We propose joint XMM-Newton and HST observations of the nearby young G-type starHIP 67522, hosting a close-in Jupiter-size transiting exoplanet discovered withTESS, and possibly a second smaller body. The first confirmed planet in thisyoung system (virgul17 Myr) is expected to be in a contraction phase toward its finalsize and possibly affected by photoevaporation. Our immediate objective is toreconstruct the full XUV spectrum, and to assess the spectral and timevariability of the host star. In this way we will characterize its activitylevel and the dose of high-energy irradiation in the planetary environment. Thissystem is particularly suitable to investigate evolutionary paths of exoplanetsin the mass-radius diagram, and to provide constraints for planetary atmospheres modeling.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2022-07-11T23:15:16Z/2022-07-12T18:45:16Z
Version
20.08_20220509_1852
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 A. Maggio, 2023, 'The XUV environment of the young exoplanet HIP 67522b', 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-31pzrep
