3 860 8555 2 39 1 e-mail: keitaro@sci.kumamoto-u.ac.jp 1 3 1958 1 195710 1957 7 * 1 12 Fred Lawrence Whipple * 1 1957 7 1 1958 12 31 356 2015 6
2 1958 10 2 2 60 60020 20 10 1 10 2, 3 2, 3 5 6 108 6 357
1 AJ AJ Dirk Brouwer Paul Herget 4 J3J5 6 7 AJ 1959 9 Boris Garfinkel 1 358 2015 6
30 1959 NASA 20 Charles Whitney 2 21959 NASA NASA 20 2 1012 Ph.D. Ph.D. astronomer NASA NASA NASA 108 6 359
TMT 90 60 Giuseppe Colombo Bepi 1 * 2 Imre Gyula Izsak 1956 6,000 * 2 JAXA ESA 2016 360 2015 6
William Kaula Ohio State NASA UCLA UCLA Ph.D. 6,000 6,000 John P. Vinti 2 3 23 xyz z 2 J2J4 2 3 1 108 6 361
high eccentricity high inclination 3 AJ 1 60 1947 4 1 NASA NASA 1 Sverre Johannes Aarseth Mauri Valtonen lunar theory ei 1 362 2015 6
ei 1 2 Mathematica 2 2,000 2,000 e i 3,040* 3 108 6 363
e i IAU 1962 * 3 2 * 4 JPL James Gerard Williams 1 3,040 * 4 364 2015 6
* 5 z 1 Brian Geoffrey Marsden 100 50 5 * 5 James 2,335 12014 8 2 1 1 100 ApJS citation history 108 6 365
2 5 citation history SAO/NASA Astrophysics Data System 2 90 ADS 750 3 Scott Tremaine 80 1 366 2015 6
1 1 Garfinkel B., 1959, Astron. J. 64, 353; Kozai Y., 1959, Astron. J. 64, 367; Brouwer D., 1959, Astron. J. 64, 378 2 Kozai Y., Whitney C., 1959, SAO Special Report 30, 1 3 Kozai Y., 1962, Astron. J. 67, 591 4 Brouwer D., 1947, Astron. J. 52, 190 5 2000 93, 451. A Long Interview with Prof. Yoshihide Kozai 3 Keitaro Takahashi Graduate School of Science and Technology, Kumamoto University, 2 39 1 Kurokami, Kumamoto 860 8555, Japan Abstract: Prof. Kozai entered the department of astronomy in the University of Tokyo several years after the second World War. He chose celestial mechanics as his major and received guidance from Prof. Yusuke Hagihara. This is the third article of a long interview with Prof. Kozai and this time he talked on his stay in the USA and the Kozai mechanism. 108 6 367
1. 3 π/23π/2 1 2. 3 3 m 0 rm r r r x a, e, i, Ω, ω x y 2 d r r R = Gm + 2 3 dt r r G R 1 rr R = Gm r 3 r r 12 Gm H = R(,) r t 2a H R 2 R r/r2 e i e i R R R z 2 l = Gma(1 e ) cos i z 3 368 2015 6
4 3. Gm H = R 2 a R Rl z R* l z * 2 2 2 2 R* = (2 + 3 e )(3 cos i 1) + 15e cos 2ω sin i 2 l = 1 e cos i *z R* l z *i ω e l z * ω e R* ω e 4 m 1.0 m 0.001, a 5, e 0 a 0 2.5, e 0 0.3, i 0 1.0, Ω 0 0, ω 0 1.0 ω π/2 a, e, i 4 z e i ω e 4 02π ω i 0 0.68 39 e e 108 6 369
4. 3r/r 2 z 3 1 Kozai Y., 1962, Astron. J. 67, 591 2 Kokubo E., 2003, Over the Resonance (Proceedings of the 35th Symposium on Celestial Mechanics), 52 370 2015 6