ynogkm: A new public code for calculating time-like geodesics in the Kerr-Newman spacetime

	ynogkm: A new public code for calculating time-like geodesics in the Kerr-Newman spacetime
	Yang XL(杨晓林)1,2,3 ; Wang JC(王建成)2,3
刊名	ASTRONOMY & ASTROPHYSICS
	2014-01
卷号	561
关键词	accretion, accretion disks black hole physics relativistic processes methods: numerical
ISSN号	0004-6361
通讯作者	Yang, XL (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	In this paper, we present a new public code, named ynogkm (Yun-Nan observatories geodesic in a Kerr-Newman spacetime for massive particles), for the fast calculation of time-like geodesics in the Kerr-Newman (K-N) spacetime, which is a direct extension of ynogk (Yun-Nan observatories geodesic Kerr) calculating null geodesics in a Kerr spacetime. Following the strategies used in ynogk, we also solve the equations of motion analytically and semi-analytically by using Weierstrass' and Jacobi's elliptic functions and integrals in which the Boyer-Lidquist (B-L) coordinates r, theta, phi, t and the proper time sigma are expressed as functions of an independent variable p (Mino time). All of the elliptic integrals are computed by Carlson's elliptic integral method, which guarantees the fast speed of the code. Finally, the code is applied to a couple of toy problems.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	THIN ACCRETION DISK ; ELLIPTIC INTEGRALS ; BLACK-HOLE ; TABLE ; SPECTRUM ; MODEL
收录类别	SCI ; EI
原文出处	http://www.aanda.org/articles/aa/abs/2014/01/aa22565-13/aa22565-13.html
语种	英语
WOS记录号	WOS:000330584000127
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5041]
专题	云南天文台_高能天体物理研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, PR China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, PR China 3.University of Chinese Academy of Sciences, 100049 Beijing, PR China
推荐引用方式 GB/T 7714	Yang XL,Wang JC. ynogkm: A new public code for calculating time-like geodesics in the Kerr-Newman spacetime[J]. ASTRONOMY & ASTROPHYSICS,2014,561.
APA	Yang XL,&Wang JC.(2014).ynogkm: A new public code for calculating time-like geodesics in the Kerr-Newman spacetime.ASTRONOMY & ASTROPHYSICS,561.
MLA	Yang XL,et al."ynogkm: A new public code for calculating time-like geodesics in the Kerr-Newman spacetime".ASTRONOMY & ASTROPHYSICS 561(2014).