X-rays and Doppler imaging: Do soft emission and accretion coincide?

Details X-rays and Doppler imaging: Do soft emission and accretion coincide? X-rays and Doppler imaging: Do soft emission and accretion coincide?

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...19w&link_type=abstract

XMM-Newton Proposal ID #06705801

Physics

Stars, White Dwarfs, Solar System, Mn Lup

Scientific paper

Classical T Tauri stars (CTTS) are young, accreting systems. The accretion causes a variable soft X-ray excess and unusual line ratios in the He-like triplets. Accretion signatures can also be seen in optical Doppler images. However, the true correlation of these different signatures only accessible by simultaneous 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 the CTTS MN Lup; furthermore, we propose simultaneous VLT/UVES spectral observations to obtain a Doppler image of its surface. With its short rotation period and fast rotation, MN Lup is a truly unique target for these observations.

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