Hot Jupiters are gas giant extrasolar planets close to their host stars. In twostellar systems with hot Jupiters, a cyclic variation of chromospheric activitysynchronized to the planet.s revolution, and not to the stellar rotation, wasobserved. The proposed mechanism to explain this activity enhancement is amagnetic interaction between the star and the hot Jupiter. The extrasolar planetWASP-43b with a period of 0.81d is the closest-orbiting hot Jupiter. WASP-43also shows a 15.6d rotation period, and the presence of strong Ca H+K emissionindicating that it is an active star. We propose a short observation of WASP-43to determine its X-ray flux in order to prepare a future longer X-rayobservation of this remarkable system.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2012-05-11T04:48:55Z/2012-05-11T09:47:29Z
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.
European Space Agency, Dr Nicolas Grosso, 2013, 'Preliminary detection of the X-ray emission from WASP-43', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-z158wh3
