- 일반상대론적(一般相對論的) Polytrope(n=5)에 관(關)하여
- ㆍ 저자명
- 강용희,현정준,Kang. Yong-Hee,Hyun. Jong-June
- ㆍ 간행물명
- 天文學會誌
- ㆍ 권/호정보
- 1972년|5권 1호|pp.7-14 (8 pages)
- ㆍ 발행정보
- 한국천문학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
We have investigated the structure of the general relativistic polytrope(G.R.P.) of n=5. The numerical solutions of the general relativistic Lane-Emden functions ${upsilon};and;{ heta}$ for the ratio of the central pressure to the central density ${sigma}=0.1$, 0.3, 0.5 and 0.8333 are plotted graphically. We may summarize the results as follows: 1. As the invariant radius $ar{xi}$ increases, the numerical value of the mass parameter ${upsilon}$ does not approach toward the assymptotic limit, as it does in the classical case $({upsilon}{sim}{sqrt{3}})$, but it increases continuously with progressively smaller rate as compared with the classical case. 2. When $ar{xi}$ is less than ${sim}5.5$, the value of the density function ${ heta}$ drops more rapidly than the classical one, whereas when $ar{xi}$ is greater than ${sim}5.5$, ${ heta}$ becomes greater than the classical value. For the greater values of ${sigma}$ these phenomena become significant. 3. From the above results it is expected that the equilibrium mass of the G.R.P. of n=5 must be larger than the classical masse $({sqrt{3}})$ and the mass is more dispersed than the classical configuration (i.e. equilibrium with infinite radius).