German astronomers discover three new hydrogen-deficient pre-white dwarfs

Using the X-shooter instrument at ESO's Very Large Telescope (VLT), German astronomers have detected three new pre-white dwarfs, which turned out to be strongly hydrogen-deficient. The finding was reported in a research paper published December 20 on the pre-print server arXiv.

source https://phys.org/news/2024-12-german-astronomers-hydrogen-deficient-pre.html