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Mapping lunar surface chemistry: New prospects with the Chandrayaan-2 Large Area Soft X-ray Spectrometer (CLASS) |
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| Authors: | S Narendranath PS Athiray P Sreekumar V Radhakrishna A Tyagi BJ Kellett the CLASS team |
| Institution: | 1. Space Astronomy Group, ISITE Campus, ISRO, Marathalli Ring Road, Bangalore 560 037, India;2. STFC, Rutherford Appleton Laboratory, Chilton, UK;3. Department of Physics, University of Calicut, Malappuram, Kerala, India;4. e2V Centre for Electronic Imaging, Planetary and Space Science Research Institute, Open University, Milton Keynes, UK |
| Abstract: | Surface chemistry of airless bodies in the solar system can be derived from remote X-ray spectral measurements from an orbiting spacecraft. X-rays from planetary surfaces are excited primarily by solar X-rays. Several experiments in the past have used this technique of X-ray fluorescence for deriving abundances of the major rock forming elements. The Chandrayaan-2 orbiter carries an X-ray fluorescence experiment named CLASS that is designed based on results from its predecessor C1XS flown on Chandrayaan-1. We discuss the new aspects of lunar science that can be potentially achieved with CLASS. |
| Keywords: | Lunar elemental abundance X-ray fluorescence CLASS Chandrayaan-2 C1XS |
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