Statistical error analysis in CCD time-resolved photometry with applications to variable stars and quasars
Statistical error analysis in CCD time-resolved photometry with applications to variable stars and quasars
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DOI：
10.1086/114634
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
S. Howell;A. Warnock;K. Mitchell
中科院分区：
文献类型：
--
作者：
S. Howell;A. Warnock;K. Mitchell
利用一种新开发的方差分析技术，对从CCD帧中获得的差分光度时间序列进行了内在变异性测试。一般来说，用于差分光度测定的物体并不都是相同的量级，因此这里推导的技术明确地纠正了由于光子统计而测量的方差的差异。还考虑了其他随机噪声项。该技术测试的是内在变异性的存在，而不考虑其随机性或周期性。然后将其应用于对变星ZZ Ceti和US 943以及活跃的星系外天体OQ 530、US 211、US 844、LB 9743和OJ 287的观测。25日引用。
Differential photometric time series obtained from CCD frames are tested for intrinsic variability using a newly developed analysis of variance technique. In general, the objects used for differential photometry will not all be of equal magnitude, so the techniques derived here explicitly correct for differences in the measured variances due to photon statistics. Other random-noise terms are also considered. The technique tests for the presence of intrinsic variability without regard to its random or periodic nature. It is then applied to observations of the variable stars ZZ Ceti and US 943 and the active extragalactic objects OQ 530, US 211, US 844, LB 9743, and OJ 287. 25 references.