论文标题
合并的白矮人和核合成
Merged white dwarfs and nucleosynthesis
论文作者
论文摘要
轨道衰变机制认为，双白矮人合并是不可避免的，但极为罕见。尽管某些合并导致爆炸，但幸存者重新点燃了氦气并燃烧了数万年或数百万年。候选幸存者包括极端的氦星，R CRB变量和各种氦富的舒张星。幸存者表面上的核废料提供了恒星在合并期间及其核合成之前的核历史的证据。广泛而深度的光谱调查为未来的发现提供了丰富的前景。
Orbital decay mechanisms argue that double white dwarf mergers are inevitable, but extremely rare. Whilst some mergers result in explosions, the survivors re-ignite helium and burn brightly for tens of thousands or millions of years. Candidate survivors include extreme helium stars, R CrB variables and various classes of helium-rich subluminous star. Nuclear waste on the survivors' surfaces provides evidence of the stars' nuclear history prior to and their nucleosynthesis during the merger. Extensive and deep spectroscopic surveys offer rich prospects for future discoveries.
