
| Proposal ID | 078356 |
| Title | High-energy irradiation of WASP-69 b: powering an extreme planetary wind |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0783560201 |
| DOI | https://doi.org/10.5270/esa-5wlg88m |
| Principal Investigator, PI | Mr Michael Salz |
| Abstract | Stellar X-ray irradiation drives planetary winds, whose properties remainlargely unknown. WASP-69 b could be the most heavily evaporating hot Neptunewithin 100 pc, driving a wind 50 times stronger than that of HD 189733 b. Thismakes the system a highly promising new target for transit studies. The X-rayproperties of the host star remain puzzling, however. Scaling the Ca H&Kemission suggests an X-ray luminosity of 1-6e28 erg/s -- consistent with itsprevious identification with a ROSAT source at 60 distance. However, in afollow-up SWIFT snapshot, neither X-ray emission from WASP-69 nor the ROSATsource were detected. We propose a dedicated XMM observation to quantify theX-ray properties of WASP-69 and study the strong planetary wind. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2016-10-21T04:52:32Z/2016-10-21T13:29:12Z |
| 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 | 2017-11-11T23:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | "XMM", "energy irradiation", "xray luminosity", "rosat source", "swift snapshot", "hd 189733", "HD 189733", "6e28 erg", "ROSAT", "planetary wind", "xray properties", "dedicated xmm", "xray emission" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Michael Salz, 2017, 'High-energy irradiation of WASP-69 b: powering an extreme planetary wind', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5wlg88m |