We have collected initial evidence that tidal interaction between a late-typestar and its close-in, massive planet can lead to a spin-up of the host star. Wepropose to explore this further by studying a small sample of proper motionpairs in which one of the stars is orbited a Hot Jupiter. We will determine ifthe gyrochronal age is different for the two stars, which would indicate a tidalspin up of the planet host star. We propose to observe 3 such systems with XMM,and to perform similar Chandra observations of 3 more systems with angularseparations <10.. We also propose to observe 10 near-by wide late-type binarieswithout planets to establish a reliable baseline for activity scatter in co-evalpairs of stars. The total proposed exposures are 142ks(XMM) + 119ks(Chandra).
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2013-08-04T07:09:56Z/2013-11-28T03:23:32Z
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 Katja Poppenhaeger, 2014, 'Planets spinning up their host stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-j0t00ew
