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1968년 ~ 2024년까지 1,211 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 : 1,211건 (DB Construction : 1,211 Articles)
총 게시글 1,211건
페이지 81/122
801
- 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.
802
- ISOBE SYUZO
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.365-366
- 1996
- 원문 바로보기
803
- LI XIAOMING
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.461-462
- 1996
- 원문 바로보기
804
- SONG GUO-XUAN
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.165-166
- 1996
- 원문 바로보기
A bottom-up model for the formation of GMCs is described, where the observed GMCs are the aggregates of less massive clouds. The aggregates are getting more and more massive in the process of consecutive collision between clouds.
805
- KIM SUNGEUN
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.95-95
- 1996
- 원문 바로보기
We present the recent results of an HI aperture synthesis mosaic of the Large Magellanic Cloud(LMC), made by combining data from 1344 separate pointing centers using the Australia Telescope Compact Array(ATCA). The resolution of the mosaiced images is 1'.0 (15 pc, using a distance to the LMC of 50 kpc). In contrast with its appearance at other wavelengths, the LMC is remarkably symmetric in HI on the largest scales, with the bulk of the HI residing in a disk of diameter 7.3 kpc. Outer spiral structure is clearly seen, though the features appear due to differential rotation, therefore transient in nature. A good correlation is seen between the supershells previously identified in Halpha (e.g. Meaburn 1980) and HI structures.
806
- KIM YONGGI
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.247-248
- 1996
- 원문 바로보기
In order to study the X-ray radiations from solar type strong interacting binary stars, we have collected X-ray data of 44i Bootis (P=0.2678 days, SP=G2+G2) from the EXOSAT data archive. Preliminarly analysis of a part of these data has been already reported by Vilhu & Heise (1986). In this paper, however, we present a more complete light curve in LE region than the previous work, and some unpublished X-ray light curves and spectrums. Using these new materials a new attempt to find the physical explanation about. some observational characteristic figures in the X-ray light curves and spectrums has been made.
807
- CHOE G. S.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.303-305
- 1996
- 원문 바로보기
The evolution of solar magnetic arcades is investigated with the use of MHD simulations imposing resistivity on sheared magnetic fields. It is found that there is a critical amount of shear, over which magnetic reconnection can take place ill an arcade-like field geometry to create a magnetic island. The process leading to reconnect ion cannot. be solely attributed to a tearing instability, but rather to a reactive evolution of the magnetic arcade under resistivity. The natures of the arcade reconnection are governed by the spatial pattern of resistivity. A fast reconnection with a small shock angle can only be achieved when the diffusion region is localized. In this case. a highly collimated reconnect ion outflow can tear the plasmoid into a pair, and most of principal features in solar eruptive processes are reproduced.
808
- KRAICHEVA ZDRAVKA
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.227-228
- 1996
- 원문 바로보기
The long-term light curves of the novalikes TT Ari, KR Aur, AM Her and MV Lyr, were compiled and analysed for solar-like cyclical behaviour. The frequency analysis showed long-term cyclical modulations of the brightness of the stars, which can be ascribed to changes of the radii of the late type secondaries in order of <TEX>${\Delta}R/R{\simeq} 10^{-4}-10^{-5}$</TEX>.
809
- ITOH NOBUNARI
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.379-380
- 1996
- 원문 바로보기
We have constructed a near-infrared imaging camera which is attached to the prime focus of 105cm Schmidt telescope at Kiso Observatory. The camera is equipped with a 1040<TEX>$\times$</TEX>1040 PtSi CSD array developed by Mitsubishi Electric Co. The combination of Kiso Schmidt and the array gives a wide field of view of 18.4'<TEX>$\times$</TEX>18.4' with a reasonable spatial resolution of 1.06' /pixel. The system performances of the camera have been evaluated through laboratory and observational tests. Low noise, good cosmetics(no defect pixels), and good stability of the camera system show an excellent performance for astronomical use.
810
- TOMITA AKIHIKO
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.71-72
- 1996
- 원문 바로보기
We show that the star formation activity of spiral galaxies has a great variety. The star formation variation in a time scale of <TEX>$10^8$</TEX> yr and the mechanism responsible for the variation are discussed.