We propose to perform high-resolution X-ray spectroscopy of MP Muscae, aclassical T Tauri star with an age of about 10 Myr, and hence quite old for itsclass. In fact, MP Mus is the only known star of this age with evidence of anaccretion disk, found in a survey of the Lower Centaurus-Crux subgroup in theScorpius- Centaurus association. Moreover, this star also shows evidence of acold dusty disk, as indicated by excess emission at IR and mm wavelengths. Theproposed observation will allow us to address several issues concerning theevolution of the X-ray emission in pre-main-sequence stars, the mechanism(s) ofsuch emission, the element abundances of the emitting plasma, and the influenceof high-energy radiation on the surrounding medium where planetary formation is likely occurring.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2006-08-19T09:30:48Z/2006-08-20T16:35:22Z
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 Antonio Maggio, 2007, 'X-ray emission from an adolescent classical T Tauri star', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ww7ia33
