Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.4607s&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #46.07; Bulletin of the American Astronomical Society, Vol. 32, p.1478
Astronomy and Astrophysics
Astronomy
Scientific paper
Analysis of variable stars in nearby galaxies and globular clusters is an effective technique for gaining insight into the creation, evolution, and population of such structures. However, current standards in detection software are unable to properly resolve faint variables in dense fields. The globular clusters in the Fornax Galaxy are examples of such fields. Using the new technique of ``Image Difference Analysis," we have attained reasonable estimates of the relative abundances and fluctuations in several variable stars, opening the possibility for an improved catalog of variables, particularly in and near these clusters. We compare the accuracy of this method with that of DoPHOT, both in detection of variables and in extracting light curves. Example curves for several variables in all regions of Fornax are provided. This project was funded by the National Science Foundation's Research Experience for Undergraduates Program.
Bersier David
Sherman David
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