Discoveries by the NASA TESS mission of nearby stars hosting planets either sideof the ..radius-period valley are presenting the very first opportunities tostudy the feature in the context of individual systems. Knowledge of the sharedhigh- energy irradiation history of planets in such systems is a powerful toolthat could provide crucial evidence towards determining which of the proposedmechanisms for sculpting the valley is correct. We propose XMM-Newtonobservations for two nearby TESS systems with planets either side of the valley,with the aim of measuring the XUV environment in which they reside. From thesedata, we will be able to investigate the photoevaporation and evolution historyof the planets, and place them in the context of the wider population and the generation mechan
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2021-08-28T21:12:25Z/2021-09-12T16:20:43Z
Version
19.16_20210326_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 George King, 2022, 'Investigating the irradiation and evolution of TESS planets either side', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-pn7ltur
