New estimates of scale heights and spiral structures for non-edge-on spiral galaxies

作     者：Tao Hu Qiu-He Peng 

作者机构：Department of AutomationShanghai University Key Laboratory for the Structure and Evolution of Celestial ObjectsChinese Academy of SciencesYunnan Observatories Department of AstronomyNanjing University 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2014年第14卷第7期

页      面：869-874页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China 

主　　题：galaxy： disk    galaxies： fundamental parameters    galaxies： spiral   galaxies： structure 

摘      要：On the basis of Poisson＇s equation for the logarithmic perturbation of matter density, we provide improved estimates of scale heights and spiral structures for non-edge-on spiral galaxies by subtracting the surface brightness distributions from observed images. As examples, the non-edge-on spiral galaxies PGC 24996, which is face-on, and M31, which is inclined, are studied. The scale height, pitch angle and inclination angle of M31, our nearest neighbor, that are presented in this work, agree well with previous research.