Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002hrxs.confe..49w&link_type=abstract
High Resolution X-ray Spectroscopy with XMM-Newton and Chandra, Proceedings of the international workshop held at the Mullard Sp
Physics
1
Scientific paper
We have observed the triple O star system HD 206267 with Chandra HETGS for the purpose of studying the properties and dynamics of the system's stellar wind. The triple system includes a 3.7 day binary which was observed once at each of the two phases of quadrature. The spectrum contains emission lines from hydrogen and helium-like oxygen, neon, and magnesium, helium-like silicon and the iron L-shell ions XVII, XVIII, and XIX. We have fit this spectrum with a combination of emission-line spectra of the individual ions at the temperatures at which the populations of the ions peak. From this fit we derive a temperature differential emission measure distribution which is cut off at temperatures above ~10 MK. All lines are very broad with HWHM velocities of ~ 1500 - 2000 km/s. The Lyman_alpha lines from O, Ne, and Mg are blue shifted and asymmetric as would be expected from shocks within a line driven wind of considerable continuum opacity. The stellar triplet revealed the main orbital velocity of 320 km/s through shifts in the X-ray lines. So far, we have not found any indications for a colliding wind in the X-ray spectrum.
Huenemoerder David P.
Ishibashi Kazunori
Schulz Norbert S.
Wojdowski Patrick S.
No associations
LandOfFree
The Hot Star Triplet HD 206267A 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 The Hot Star Triplet HD 206267A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Hot Star Triplet HD 206267A will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-965604