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강용희,Gang, Yong-Hui 한국과학기술단체총연합회 1997 과학과 기술 Vol.30 No.8
1965년 30명의 회원으로 창립한 한국천문학회는 현재 회원이 4백60명으로 늘어났으며 박사학위 소지자만 60여명이나 된다. 특히 작년엔 1AU아시아태평양지역회의를 열어 2백27편의 논문이 발표되었으며 매년 봄ㆍ가을 학술발표회를 개최하는 등 연구활동을 계속하고 있다.
최정산 위성추적소의 천체관측 환경에 관한 조사 연구: I. SEEING 및 야천광 관측과 위성추적소의 활용 방안
강용희,윤태석,박병곤,이기원,최영준,최은우,Kang, Yong-Hui,Yun, Tae-Seok,Park, Byeong-Gon,Lee, Gi-Won,Choi, Yeong-Jun,Choi, Eun-Woo 한국천문학회 1996 天文學論叢 Vol.11 No.1
We have investigated the astronomical observational environments at the Choejung-san GEODSS site which is located at the south of Taegu, Korea. As a part of the investigation, seeing and night sky brightness were measured outside nearby the GEODSS site using the Celestron 8-inch portable reflector with $192{\times}165$ pixels Lynxx CCD camera during the period of December 1994 to April 1996. The average seeing values of 4.8 arcsecond in B filter and 5.1 arcsecond in V filter were determined using the IRAF software. These values might be overestimated and would be reduced by at least 1 arc second in both filters if they were measured by more stable telescope system with solid mount and under a dome. We also compare the average seeing value at the GEODSS site with those at three other observatories, the Bohyunsan Optical Astronomy Observatory, the Sobaeksan Optical Astronomy Observatory, and the Seoul National University Observatory, for justification of the above guess. Unfortunately the night sky brightness measurement was not successful mainly due to the short exposure time. The utilizing plan of the GEOSS site is discussed based on the average seeing value, naked-eye sky brightness measurement, analysis of the existing thirty-year weather data and twenty-year urban planning of the metropolitan Taegu city for the year of 2016.
일반상대론적(一般相對論的) Polytrope(n=5)에 관(關)하여
강용희,현정준,Kang, Yong-Hee,Hyun, Jong-June 한국천문학회 1972 Journal of The Korean Astronomical Society Vol.5 No.1
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 ${\upsilon}\;and\;{\theta}$ 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 $\bar{\xi}$ 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 $\bar{\xi}$ is less than ${\sim}5.5$, the value of the density function ${\theta}$ drops more rapidly than the classical one, whereas when $\bar{\xi}$ is greater than ${\sim}5.5$, ${\theta}$ 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).