› Forums › Exoplanets › Spectra of some planet eating white dwarfs › He to H
4 September 2021 at 9:28 pm
#584650
![](https://britastro.org/wp-content/uploads/2016/11/picture-146-1478110706-80x80.jpg)
Participant
A quick literature search though brought up this reference which talks of WD with initial He atmospheres evolving an H dominated atmosphere through upward diffusion of H.
https://arxiv.org/abs/2008.07469
Anything heavier though I suspect must have been accreted.