2 papers
astro-ph.SR2019
Double white dwarf merger products among high-mass white dwarfs
Sihao Cheng, Jeffrey D. Cummings, Brice Ménard +1
Double white dwarf (double-WD) binaries may merge within a Hubble time and produce high-mass WDs. Compared to other high-mass WDs, the double-WD merger products have higher velocit…
astro-ph.SR2019
A cooling anomaly of high-mass white dwarfs
Sihao Cheng, Jeffrey D. Cummings, Brice Ménard
Recently, the power of Gaia data has revealed an enhancement of high-mass white dwarfs (WDs) on the Hertzsprung--Russell diagram, called the Q branch. This branch is located at the…