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1968년 ~ 2025년까지 1,227 건의 한국천문학회지를 격월간 확인하실 수 있습니다.
- The Korean Astronomical Society (The Korean Astronomical Society)
- 계간 (Quarterly)
- ISSN : 1225-4614 (ISSN : 1225-4614)
1225-4614
- DB구축현황 : 1,227건 (DB Construction : 1,227 Articles)
총 게시글 1,227건
페이지 82/123
811
- HESSER J. E.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.111-118
- 1996
- 원문 바로보기
We review observational evidence bearing on the formation of a prototypical large spiral galaxy, the Milky Way. New ground- and space-based studies of globular star clusters and dwarf spheroidal galaxies provide a wealth of information to constrain theories of galaxy formation. It appears likely that the Milky Way formed by an combination of rapid, dissipative collapse and mergers, but the relative contributions of these two mechanisms remain controversial. New evidence, however, indicates that initial star and star cluster formation occurred simultaneously over a volume that presently extends to twice the distance of the Magellanic Clouds.
812
- WEE SUN-OK
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.145-146
- 1996
- 원문 바로보기
We have estimated a metal abundance of [Fe/H]= -0.04 <TEX>$\pm$</TEX> 0.05 dex, a reddening of E(B- V)= 0.28 mag, an age of 1.1 <TEX>$\pm$</TEX> 0.1 Gyr, and a distance of 2.5 <TEX>$\pm$</TEX> 0.2 kpc for NGC 1245 using the Washington filter system.
813
- MINN Y. K.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.189-191
- 1996
- 원문 바로보기
We have made observations of the dark cloud, B5 in the transitions of <TEX>$H_2CO$</TEX>, J = <TEX>$1_{10} {\leftarrow} 1_{11}$</TEX>, and <TEX>$2_{12} {\to} 1_{11}$</TEX>. We compared the <TEX>$H_2CO$</TEX> result with the observational results of CO and with the visual extinction. There exists an overall correspondence of molecules and extinction. However, a detailed agreement is lacking. We discussed the kinematics and the spatial relationship of molecules and extinction in this cloud.
814
- ISOBE SYUZO
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.365-366
- 1996
- 원문 바로보기
815
- LI XIAOMING
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.461-462
- 1996
- 원문 바로보기
816
- KIM KEE- TAE
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.177-178
- 1996
- 원문 바로보기
817
- LEE GEUNHO
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.103-104
- 1996
- 원문 바로보기
818
- YUN MIN S.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.159-160
- 1996
- 원문 바로보기
Recent high resolution CO observations of normal and starburst galaxies at Owens Valley Millimeter Array are summarized. While normal disk galaxies generally show exponential distribution which follows the optical blue light, starburst galaxies are often characterized by a compact (<TEX>$\~$</TEX>1 kpc) nuclear complex whose surface gas mass density is strongly correlated with the observed large infrared luminosity and thus the ongoing massive star formation.
819
- CHOE SEUNG-URN
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.445-449
- 1996
- 원문 바로보기
We introduce the National Science Curriculum issued by the Education Ministry in Korea. Astronomy should be given and taught as compulsory courses in Nature of elementary school, Science of middle school, General Science of high school, and as elective courses in Earth Science I, II. Astronomy concepts have been designed in sprial pattern. College levels of astronomy have been given as majoring in astronomy course, cultivating one for earth science pre-teacher students and cultural subjects for non-major students
820
- LEE HYUN-CHUL
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.133-134
- 1996
- 원문 바로보기
We present the systematic variations of H<TEX>$\beta$</TEX> index of simple stellar populations due to horizontal-branch (HB) stars. Most of the previous works have been done without careful considerations of HB stars. Since the Balmer line strengths are very sensitive to the temperature, including the HB stars are quite important. We found that the strength of H,6 index is strongly affected by HB stars, and hence the age estimation without careful consideration of the variation of HB morphology with metallicity and age would underestimate the ages of ellipticals.