| Proposal ID | 094404 |
| Title | Testing the origin of the exoplanet radius valley with new systems from TESS |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0944040401 |
| DOI | https://doi.org/10.57780/esa-te5ki2t |
| Principal Investigator, PI | Mr Jorge Fernandez Fernandez |
| Abstract | Newly-discovered exoplanets from TESS provide the opportunity to assess therelative importance of atmospheric escape mechanisms proposed to explain thebimodal distribution of super-Earths and mini-Neptunes discovered with Kepler.We will measure X-ray spectra and fluxes of the host stars of a sample ofTESS planets as inputs to models comparing XUV-driven photoevaporation withcore-powered mass loss. Determining the relative importance of thesemechanisms is important for studies of exoplanet habitability, particularlyaround M-dwarfs where the cumulative XUV irradiation in the habitable zoneis much higher. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2024-06-23T06:10:38Z/2024-06-23T10:30:38Z |
| Version | 21.23_20231215_1101 |
| 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 | 2025-07-10T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Jorge Fernandez Fernandez, 2025, 'Testing the origin of the exoplanet radius valley with new systems from TESS', 21.23_20231215_1101, European Space Agency, https://doi.org/10.57780/esa-te5ki2t |