论文标题
白矮人中的脉动HE 1017-1352：确认热DAV星级
Pulsation in the white dwarf HE 1017-1352: confirmation of the class of hot DAV stars
论文作者
论文摘要
我们报告了T_eff 〜32 000 k da White Dwarf Star HE 1017-1352的周期性变化的检测。我们在三个单独的夜晚使用4.1 M SOAR望远镜获得了时间序列的光度法，总计16.8 h。从频率分析中，我们发现了四个时期的605 s，556 s，508 s和869 s，高于1/1000的错误警报概率检测极限。检测到的模式与低谐波程度G模式的非径向脉动兼容，径向均高于〜9。该检测证实了HE 1017-1352的脉动性质，因此存在新的热DA White White White Dwarf恒星的新型脉动类别。此外，我们检测到1.52 h的长期，与Da White Dwarf星的旋转期兼容。
We report the detection of periodic variations on the T_eff ~32 000 K DA white dwarf star HE 1017-1352. We obtained time series photometry using the 4.1 m SOAR telescope on three separate nights for a total of 16.8 h. From the frequency analysis we found four periods of 605 s, 556 s, 508 s and 869 s with significant amplitudes above the 1/1000 false alarm probability detection limit. The detected modes are compatible with low harmonic degree g-mode non-radial pulsations with radial order higher than ~ 9. This detection confirms the pulsation nature of HE 1017-1352 and thus the existence of the new pulsating class of hot DA white dwarf stars. In addition, we detect a long period of 1.52 h, compatible with a rotation period of DA white dwarf stars.
