| Name | 086206 |
| Title | The effect of stellar X-ray radiation on super-Earths through time |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0862060401 |
| DOI | https://doi.org/10.57780/esa-wc87l2g |
| Author | European Space Agency |
| Description | The X-ray emissions from exoplanet host stars are a key to understanding the evolution of planetary atmospheres. We propose X-ray and UV observations of 7 stars known to host multiple transiting super-Earths. The data will be combined with transit spectroscopy and synthesised EUV spectra to provide the crucial input for detailed atmospheric modelling. The proposed observations will almost double the sample of super-Earths with well characterised XUV radiation environments. The highest priority target is K2-18 which is the first exoplanet where the signature of water has been detected in its atmosphere. This study is designed to answer key questions about exoplanet atmospheres, including their evolution, evaporation, photochemistry and production of biologically significant molecules. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-05-28T04:46:16Z/2020-07-01T07:49:09Z |
| Version | 18.02_20200221_1200 |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2021-07-23T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2021, The Effect Of Stellar X-Ray Radiation On Super-Earths Through Time, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-wc87l2g |