Data Reduction with the MIKE Spectrometer

TL;DR

This paper details the design, calibration procedures, and data-reduction pipeline for the MIKE spectrometer, including novel techniques, enabling effective data processing and understanding of instrument systematics.

Contribution

It introduces a comprehensive IDL-based data-reduction pipeline for MIKE and similar echelle spectrometers, with novel calibration techniques and detailed observational procedures.

Findings

Effective flat-fielding and wavelength calibration methods

Pipeline applicable to other echelle spectrometers

Assessment of instrument systematics and data quality

Abstract

This manuscript describes the design, usage, and data-reduction pipeline developed for the Magellan Inamori Kyocera Echelle (MIKE) spectrometer used with the Magellan telescope at the Las Campanas Observatory. We summarize the basic characteristics of the instrument and discuss observational procedures recommended for calibrating the standard data products. We detail the design and implementation of an IDL based data-reduction pipeline for MIKE data (since generalized to other echelle spectrometers, e.g. Keck/HIRES, VLT/UVES). This includes novel techniques for flat-fielding, wavelength calibration, and the extraction of echelle spectroscopy. Sufficient detail is provided in this manuscript to enable inexperienced observers to understand the strengths and weaknesses of the instrument and software package and an assessment of the related systematics.