Reduction of Hamilton echelle data at Lick Observatory

Details Reduction of Hamilton echelle data at Lick Observatory Reduction of Hamilton echelle data at Lick Observatory

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100.1572g&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Dec. 1988, p. 1572-1581. Research supported by NSE

Astronomy and Astrophysics

Astronomy

27

Astronomical Observatories, Astronomical Spectroscopy, Data Reduction, Echelle Gratings, Calibrating, Charge Coupled Devices, Image Processing, Radiant Flux Density, Seyfert Galaxies

Scientific paper

The reduction package used to reduce CCD-echelle data from the Hamilton spectrograph at Lick Observatory is described. The input data required for the reduction package are addressed, and the steps taken to prepare for reducing an observations are discussed. How the echelle orders are located and how the spectra are extracted from the echelle image are described, and the corrections for interference fringes which become significant at red wavelengths are examined. The wavelength calibration is addressed, and flux calibration and merging of individual orders are covered. Examples of data reduced using these procedures are presented.

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