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Paper: |
Using Grids of High Resolution Synthetic Spectra in the Analysis of [WCE] Stars |
Volume: |
464, Circumstellar Dynamics at High Resolution |
Page: |
309 |
Authors: |
Keller, G. R.; Bianchi, L.; Herald, J. E.; Maciel, W. J. |
Abstract: |
Our grids of synthetic spectra cover the parameter regime of H-deficient
central stars of planetary nebulae (CSPNe) of the [WC] and PG1159 types and
were used to analyze UV and far-UV spectra of the hot [WCE] central stars of
NGC 6905, NGC 5189 and Sand 3. The use of the grids enables systematic
analysis of the observed spectra in order to constrain stellar parameters and
facilitates line identification. The grids of synthetic spectra are available
at http://dolomiti.pha.jhu.edu/planetarynebulae.html and will be augmented.
The synthetic spectra from Keller et al. (2011), intended for [WC] stars
with temperatures above 50 000 K, which are already on-line, have been
recently updated to include the detailed flux calculation for wavelengths
below 900 Å. |
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