Questions weÕd like to address with high-resolution X-ray spectroscopy
General:
How do OB stars produce X-rays at all? WhatÕs the connection between their massive winds and their X-ray emission?
Specific:
WhatÕs the nature of wind instabilites and shocks in normal hot stars? Can this (class of) model(s) work?
What role do magnetic fields play in hot stars and their X-ray emission? (e.g. do B stars have coronae? How can young hot stars be so hot and bright in X-rays? How can hot stars with extreme X-ray properties be understood?)