Comprehensive data reduction package for the Immersion GRating INfrared Spectrograph: IGRINS

You are here: Homepage > Search

Comprehensive data reduction package for the Immersion GRating INfrared Spectrograph: IGRINS

Sim, Chae Kyung / Le, Huynh Anh Nguyen / Pak, Soojong / Lee, Hye-In / Kang, Wonseok / Chun, Moo-Young / Jeong, Ueejeong / Yuk, In-Soo / Kim, Kang-Min / Park, Chan / ... [more]

Abstract

Abstract We present a Python-based data reduction pipeline package (PLP) for the Immersion GRating INfrared Spectrograph (IGRINS), an instrument that covers the complete H- and K-bands in one exposure with a spectral resolving power of 40,000. The reduction steps carried out by the PLP include flat-fielding, background removal, order extraction, distortion correction, wavelength calibration, and telluric correction using spectra of A type standard stars. As the spectrograph has no moving parts, the PLP automatically reduces the data using predefined functions for the processes of order extraction, distortion correction, and wavelength calibration. Before the telluric correction of the target spectra, the intrinsic hydrogen absorption features of the standard A star are removed with a Gaussian fitting algorithm. The final result is the flux of the target as a function of wavelength. Users can customize the predefined functions for the extraction of the spectrum from the echellogram and adjust the parameters for the fitting functions for the spectra of celestial objects, using “fine-tuning” options, as necessary. Presently, the PLP produces the best results for point-source targets.

Access

Check access

Check availability in my library

Order at Subito €

Export, share and cite

Document information

Title :

Comprehensive data reduction package for the Immersion GRating INfrared Spectrograph: IGRINS

Contributors:

Sim, Chae Kyung (author) / Le, Huynh Anh Nguyen (author) / Pak, Soojong (author) / Lee, Hye-In (author) / Kang, Wonseok (author) / Chun, Moo-Young (author) / Jeong, Ueejeong (author) / Yuk, In-Soo (author) / Kim, Kang-Min (author) / Park, Chan (author)

Published in:

Advances in Space Research ; 53 , 11 ; 1647-1656

Publication date :

2014-02-28

Size :

10 pages

ISSN :

0273-1177

DOI :

https://doi.org/10.1016/j.asr.2014.02.024

Type of media :

Article (Journal)