We propose to utilize the very favorable observing conditions of Mars for XMM inOct 2018 for detailed studies of Solar Wind Charge Exchange (SWCX) in itsexosphere, accompanied by simultaneous in-situ measurements of the solar windwith Mars Express and MAVEN. XMM, the by far best X-ray satellite for this kindof study, has already detected SWCX emission from the Martian exosphere. Thisfinding has consequences for X-ray astrophysics in general (soft X-raybackground), is important for our understanding of planetary evolution(atmospheric outgassing), and opens up a novel possibility of remote globalimaging of planetary exospheres and their spatial and temporal variability. Asthe observation will take place close to solar minimum, any interference with scattered solar X-rays will be minimized.
Instrument
EMOS1, EMOS2, EPN, RGS1, RGS2
Temporal Coverage
2018-10-20T11:27:07Z/2018-10-21T15:28:30Z
Version
20.10_20230417_1156
Mission Description
The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
European Space Agency, Dr Konrad Dennerl, 2019, 'Simultaneous study of the Martian Exosphere with XMM comma Mars Express and MAVEN', 20.10_20230417_1156, European Space Agency, https://doi.org/10.5270/esa-bxt9oxi
