Here, we describe an implementation of an electron-multiplying charge-coupled device camera to search for seismological activity in white dwarfs (WD). The equipment was installed on the 2.12-m telescope at the Observatorio Astronómico Nacional San Pedro Mártir, Baja California, México. We have determined the proper operational regime to keep a very low noise while maintaining a high gain. We have also developed software for the instrument control system and data processing. Finally, we report the first results on the seismological activity of WD, obtained using photometry with one-second exposure. The results were compared to the known variables LAMOST J004628.31 + 343319.90 and GD 66. The WD 2255-001 showed very weak periodic activity with a dominant frequency of 67 mHz.

中文翻译：

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Observatorio Astronómico Nacional San Pedro Mártir 的星震学观测设备：白矮星

在这里，我们描述了电子倍增电荷耦合器件相机的实现，以搜索白矮星 (WD) 的地震活动。该设备安装在墨西哥下加利福尼亚州圣佩德罗马蒂尔国家天文台的 2.12 米望远镜上。我们已经确定了适当的操作机制，以在保持高增益的同时保持非常低的噪声。我们还开发了用于仪器控制系统和数据处理的软件。最后，我们报告了 WD 地震活动的第一个结果，该结果是使用一秒曝光的光度法获得的。将结果与已知变量 LAMOST J004628.31 + 343319.90 和 GD 66 进行比较。WD 2255-001 显示出非常弱的周期性活动，主频率为 67 mHz。