A TREATMENT FOR BACKGROUND CORRECTION ON THE HAMILTON ECHELLE SPECTROGRAPH

被引：11

作者：

CHURCHILL, CW

ALLEN, SL

机构：

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1995年 / 107卷 / 708期

关键词：

D O I：

10.1086/133536

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A method for background-illumination correction for the Hamilton Echelle Spectrograph is presented. The background is parametrized as (1) a global two-dimensional polynomial of scattered light, and (2) a local contamination of spectral features from adjacent orders modeled as a power law in the cross dispersion. The tatter component corrects the overlap of closely packed adjacent orders. The significance of the local component is verified by statistical tests and interorder inspection. A software tool useful with the Image Reduction Analysis Facility has been made publicly available.

引用

页码：193 / 198

页数：6

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