| Proposal ID | 086434 |
| Title | The influence of young stellar coronae on young exoplanets |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0864340101 |
| DOI | https://doi.org/10.57780/esa-c8vbjqo |
| Principal Investigator, PI | Dr Antonio Maggio |
| Abstract | We propose X-ray observations of nearby F-G-K young (20-40 Myr) stars hostingtransiting exoplanets, recently discovered by TESS and Kepler (K2), and includedin follow-up campaigns with HARPS@ESO 3.6m and HARPS-N@TNG. DS Tuc and HD 33512host super-Earth/Neptune mass planets with inflated atmospheres, due to strongirradiation from their host stars. V1298 Tau harbors a warm Jupiter still incontraction toward its final size. Our immediate objective is to assess X-rayspectral and time variability of the host stars, so to characterize theiractivity level and the dose of high-energy radiation received by very youngplanets. Final goals are the determination of evolutionary paths of exoplanetsin the mass-radius diagram, and constraints for modeling planetary atmospheres. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-01-23T18:05:29Z/2021-04-12T01:05:31Z |
| 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. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2022-05-18T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "time variability", "hd 33512", "myr stars", "warm jupiter", "modeling planetary atmospheres", "transiting exoplanets", "xray spectral", "mass radius diagram", "kepler k2", "stellar coronae", "energy radiation received", "v1298 tau harbors", "inflated atmospheres", "neptune mass planets", "ds tuc", "final size", "evolutionary paths", "activity level", "super earth" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Antonio Maggio, 2022, 'The influence of young stellar coronae on young exoplanets', 19.16_20210326_1200, European Space Agency, https://doi.org/10.57780/esa-c8vbjqo |