Title: Line Profile Diagnostics of the Wind in HD 206267 

Object: HD 206267

Exposure: 150 ks
Lead Scientist: Norbert S. Schulz
[ ] Primary or [ X ] Backup
Constraints (none/easy/average) NONE
[ ] TOO?

Brief description:

The nature of the the X-ray emission in very young massive stars has 
been a key topic since the launch of Chandra. Very early in the mission
it became apparent that the classical paradigm of wind shocks is flawed
and either refined or entirely new mechanisms need to be introduced in 
order to reach a more coherent description of the observe phenomena. 
HD 206267 is a O6.5V star at the heart of the 3 Myr of young stellar
cluster Tr37. It hs been observed with the HETG as part of the GTO
program for 75 ks in Cycle 2. Its X-ray emission, though faint, clearly
showed signatures which in fact did fit the classical wind shock paradigm
more than the coronal signature found in other young stars. However,
its line profiles, though very broad as expected, also indicate some
blue-shift and asymmetry, but statstically hard to quantify. In order 
to be able to test recently developed model profiles for wind of various
properties, more exposure is needed.