| Name | 082485 |
| Title | XUV irradiation of the youngest and nearest transiting super-Earths and Neptunes |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824850201 |
| DOI | https://doi.org/10.5270/esa-6rgt444 |
| Author | Prof Peter Wheatley |
| Description | A lack of close-in Neptune-sized planets, and the recently-discovered bimodal distribution of super-Earths and sub-Neptunes from Kepler, have both been interpreted as evidence that exoplanet evolution is profoundly affected by XUV- driven atmospheric evaporation. The key uncertainty in this interpretation is the energetic efficiency of the atmospheric escape, which can be measured by combining HST UV and XMM X-ray observations, but only for nearby and young transiting systems. The Kepler planets are too far away, but fortunately K2 and MEarth are finding small planets that are nearby and-or situated in clusters with known young ages. We propose XMM measurements that will be combined with scheduled HST observations to determine how mass loss efficiency depends on planet size. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2018-09-11T11:14:01Z/2018-09-11T23:10:41Z |
| Version | 17.56_20190403_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 | 2019-09-28T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2019-09-28T22:00:00Z, 082485, 17.56_20190403_1200. https://doi.org/10.5270/esa-6rgt444 |