Physics
Scientific paper
Oct 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop...89m&link_type=abstract
XMM-Newton Proposal ID #05023701
Physics
Stars, White Dwarfs, Solar System, Hd 163296, Xmm-Newton Proposal 05023701
Scientific paper
Many, if not all, Herbig Ae/Be stars (HAeBes) are known to be strong X-ray emitters, however, the origin of the observed X-ray emission is unclear. In a few cases it can be attributed to unseen companions, but in the case of the HAeBe star HD 163296 binarity can be excluded. CCD spectra from imaging observations of HD 163296 can be well fitted by a single, cool (T=0.5 keV) thermal model, very much in contrast to typical active stars. We propose to obtain a high SNR, high spectral resolution grating spectrum in order to carry out direct plasma line diagnostics already successfully used in classical T Tauri stars to physically characterise the X-ray emission regions in HD 163296 and to solve the mystery of the X-ray emission mechanism in HAeBes.
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