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Paper: Spectroscopic Study of the Low Mass Benchmark Eclipsing Binary UV Piscium
Volume: 496, Living Together: Planets, Host Stars and Binaries
Page: 174
Authors: Feiden, G. A.; Stempels, E.; Hebb, L.; Mack III, C. E.; Chaboyer, B.
Abstract: We report on the progress of a program to rigorously characterize the low-mass benchmark eclipsing binary UV Piscium. Although the system has been extensively characterized previously, there is significant disagreement in the literature concerning the masses of the two stars. This disagreement presents difficulty when carrying out comparisons with stellar evolution models. In addition, no metallicity estimate exists for the system, allowing models greater flexibility in the aforementioned comparisons. To combat these issues, we have obtained high resolution, high signal-to-noise ratio optical spectra using the SALT HRS and the CTIO CHIRON spectrograph. Here, we present preliminary estimates of the masses, measured from a subset of the SALT spectra and the complete set of CTIO data, the impact those masses would have on testing the accuracy of stellar evolution models, and we provide an outline of the future direction of the program.
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