A dataset provided by the European Space Agency

Proposal ID 078492
Title The X-ray irradiation of the nearest transiting super-Earth
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0784920201

DOI https://doi.org/10.5270/esa-4h6k3g6
Principal Investigator, PI Dr Peter Wheatley
Abstract The recent discovery of a super-Earth transiting the bright star HD219134provides an unprecedented opportunity for detailed study of the atmosphere of alow-mass exoplanet. The K3V star is located at a distance of only 6.5pc,enabling sensitive measurements of its X-ray flux and spectrum. This isimportant because X-ray/EUV irradiation is believed to drive the observedevaporation of hot Jupiters (HD209458b, HD189733b) and Neptunes (GJ436b), andHD219134b will extended these studies to the super-Earth regime. Here we proposean XMM-Newton observation that will define the high-energy environment of theplanet and allow estimates of its atmospheric escape rate. This will aid theinterpretation of atmosphere observations with HST, Spitzer, JWST etc.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-06-13T21:38:27Z/2016-06-14T08:11:47Z
Version 21.51_20241115_1113
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 2017-07-05T22:00:00Z
Last Update 2026-07-09
Keywords "transiting super earth", "HD219134", "XMM-Newton", "XMM", "k3v star", "super earth regime", "super earth transiting", "sensitive measurements", "xray irradiation", "bright star hd219134", "hot jupiters hd209458b", "low mass exoplanet", "HST", "euv irradiation", "atmospheric escape rate", "neptunes gj436b", "xray flux", "jwst etc", "xmm newton"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Peter Wheatley, 2017, 'The X-ray irradiation of the nearest transiting super-Earth', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-4h6k3g6
Rights Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.