@article{article, title  = {{An ultra-massive white dwarf with a mixed hydrogen–carbon atmosphere as a likely merger remnant}},

 publisher = {{Springer Science and Business Media LLC}},

 url = {{}},

 year = {{2020}},

 month = {{7}},

 author = {{Hollands MA and Tremblay P-E and Gänsicke BT and Camisassa ME and Koester D and Aungwerojwit A and Chote P and Córsico AH and Dhillon VS and Gentile-Fusillo NP and Hoskin MJ et al}},

 doi = {{10.1038/s41550-020-1028-0}},

 volume = {{4}},

 journal = {{Nature Astronomy}},

 issue = {{7}},

 pages = {{663-669}},

 note = {{Accessed on 2025/11/17}}}