[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5140/JASS.2010.27.4.309

Integral Field Spectroscopic Data Reduction Method for High Resolution Infrared Observation

Lee, Sung-Ho (Korea Astronomy and Space Science Institute)
Pak, Soo-Jong (School of Space Research, Kyung Hee Univeristy)
Choi, Min-Ho (Korea Astronomy and Space Science Institute)

Publication Information

Journal of Astronomy and Space Sciences / v.27, no.4, 2010 , pp. 309-318 More about this Journal

Abstract

We introduce a technical approach for reducing three-dimensional infrared (IR) spectroscopic data generated by integral field spectroscopy or slit-scanning observations. The first part of data reduction using IRAF presents a guideline for processing spectral images from long-slit IR spectroscopy. Multichannel image reconstruction, Image Analysis and Display (MIRIAD) is used in the later part to construct and analyze the data cubes which contain spatial and kinematic information of the objects. This technic has been applied to a sample data set of diffuse 2.1218 ${\mu}m$ $H_2$ 1-0 S(1) emission features observed by slit-scanning around Sgr A East in the Galactic center. Details of image processing for the high-dispersion infrared data are described to suggest a sequence of contamination cleaning and distortion correction. Practical solutions for handling data cubes are presented for survey observations with various configurations of slit positioning.

Keywords

image processing techniques; spectroscopic;

Citations & Related Records

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