| Name | 078356 |
| Title | High-energy irradiation of WASP-69 b: powering an extreme planetary wind |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0783560201 |
| DOI | https://doi.org/10.5270/esa-5wlg88m |
| Author | Mr Michael Salz |
| Description | Stellar X-ray irradiation drives planetary winds, whose properties remain largely unknown. WASP-69 b could be the most heavily evaporating hot Neptune within 100 pc, driving a wind 50 times stronger than that of HD 189733 b. This makes the system a highly promising new target for transit studies. The X-ray properties of the host star remain puzzling, however. Scaling the Ca H&K emission suggests an X-ray luminosity of 1-6e28 erg/s -- consistent with its previous identification with a ROSAT source at 60 distance. However, in a follow-up SWIFT snapshot, neither X-ray emission from WASP-69 nor the ROSAT source were detected. We propose a dedicated XMM observation to quantify the X-ray properties of WASP-69 and study the strong planetary wind. |
| Publication | No observations found associated with the current proposal |
| 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 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 | 2017-11-11T23:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Mr Michael Salz, 2017, 078356, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5wlg88m |