The X-ray emissions from exoplanet host stars are a key to understanding theformation and evolution of planetary atmospheres. We propose X-ray observationsof 13 stars with known transiting planets which will be combined with UVobservations and synthesised EUV spectra to provide the crucial input fordetailed atmospheric modelling. The data will be included in a catalogue of 75stars covering the full cool star spectral range, and will become an invaluablereference for future exoplanet studies. The addition of these 13 targets willprovide a complete sample out to 110 pc. The construction of this catalogue, andthe development of the associated models, will lay a foundation for studyingexoplanet atmospheres via transit spectroscopy and the interpretation of atmospheric biomarkers.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2019-09-21T15:34:31Z/2019-09-21T20:17:51Z
Version
17.56_20190403_1200
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 Simon Joyce, 2020, 'X-ray emissions of exoplanet host stars and evolution of planetary atmospheres', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ltbrxfu
