A dataset provided by the European Space Agency

Proposal ID 086156
Title Disruption of coronal activity due to a massive hot Jupiter.
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861560101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861560201

DOI https://doi.org/10.57780/esa-ho3togq
Principal Investigator, PI Dr Ignazio Pillitteri
Abstract In the young system of WASP-18 the coronal emission is almost two orders ofmagnitude lower than expected for a star of its spectral type (F6) and age ( 800Myr). The puzzling behavior could be explained as due to tidal interaction withits very massive hot Jupiter (10 M J ) that prevents the formation of a magneticdynamo in the shallow convective zone of the star and of thus of the corona.Here we want to observe the system of KELT-24 which is very similar to WASP-18.It is formed by an F5 star orbited by a massive hot Jupiter every 5 days. Ameasurement of its X-ray flux and luminosity derived from a 25 ks XMM-EPICexposure can tell us if KELT-24 behaves like a young F type star of Hyades or ifits X-ray activity is quenched by the interaction with its 5 M_J hot Jupiter.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2020-05-14T19:55:06Z/2020-05-19T00:55:05Z
Version 18.02_20200221_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 2021-05-28T00:00:00Z
Last Update 2025-08-04
Keywords "XMM", "magnitude lower", "tidal interaction", "spectral type f6", "m_j hot jupiter", "massive hot jupiter", "f5 star orbited", "convective zone", "xray flux", "type star", "xray activity", "coronal emission", "xmm epic exposure", "magnetic dynamo", "EPIC", "coronal activity"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Ignazio Pillitteri, 2021, 'Disruption of coronal activity due to a massive hot Jupiter.', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-ho3togq