Data Pipelines for the TRES Echelle Spectrograph

Douglas J. Mink
Smithsonian Astrophysical Observatory, Cambridge, MA 02138
The Tillinghast Reflector Echelle Spectrograph (TRES) is a two-fiber (object and sky spectra) optical echelle spectrograph on the 1.5-meter Tillinghast telescope at the Smithsonian Astrophysical Observatory's Fred L. Whipple Observatory on Mt. Hopkins in Arizona. An IRAF-based processing pipeline has been written to reduce spectra keeping the maximum wavelength precision, which varies from 0.03 to 0.07 Angstroms/pixel over 51 orders covering a range of 3850 to 9100 Angstroms. A major design goal was to use the same software at the telescope for quick-look real-time processing and, with relatively few parameter changes, reduction with more accuracy for scientific processing. A modular system was written in IRAF for portability and simplicity, so that scientists can re-reduce their data in various ways to optimize its quality for their needs. IRAF tasks developed for the SAO FAST long-slit and Hectospec multi-fiber spectrographs, as well as NOAO-developed echelle tasks, were adapted for this instrument.

Presented at the Twentieth Annual Conference on Astronomical Data Analysis Sofware and Systems (ADASS XX) in Boston, Massachusetts, November 7-11, 2010

Use this Reference:
Mink, D. J., 2011, in Astronomical Data Analysis Software and Systems XX, ASP Conference Series, Vol. 442, Edited by I. Evans, A. Accomazzi, D. Mink, and A. Rots, San Francisco: Astronomical Society of the Pacific, p. 307.

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