论文标题
AM CVN二进制SDSS J113732.32+405458.3的爆发
An Outburst by AM CVn binary SDSS J113732.32+405458.3
论文作者
论文摘要
我们报告发现59.63分钟轨道周期AM CVN二进制SDSS J113732.32+405458.3的光学亮度的发现增加了一个级级。公共$ g $，$ r $和$ i $ $ band数据来自Zwicky Transient设施（ZTF）在300天的时间内显示下降，而调试的一些数据点可能显示出峰值。这样的爆发可能是由于积聚磁盘状态发生的变化，这使得这是最长的AM CVN二进制，以揭示不稳定的积聚盘。现在，该对象回到了先前观察到的（通过SDSS和PS-1）静态亮度，可能是由积聚的白矮人设定的。对该对象的先前观察还表明，此类爆发的复发时间可能超过12年。
We report the discovery of a one magnitude increase in the optical brightness of the 59.63 minute orbital period AM CVn binary SDSS J113732.32+405458.3. Public $g$, $r$, and $i$ band data from the Zwicky Transient Facility (ZTF) exhibit a decline over a 300 day period, while a few data points from commissioning show that the peak was likely seen. Such an outburst is likely due to a change in the state of the accretion disk, making this the longest period AM CVn binary to reveal an unstable accretion disk. The object is now back to its previously observed (by SDSS and PS-1) quiescent brightness that is likely set by the accreting white dwarf. Prior observations of this object also imply that the recurrence times for such outbursts are likely more than 12 years.
