论文标题
Abell 30-在重生的行星星云中，二进制中央恒星
Abell 30 -- A Binary Central Star Among the Born-Again Planetary Nebulae
论文作者
论文摘要
八个行星星云已被识别为“ born-Again”，这是一类以低质量（$ \ sim $$ 10^{ - 4} $ m $ _ {\ odot} $）的对象，几乎没有氢。该类的原型Abell 30也属于行星星云的一小部分，这些星云表现出极端的丰度差异因子（其中Abell 30是最极端的），这一现象与二进制恒星相互作用密切相关。我们报告了光曲线亮度变化的存在，其周期为1.060天，这些变化高度暗示了Abell 30中的二进制中央恒星。如果得到确认，则该检测支持二进制中心恒星与极端丰度差异之间的拟议联系。
Eight planetary nebulae have been identified as `born-again', a class of object typified by knotty secondary ejecta having low masses ($\sim$$10^{-4}$ M$_{\odot}$) with nearly no hydrogen. Abell 30, the archetype of the class, also belongs to a small subset of planetary nebulae that exhibit extreme abundance discrepancy factors (where Abell 30 is the most extreme), a phenomenon strongly linked to binary star interactions. We report the presence of light curve brightness variations having a period of 1.060 days that are highly suggestive of a binary central star in Abell 30. If confirmed, this detection supports the proposed link between binary central stars and extreme abundance discrepancies.
