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1984년 ~ 2025년까지 1,255 건의 한국우주과학회지를 계간으로 확인하실 수 있습니다.
- The Korean Space Science Society (The Korean Astronomical Society)
- 계간 (Quarterly)
- ISSN : 1225-052x (ISSN : 1225-052x)
1225-052x
- DB구축현황 : 1,255건 (DB Construction : 1,255 Articles)
총 게시글 1,255건
페이지 118/126
1171
- 김미경
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 9, n.2
- pp.165-170
- 1992
- 원문 바로보기
<TEX>$\zeta$</TEX> Aur형의 쌍성계인 32 Cyg 에 대해 복사 전달 방정식을 수치적분하여 이론적인 선 윤곽을 구하였다. 원천함수를 구하기 위해 2 준위 원자와 완전 재분배를 가정 하고 Sobolev 근사를 이용하였다. 선 윤곽을 궤도위상에 따라 구한 결과, 공전궤도 위상 0.99에서는 선 윤곽이 적색편이를 보였으며, 공전궤도 위상 0.70에서는 파장이 짧은 쪽으로 약간 치우쳤다. 또한 궤도면 기울기에 따른 효과를 보기 위해 같은 위상에서 각기 다른 기울기를 주고 계산하였는데, 기울기가 작은 경우에 빛의 세기가 증가하였다.
1172
- Kang, Young-Woon
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 9, n.1
- pp.111-119
- 1992
- 원문 바로보기
The IUE archival spectra of VV Cephei were collected to investigate the eclipse nature in the ultraviolet. The temperature of the B star has been determined, as approximately 30000K, based on the flux distributions during egress. Light curves of VV Cephei were reduced from the spectrophotometry of the IUE archival spectra. Three light curves at the center wavelengths of 2350 <TEX>${\AA}$</TEX>, 2550 <TEX>${\AA}$</TEX> and 2850 <TEX>${\AA}$</TEX> have been analyzed by the modified Wilson and Devinney light curve program. The radii of the B star and M star were deduced to 0.05 and 0.22 of unit separation, respectively. The UV light curves show an evidence that the light was attenuated by the highly opaque atmosphere of the M star.
1173
- 김천휘
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 9, n.1
- pp.41-51
- 1992
- 원문 바로보기
근접쌍성 AO Can과 AW Cam을 1984년의 관측 계절에 소백산 천문대의 61cm 반사 망원경으로 광전 관측하였다. 이 두별의 관측으로 부터 AO Cam의 채 1 극심시각 l개와 AW Cam익 체 1 극심시각 3 개를 각각 구하였다. 여러 문헌으로 부터 수집한 이 두 별의 극심시각들을 이용하여 최소자송법으로 A0 Cam파 AW Cam의 새로운 광도요소를 구하였다. AO Cam의 공전주기는 1980년 10월(JD 2444520) 부터 1985년 2월 (JD 2446107)까지 일정하였다. 그러나 최근에 Mullis와 Faulkner (1991)가 발표한 AO Cam의 l개의 제2극심시각 (JD 2447864. 7879)은 우리가 새로 구한 광도요소와 약 +4.6분 ( (0.0032일)의 큰 차이가 난다. AO Carn의 극심시각의 앞으로의 관측은 이 별의 공전주기 변화 연구에 중요하다. AW Cam의 공전주기는 지난 1930년대 초 이래 현재짜지 약 60년 동안 P=<TEX>$0^d.77134645$</TEX>로 일정하다
1174
- Kim, Jhoon
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 9, n.2
- pp.193-202
- 1992
- 원문 바로보기
The fist sounding rocket in Korea, KSR-420S has been under the development at Korea Aerospace Research Institute (KARI), and is expected to be launched in 1993 to measure the vertical ozone profile over the Korean Peninsula. The KSR-420S is expected to provide the fist in situ measurement of ozone concentrations over the Korean Peninsula. An optical ozone detector has been developed at Korea Research Institute of Standards and Science (KRISS), and its calibration has been completed recently. In this paper, measurement principles of the ozone detector in KSR-420S, its calibration data, ozone measurement procedure and data reduction algorithm are presented with sample calculations.
