星系分类

基于小波特征的星系光谱分类

Spectral Classification of Galaxy Based on Wavelet Feature

提出了一种新的星系光谱分类方法，将星系光谱分为正常星系和活动星系。

An algorithm for classification of galaxy spectra is proposed , which divides the galaxy spectra into normal galaxy and active galaxy spectra .

这样，一些较侧向的Sc星系就会被错分类到早型星系中。结果还直接表明：如果星系分类只是在图像上进行，则各类星系的光度函数就会出现偏差。

Our result also implies that there might exist biases in the luminosity functions of individual Hubble types if spiral galaxies are only classified visually .

本文首先对恒星、星团和星系的特征、分类及星团内的恒星分布情况进行简单的描述。

In this paper , the properties and classifications of the stars , clusters and galaxies are described , and the distributions of stellar mass in clusters are discussed firstly .

星系园计划是一项带动公众一起参与星系分类的计划，这些星系一部分由斯隆数码天空研究计划获取，最新的照片来自哈勃深空图像。

Galaxy Zoo enlists the public to help classify galaxies found in the Sloan Digital Sky Survey , and more recently in deep Hubble imagery .

回顾了星系红外光谱能量分布的观测和理论方面研究，及星系光学光谱分类方法和历史。

We also review the observational and theoretical results of galactic spectral energy distribution ( SED ) and the corresponding optical spectral classification .