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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 88/122
871
- ISOBE SYUZO
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.451-453
- 1996
- 원문 바로보기
There is a question, 'Which is beautiful, a flower or a star?'. Its answer is different from one person .to another. It is only a matter of what one is interested in. It is very difficult for most school pupils, who will have non-scientific jobs, to understand science courses taught currently in school, because each science (physics, chemistry, biology, and earth science) is independently taught from the other sciences. Therefore, their knowledge of sciences obtained during their school period does not significantly help their understanding of global environmental problems. I am proposing that several scientific stories should be prepared to connect all the related scientific phenomena in order to give those pupils ideas in understanding global environmental problems. I believe that astronomy is able to play an important role in this context.
872
- LEE MYUNG GYOON
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.67-68
- 1996
- 원문 바로보기
873
- CHAKRABARTI SANDIP K.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.229-230
- 1996
- 원문 바로보기
874
- AGRAWAL P. C.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.429-432
- 1996
- 원문 바로보기
An x-ray astronomy experiment consisting of three collimated proportional counters and an X-ray Sky Monitor (XSM) was flown aboard the Indian Satellite IRS-P3 launched on March 21, 1996 from SHAR range in India. The Satellite is in a circular orbit of 830 km altitude with an orbital inclination of <TEX>$98^{\circ}$</TEX> and has three axis stabilized pointing capability. Each pointed-mode Proportional Counter (PPC) is a multilayer, multianode unit filled with P-10 gas (<TEX>$90\%$</TEX> Ar + <TEX>$10\%\;CH_4$</TEX>) at 800 torr and having an aluminized mylar window of 25 micron thickness. The three PPCs are identical and have a field of view of <TEX>$2^{\circ}{\times}2^{\circ}$</TEX> defined by silver coated aluminium honeycomb collimators. The total effective area of the three PPCs is about 1200 <TEX>$cm^2$</TEX>. The PPCs are sensitive in 2-20 keV band. The XSM consists of a pin-hole of 1 <TEX>$cm^2$</TEX> area placed 16 cm above the anode plane of a 32 cm<TEX>$\times$</TEX>32 cm position sensitive proportional counter sensitive in 3-8 keV interval. The position of the x-ray events is determined by charge division technique using nichrome wires as anodes. The principal objective of this experiment is to carry out timing studies of x-ray pulsars, x-ray binaries and other rapidly varying x-ray sources. The XSM will be used to detect transient x-ray sources and monitor intensity of bright x-ray binaries. Observations of black-hole binary Cyg X-1 and few other binary sources were carried out in early May and July-August 1996 period. Details of the x-ray detector characteristics are presented and preliminary results from the observations are discussed.
875
- MOULD JEREMY
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.7-10
- 1996
- 원문 바로보기
With an interim calibration based upon half the Key Project's galaxies, the Tully-Fisher relation, the (Dn, <TEX>$\sigma$</TEX>) relation and type II supernovae yield <TEX>$H_0$</TEX>= 73<TEX>$\pm$</TEX>10 km/sec/Mpc.
876
- JEONG K. S.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.181-182
- 1996
- 원문 바로보기
877
- GRIGORYEV V. M.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.233-234
- 1996
- 원문 바로보기
For obtaining estimates of a total magnetic flux, we propose to use measurements of <TEX>${\partial}I/{\partial}{\lambda}$</TEX>. obtained by a modulation method which is formally identical to Stokes V-parameter measurements. In this case the polarization is not analyzed. It is advisable to use in measurements two parts of the spectral line wing.
878
- YIM Jo RYEONG
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.241-242
- 1996
- 원문 바로보기
The UBV observations of the close binary system CW Cephei were made from August 198:3 to December 1984 during 25 nights using the 61cm Boller and Chivens reflector at the Sobaeksan Astronomy Observatory. The new UBV light curves were analyzed with the recent Wilson-Devinney binary model. Our photometric solution for CW Cep were well consistent with those of Clausen &. Gimenez (1991). Using our photometric solution and Popper & Hill (1991) spectroscopic one, each absolute masses and radii of components for CW Cep were derived as 13.63 M<TEX>$\bigodot$</TEX> and 5.83 R<TEX>$\bigodot$</TEX> for the primary, and 12.18 M<TEX>$\bigodot$</TEX> and 5.14 R<TEX>$\bigodot$</TEX> for the secondary, respectively.
879
- NHA SARAH
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.243-243
- 1996
- 원문 바로보기
UBV observations have been made jointly at three observatories for the recent eclipse of the long period atmospheric eclipsing binary star Zeta Aur in 1995-6. Observations covered successfully the phases before, during, and after the eclipse enable us to determine the accurate time of mid-eclipse and the duration of the totality. The hypothesis of the expansion of the K supergiant has been tested and the positive conclusion may be derived.
880
- EHGAMBERDIEV SH. A.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.287-289
- 1996
- 원문 바로보기
IRIS(International Research on the Interior of the sun) is the name of a worldwide network of 6 stations for whole disc Doppler shift measurements. The network has been operating since 1987 and by now a few series of a hundred days long unbroken (by day/night periodicity) data were received. Analysis of these data allowed to receivesome new results which are discussed in the paper.