| |
 |
| Paper: |
Heavy-metal Abundances in DO-type White Dwarfs |
| Volume: |
519, Radiative Signatures from the Cosmos |
| Page: |
175 |
| Authors: |
Rauch, T.; Gamrath, S.; Quinet, P.; Hoyer, D.; Werner, K.; Kruk, J. W. |
| Abstract: |
Spectral lines of a variety of trans-iron elements were identified in high-resolution ultraviolet
spectra of DO-type white dwarfs. Abundance determinations by means of non-local thermodynamic
equilibrium stellar-atmosphere techniques have shown that, without exception, their abundances
are unexpectedly strong supersolar, much higher than predicted by
asymptotic-giant-branch nucleosynthesis calculations. We present our analyses and discuss the photospheric trans-iron element prominence. |
|
|
|
|
|
