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Paper: The Problems with Vega
Volume: 364, The Future of Photometric, Spectrophotometric, and Polarimetric Standardization
Page: 305
Authors: Gray, R.O.
Abstract: The problems associated with maintaining Vega as the primary spectrophotometric standard are reviewed. These difficulties include the possible photometric variability of Vega, its status as a rapid rotator seen pole-on, which complicates the use of models to extend the optical calibration into the infrared and ultraviolet, and the presence of significant infrared excesses from the K-band longward due to Vega's debris disk. These problems are significant enough that the astronomical community should consider finding another fundamental calibrator.
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