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The Recalibration of the UVES-POP Stellar Spectral Libraryстатья
- Авторы: Borisov Svyatoslav, Chilingarian Igor V., Rubtsov Eugene, Ledoux Cédric, Melo Claudio, Grishin Kirill
- Сборник: Astronomical Data Analysis Software and Systems XXVII
- Серия: Astronomical Society of the Pacific Conference Series
- Том: 522
- Год издания: 2020
- Место издания: Astronomical Society of the Pacific San Francisco, United States
- Первая страница: 591
- Аннотация: We have re-reduced all spectra from the UVES-POP stellar spectral library using the version 5.5.7 of the UVES pipeline and an algorithm we designed, which allows us to remove ripples in regions where echelle orders are stitched. These ripples are caused by the offset of a flat field with respect to a science frame and under- or oversubtraction of scattered light. We have also developed an approach to merge 6 UVES spectral chunks divided by gaps in the spectral coverage by using synthetic stellar atmospheres to predict the flux difference between the segments. At the end, we improved the flux calibration quality to 2% or better for 85% of 430 spectra in the library.
- Добавил в систему: Чилингарян Игорь Владимирович