS搜寻OH的辐射线，水分子能被太阳的紫外辐射分裂为H原子和OH基。
"A preliminary analysis of the STIS spectra do not show any clear evidence for hydroxyl, but further analysis is needed," said Hubble co-investigator Alex Storrs. The Hubble team plans on further analysis of their data.
哈勃项目合作调研者亚历克斯.Storrs说：“STIS的初步数据分析显示没有羟基的清晰证据，不过我们需要进一步的分析。” 哈勃团队准备深入分析他们的数据。

CONTACT
联系人
Ray Villard
雷.维兰德
Space Telescope Science Institute, Baltimore, Md.
马里兰州巴尔的摩市，太空望远镜科学研究所
410-338-4514
villard@stsci.edu

Alex Storrs
Towson University, Baltimore, Md.
马里兰州巴尔的摩市，托森大学
410-704-3003
astorrs@towson.edu