File:PIA16836-MarsCuriosityRover-JohnKleinRock-ChemAnal2.jpg
原始文件 (796 × 670像素,文件大小:42 KB,MIME类型:image/jpeg)
摘要
描述PIA16836-MarsCuriosityRover-JohnKleinRock-ChemAnal2.jpg |
English: JPL Home
Earth Solar System Stars & Galaxies Science & Tech http://photojournal.jpl.nasa.gov/catalog/PIA16836 PIA16836: Chlorinated Forms of Methane at "John Klein" Site Target Name: Mars Mission: Mars Science Laboratory (MSL) Spacecraft: Curiosity Instrument: Sample Analysis at Mars (SAM) Product Size: 844 x 720 pixels (width x height) Produced By: JPL Full-Res TIFF: PIA16836.tif (1.824 MB) Full-Res JPEG: PIA16836.jpg (50.18 kB) Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original) Original Caption Released with Image: NASA's Curiosity rover has detected the simple carbon-containing compounds chloro- and dichloromethane from the powdered rock sample extracted from the "John Klein" rock on Mars. These species were detected by the gas chromatograph mass spectrometer (GCMS) on Curiosity's Sample Analysis at Mars instrument (SAM). The blue peak on the left shows the presence of chloromethane and the two red peaks on the right show the presence of dichloromethane. The powdered rock sample from John Klein was heated and some of the gas released was injected into the capillary column of the GCMS. The time at which different compounds exited the gas chromatograph column and entered the mass spectrometer, and the patterns produced in the mass spectrometer indicated molecular identity. This chart also indicates "blank runs," which were conducted on Mars prior to delivery of this drilled sample to SAM. The runs helped to insure that signals from the gases released from the John Klein sample were above background levels. Curiosity began drilling at John Klein in February 2013. The SAM analysis was conducted on Sol 200 (the 200th Martian day of Curosity's operations, which was Feb. 27, 2013, on Earth). Both chloro- and dichloromethane were also detected earlier by SAM at the "Rocknest" drift. It is possible that these simple carbon-containing compounds were produced by the reaction between Martian carbon and chlorine released when this sample was heated in the SAM oven. However, analysis of an additional drilled sample is required to help scientists understand if instead any residual terrestrial carbon from the drill, or perhaps chlorine left over from the Rocknest sample, is responsible for the generation of some or all of these compounds. In any case, these detections demonstrate clearly that the SAM GCMS is performing as designed and ready to continue the search for organic compounds in Gale Crater. JPL manages the Mars Science Laboratory/Curiosity for NASA's Science Mission Directorate in Washington. The rover was designed, developed and assembled at JPL, a division of the California Institute of Technology in Pasadena. For more about NASA's Curiosity mission, visit: http://www.jpl.nasa.gov/msl, http://www.nasa.gov/mars, and http://mars.jpl.nasa.gov/msl. Image Credit: NASA/JPL-Caltech Image Addition Date: 2013-03-12 |
日期 | |
来源 | http://photojournal.jpl.nasa.gov/jpeg/PIA16836.jpg |
作者 | NASA/JPL-Caltech |
许可协议
Public domainPublic domainfalsefalse |
本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ||
警告:
|
此文件中描述的项目
描繪內容
12 3 2013
文件历史
点击某个日期/时间查看对应时刻的文件。
日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
---|---|---|---|---|---|
当前 | 2023年7月3日 (一) 10:29 | 796 × 670(42 KB) | User-duck | Cropped black border using CropTool with lossless mode. | |
2013年3月12日 (二) 22:42 | 844 × 720(49 KB) | Drbogdan | User created page with UploadWizard |
文件用途
以下2个页面使用本文件:
全域文件用途
以下其他wiki使用此文件:
- en.wikipedia.org上的用途
- es.wikipedia.org上的用途
- fr.wikipedia.org上的用途