AN ALGORITHM FOR THE RELATIVE SCALING OF SPECTRA
AN ALGORITHM FOR THE RELATIVE SCALING OF SPECTRA
复制标题
DOI：
10.1086/133039
复制
发表时间：
1992-08
影响因子：
3.5
通讯作者：
Ernst van Groningen;I. Wanders
中科院分区：
文献类型：
--
作者：
Ernst van Groningen;I. Wanders
本文介绍了一种自动相对定标光谱的方法，其中存在一条或多条具有恒定通量的谱线。该算法考虑到光谱分辨率，通量因子和光谱位移的差异。它是为活动星系核变率研究中获得的一系列光谱的相对校准而开发的，但它也可用于其他目的，例如，用模板光谱减去活动星系核中的恒星连续体。实验表明，该方法具有很高的精度，优于肉眼定标或测量窄线通量的方法，具有上级的优点。
A method is described for the automatic relative scaling of spectra in which one or more lines with constant flux are present. The algorithm takes into account differences in spectral resolution, flux factors and spectral shifts. It was developed for the relative calibration of series of optical spectra obtained in variability studies of active galactic nuclei, but it also can be used for other purposes, e.g., the subtraction of an underlying stellar continuum in AGN with a template spectrum. Tests show that a high degree of accuracy is obtained, and that the method is superior to scaling the spectra by eye or measuring the narrow line fluxes.