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A Method of Obtaining the Pitch Angle of Spiral Arms and the Inclination of Galactic Discs
Ma Jun
2001
Source PublicationChinese Journal of Astronomy and Astrophysics
ISSN1009-9271
Volume1Issue:5Pages:395
AbstractWe investigate the mathematical form, the symmetry of spiral structure and the projected images of galactic discs. The measured pitch angles of spiral arms and inclination angles of galactic discs for 60 spiral galaxies are presented. The global spiral structure is emphasized in the study. It is found that, except for small-scale distortions, the spiral arms of those galaxies that were classified as AC 12 in the arm classification system of Elmegreen & Elmegreen, can be represented by the logarithmic spiral form.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/52689
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ma Jun. A Method of Obtaining the Pitch Angle of Spiral Arms and the Inclination of Galactic Discs[J]. Chinese Journal of Astronomy and Astrophysics,2001,1(5):395.
APA Ma Jun.(2001).A Method of Obtaining the Pitch Angle of Spiral Arms and the Inclination of Galactic Discs.Chinese Journal of Astronomy and Astrophysics,1(5),395.
MLA Ma Jun."A Method of Obtaining the Pitch Angle of Spiral Arms and the Inclination of Galactic Discs".Chinese Journal of Astronomy and Astrophysics 1.5(2001):395.
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