A dataset provided by the European Space Agency

Name: XUV irradiation of the youngest and nearest transiting super-Earths and Neptunes
Published: 2019-09-28T22:00:00Z

Proposal ID	082485
Title	XUV irradiation of the youngest and nearest transiting super-Earths and Neptunes
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0824850201
DOI	https://doi.org/10.5270/esa-6rgt444
Principal Investigator, PI	Prof Peter Wheatley
Abstract	A lack of close-in Neptune-sized planets, and the recently-discovered bimodaldistribution of super-Earths and sub-Neptunes from Kepler, have both beeninterpreted as evidence that exoplanet evolution is profoundly affected by XUV-driven atmospheric evaporation. The key uncertainty in this interpretation isthe energetic efficiency of the atmospheric escape, which can be measured bycombining HST UV and XMM X-ray observations, but only for nearby and youngtransiting systems. The Kepler planets are too far away, but fortunately K2 andMEarth are finding small planets that are nearby and/or situated in clusterswith known young ages. We propose XMM measurements that will be combined withscheduled HST observations to determine how mass loss efficiency depends on planet size.
Publications	X-ray irradiation of three planets around Hyades star K2 -136 \|Fern\\u00e1ndez Fern\\u00e1ndez, Jorge, Wheatley, Peter J., \| AN \| 343-10076 \| 2022 \| 2022AN....34310076F \| http://ui.adsabs.harvard.edu/#abs/2022AN....34310076F Hyades Member K2-136c: The Smallest Planet in an Open Cluster with a Precisely Measured Mass \|Mayo, Andrew W., Dressing, Courtney D., et al. \| AJ \| 165-235 \| 2023 \| 2023AJ....165..235M \| http://ui.adsabs.harvard.edu/#abs/2023AJ....165..235M The shared evaporation history of three sub-Neptunes spanning the radius-period valley of a hyades star \|Fern\\u00e1ndez Fern\\u00e1ndez, Jorge, Wheatley, Peter J., \| MNRAS \| 522-4251 \| 2023 \| 2023MNRAS.522.4251F \| http://ui.adsabs.harvard.edu/#abs/2023MNRAS.522.4251F 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 From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
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 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	2019-09-28T22:00:00Z
Keywords	"sub neptunes", "atmospheric escape", "bimodal distribution", "planet size", "super earths", "xmm xray", "fortunately k2", "mass loss efficiency", "xuv irradiation", "energetic efficiency", "XMM", "transiting super earths", "transiting systems", "xmm measurements", "profoundly affected", "kepler planets", "neptune sized planets", "hst uv", "exoplanet evolution", "key uncertainty", "HST"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Prof Peter Wheatley, 2019, 'XUV irradiation of the youngest and nearest transiting super-Earths and Neptunes', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-6rgt444