We propose a systematic investigation of the stellar activity of M dwarfs in asample of close binary systems with a white dwarf companion. We will use theX-ray flux as tracer of stellar activity and measure its dependence on therotational periods. A comparison with results for single stars from theliterature will assess whether both classes of M dwarfs follow the samerelation. This will test whether the current concept of magnetic braking inclose binaries is valid. Our results will have implications for many other typesof close binary systems
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2005-07-24T07:29:50Z/2006-03-09T18:20:21Z
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 Ralf Napiwotzki, 2007, 'Testing magnetic braking in close binaries', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-iw64zul
