Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hrxs.confe..53g&link_type=abstract
High Resolution X-ray Spectroscopy with XMM-Newton and Chandra, Proceedings of the international workshop held at the Mullard Sp
Physics
Scientific paper
High-resolution X-ray spectroscopy from XMM-Newton and Chandra has given new access to a number of physical processes occurring in cool star atmospheres. The origin of the observed energy is in the center of current debates, although there is little doubt that the magnetic fields confining the plasma are themselves responsible for the energy release. Density diagnostics from X-ray spectra is used to derive pressures, emitting masses and volumes and therefore the thermal energy in the plasma. The composition of stellar coronae reveals a number of anomalies, in particular in magnetically active stars, that are unexplained. Spectroscopy is also a valuable tool for measuring mass flows and Doppler motions in binary systems. Despite the large information content in X-ray spectra, numerous caveats due to the complexity of coronae should be considered. The interpretation of stellar coronal spectra should in particular address the statistical properties of coronae, e.g., time-dependent stochastic heating, statistical distributions of densities across the coronal volume, or time- and temperature-dependent composition.
No associations
LandOfFree
Coronae of Cool Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Coronae of Cool Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coronae of Cool Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-965610