49 citations · 107 across the 4 of their papers we have counts for
5 papers
Post-merger evolution of double helium white dwarfs and distribution of helium-rich hot subdwarfs
Jinlong Yu, Xianfei Zhang, Guoliang Lv
The mergers of double helium white dwarfs are believed to form isolated helium-rich hot subdwarfs. Observation shows that the helium-rich hot subdwarfs can be divided into two subg…
Population synthesis of helium white dwarf--red giant star mergers and the formation of lithium-rich giants and carbon stars
Xianfei Zhang, C. Simon Jeffery, Yaguang Li +1
The formation histories of lithium-rich and carbon-rich red giants are not yet understood. It has been proposed that the merger of a helium-core white dwarf with a red giant branch…
The double helium-white dwarf channel for the formation of AM CVn binaries
Xianfei Zhang, Jinzhong Liu, C. Simon Jeffery +2
Most close double helium white dwarfs will merge within a Hubble time due to orbital decay by gravitational-wave radiation. However, a significant fraction with low mass ratios wil…
Evolution models of helium white dwarf--main-sequence star merger remnants: the mass distribution of single low-mass white dwarfs
Xianfei Zhang, Philip D. Hall, C. Simon Jeffery +1
It is not known how single white dwarfs with masses less than 0.5Msolar -- low-mass white dwarfs -- are formed. One way in which such a white dwarf might be formed is after the mer…
White-dwarf red-giant mergers, early-type R stars, J stars and lithium
Xianfei Zhang, C. Simon Jeffery
Early-type R stars and J stars are a special type of carbon star, having enhanced nitrogen (), lithium, a low \iso{12}{C}/\iso{13}{C} ratio () and no s-…