Classical T Tauri stars (CTTS) are young, accreting systems. The accretioncauses a variable soft X-ray excess and unusual line ratios in the He-liketriplets. Accretion signatures can also be seen in optical Doppler images.However, the true correlation of these different signatures only accessible bysimultaneous X-ray and ground-based observations has not been studied to date.We propose an 80 ksec XMM-Newton observation covering two full rotations of theCTTS MN Lup; furthermore, we propose simultaneous VLT/UVES spectral observationsto obtain a Doppler image of its surface. With its short rotation period andfast rotation, MN Lup is a truly unique target for these observations.
Instrument
EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage
2011-08-12T00:30:17Z/2011-08-13T05:53:04Z
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 Uwe Wolter, 2012, 'X-rays and Doppler imaging: Do soft emission and accretion coincidequestionMark', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dcdq965
