|Title||First X-ray observation of the water vapor exosphere of Ceres|
|Author||Dr Konrad Dennerl|
|Description||We propose to utilize the unparalleled sensitivity of XMM in the soft X-ray range for the first ever X-ray study of Ceres. The first definitive detection of a water vapor exosphere around this nearest Dwarf Planet, which succeeded just recently with Herschel, makes Ceres a most interesting target for X-ray studies, because, as we have already demonstrated with XMM observations of Mars and comets, solar wind charge exchange induced X-rays are a most sensitive tracer of tenuous amounts of gas. AO-14 will be particularly favorable, because Dawn will then be in orbit around Ceres, providing the unique chance of combining remote global observations with simultaneous in-situ measurements. Due to the solar cycle, AO-14 will also offer the best opportunity for X-ray studies before 2022.|
|Publication||No observations found associated with the current proposal|
|Instrument||EMOS1, EMOS2, EPN, OM, RGS1, RGS2|
|Mission Description||The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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.
|Publisher And Registrant||European Space Agency|
|Credit Guidelines||European Space Agency, 2016-06-02T22:00:00Z, 076309, 17.56_20190403_1200. https://doi.org/10.5270/esa-yioow3i|