Variable Stars and Non-standard Photometric Data

Details Variable Stars and Non-standard Photometric Data Variable Stars and Non-standard Photometric Data

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..364..603s&link_type=abstract

The Future of Photometric, Spectrophotometric and Polarimetric Standardization, ASP Conference Series, Vol. 364, Proceedings of

Astronomy and Astrophysics

Astronomy

Scientific paper

We discuss the effects of using unfiltered and non-standard photometric data for studying different types of variable stars, and conclude that filterless photometry is of very limited value in most cases. Standardization is not a trivial task, and invalid transformations result in spurious variability of the object. Such errors can hardly be discovered. An improperly selected comparison star may add additional variability due to the mistreatment of atmospheric extinction. When solving eclipsing-binary lightcurves, poorly calibrated data (or data not standardized at all) lead to erroneous results.

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