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A new method for robust high-precision time-series photometry from well-sampled images: Application to archival MMT/megacam observations of the open cluster M37

Chang, Seo-Won; Byun, Yongik; Hartman, J D

Description

We introduce new methods for robust high-precision photometry from well-sampled images of a non-crowded field with a strongly varying point-spread function. For this work, we used archival imaging data of the open cluster M37 taken by MMT 6.5 m telescope. We find that the archival light curves from the original image subtraction procedure exhibit many unusual outliers, and more than 20% of data get rejected by the simple filtering algorithm adopted by early analysis. In order to achieve better...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
URI: http://hdl.handle.net/1885/152019
Source: Astronomical Journal
DOI: 10.1088/0004-6256/149/4/135
Access Rights: Open Access

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