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Statistical error analysis in CCD time-resolved photometry with applications to variable stars and quasarsDifferential 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.
Document ID
19880036076
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Howell, Steve B.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Warnock, Archibald, III
(NASA Goddard Space Flight Center; ST Systems Corp. Greenbelt, MD, United States)
Mitchell, Kenneth J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Astronomical Journal
Volume: 95
ISSN: 0004-6256
Subject Category
Astronomy
Accession Number
88A23303
Distribution Limits
Public
Copyright
Other

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