A dataset provided by the European Space Agency

Proposal ID 086206
Title The effect of stellar X-ray radiation on super-Earths through time
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0862060401
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0862060501
DOI https://doi.org/10.57780/esa-wc87l2g
Principal Investigator, PI Dr Simon Joyce
Abstract The X-ray emissions from exoplanet host stars are a key to understanding theevolution of planetary atmospheres. We propose X-ray and UV observations of 7stars known to host multiple transiting super-Earths. The data will be combinedwith transit spectroscopy and synthesised EUV spectra to provide the crucialinput for detailed atmospheric modelling. The proposed observations will almostdouble the sample of super-Earths with well characterised XUV radiationenvironments. The highest priority target is K2-18 which is the first exoplanetwhere the signature of water has been detected in its atmosphere. This study isdesigned to answer key questions about exoplanet atmospheres, including theirevolution, evaporation, photochemistry and production of biologically significant molecules.
Publications
  • The K2-3 System Revisited: Testing Photoevaporation and Core-powered Mass Loss with Three Small Planets Spanning the Radius Valley |Diamond-Lowe, Hannah, Kreidberg, Laura, et al. | AJ | 164-172 | 2022 | 2022AJ....164..172D | http://ui.adsabs.harvard.edu/#abs/2022AJ....164..172D
  • The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions |Pan, Zeyang, Qu, Zhijie, et al. | ApJS | 271-62 | 2024 | 2024ApJS..271...62P | http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P
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 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.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2021-07-23T00:00:00Z
Keywords "transit spectroscopy", "synthesised euv spectra", "atmospheric modelling", "xray emissions", "priority target", "exoplanet atmospheres", "answer key", "stellar xray radiation", "planetary atmospheres", "super earths"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Simon Joyce, 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