1175
- Nha, Il-Seong
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 8, n.2
- pp.149-158
- 1991
- 원문 바로보기
Sixteen unitary Light curves of AR Lac in B and V are made at Yonsei University Observatory in the period of 1980-1988. Some overview findings of light variations are made. (1) The light variation outside eclipse follow none of the wave migration patterns reported by previous investigators. (2) Complicated shapes outside eclipse are apparently much reduced in the light curves of 1983-1984. This suggests than, in the future, AR Lac has a chance to attain a normal state with no complicated interactions. (3) The depths of the primary and the secondary mid-eclipses are changing year-to-year. (4) The K0 star, the larger component, has brightened by <TEX>$0.^m$</TEX> 14 in V, while the G2 star has shown a fluctuation of about <TEX>$0.^m$</TEX>05 in V. (5) The B-V values at primary mid-eclipse have no correlation with the depth variations. (6) Independently of the increase of maximum brightness, the B-V colors in the non-eclipsed phases changed slightly over the years.
1176
- 정장해
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 8, n.2
- pp.133-140
- 1991
- 원문 바로보기
초 장주기 식쌍성 31 Cyg의 UBV 광도곡선을 연세대학교 천문대 일산관측소에서 관측하여 1988년부터 1991년까지 3년 동안의 UBV 광도곡선과 1년간의 RI광도곡선을 완성하였다. 우리의 관측값과 문헌에서 수집한 관측값을 가지고 31 Cyg의 새로운 UBV 광도곡선을 완성하였다. 이 광도곡선으로 부터 Wilson-Devmney 계산법으로 계략적인 측광학적 해를 구하였다.
1177
- Song, Hye-Kyeong
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 8, n.1
- pp.25-51
- 1991
- 원문 바로보기
The spectra of 31 Cygni were taken at the Asiage Observatory in Italy. Reduction was made using the 2nd and 4th order non-linear least square method. Spectral lines which were relatively sharp or strong were identified within the wavelength regions from 3800 to 5100<TEX>$AA$</TEX>. Radial velocities and equivalent widths were calculated from the Gaussian Fitting Method for this star. The measured mean radial velocity of 31 Cygni is + 0.5km/sec.
1178
- 박종현
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 8, n.1
- pp.115-123
- 1991
- 원문 바로보기
Automatching algorithm is suitable for cross-correlation, which showed correlation surface about maximal correlation coefficient. The size of the window area must be determined empirically, whereas window size generally chosen as a compromise between speed and accuracy. It is possible that epipolar transform prevented from mismatching and decreased search space. In application of the astronomical fields, automatching algorithm mainly used to planet surface recovery in satellite image.
1179
- Suh, Kyung-Won
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 8, n.1
- pp.1-10
- 1991
- 원문 바로보기
The dust formation processes in novae are investigated with close attention to recent infrared observations. Using mainly the classical nucleation theory, we have calculated the time scales of dust formation and growth in the environments of novas. Those time scales roughly the typical observations. We have classified the dust-forming novae into three classes according to their explosion properties and the thermodynamic properties of dust grains. Oxygen grains form much later than carbon grains because of their thermodynamic properties. The effect of grain formation to the efficiency of stellar winds to drive the material outward is tested with newly obtained Planck mean values of dust grains.
1180
- Nha, Il-Seong
- 韓國宇宙科學會誌 = Journal of astronomy & space sciences
- 8, n.2
- pp.125-131
- 1991
- 원문 바로보기
UBV observations at Yonsei University Observatory (500 and 537 observations each at Ilsan Station and at Campus Station) were made for the latest eclipse of <TEX>$\zeta$</TEX> Aur in 1987-1988. Orbital period of Saijo and Saito has been confirmed and the light and color variations on the night JD 244730 are found.