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1968년 ~ 2023년까지 1,187 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 : 1,187건 (DB Construction : 1,187 Articles)
총 게시글 1,187건
페이지 84/119
831
- TSAY WEAN-SHUN
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.409-410
- 1996
- 원문 바로보기
Speckle Interferometer equipped with an ITT intensified CCD have been used on the NCUO ( National Central University Observatory, Taiwan) 24-inch telescope for studying the orbits of bright binary systems selected from the Yale's Bright Star Catalogue. The high resolution and high sensitivity ITT intensified solid state video camera ( F4577 ) has external gain and gate control functions which will simplify the design of the speckle camera and allow us to do precise speckle photometry. The goal of this project is trying to study the bright binary systems with separations between the average size of seeing disk and the diffraction limit of the 24-inch telescope. Recently some observing data have been reduced and compared with the other teams' results. We are now improving the data reduction technology and trying to use real time observing mode on the monthly routine observation.
832
- KANG HYESUNG
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.271-272
- 1996
- 원문 바로보기
Assuming that particles can be accelerated to high energies via diffusive shock acceleration process at the accretion shocks formed by the infalling flow toward the clusters of galaxies, we have calculated the expected spectrum of high-energy protons from the cosmological ensemble of the cluster accretion shocks. The model with Jokipii diffusion limit could explain the observed cosmic ray spectrum near <TEX>$10^{19}eV$</TEX> with reasonable parameters and models if about <TEX>$10^{-4}$</TEX> of the infalling kinetic energy can be injected into the intergalactic space as the high energy particles.
833
- RIAZI N.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.283-284
- 1996
- 원문 바로보기
Wormhole solutions of general theory of relativity are known to violate energy conditions. We have considered the possibility of having wormhole solutions in Brans-Dicke theory which is the prototype of scalar-tensor theories of gravity.
834
- GRIV EVGENY
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.355-355
- 1996
- 원문 바로보기
835
- KURTANIDZE OMAR M.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.129-131
- 1996
- 원문 바로보기
The results on the deep low dispersion (1250 <TEX>${\AA}$</TEX>/mm at <TEX>$H_r</TEX>, <TEX>$30^{\circ}$</TEX> < I < <TEX>$165^{\circ}$</TEX>, <TEX>$195^{\circ}$</TEX> < I < <TEX>$210^{\circ}$</TEX>, [b] < <TEX>$5^{\circ}$</TEX>; 7000<TEX>${\AA}$</TEX>/mm at A band, <TEX>$50^{\circ}$</TEX> < I < <TEX>$115^{\circ}$</TEX>, b=<TEX>$0^{\circ}$</TEX>, b=<TEX>${\pm}3.5^{\circ}$</TEX>) spectral surveys of the MILKY WAY are presented. More than 2250 carbon stars were identified among them 1440 new ones. The C/M5+ ratio increases from 0.02 to 0.3 when longitude varies from <TEX>$30^{\circ}$</TEX> to <TEX>$210^{\circ}$</TEX>. On the basis of A GENERAL CATALOG OF GALACTIC COOL CARBON STARS the surface distribution of carbon stars has been studied.
836
- CHO YOUNG JUN
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.79-80
- 1996
- 원문 바로보기
We performed CCD surface photometry in B,V,R and I filters for three southern spiral galaxies:ESO598-G009,NGC1515 and NGC7456. Isophotal map, luminosity profile, ellipticity profile and position angle profile were obtained for these galaxies using SPIRAL package. The results show that one of the galaxies, ESO598-G009 has relatively large bulge component and changes in position angle due to spiral arms. The NGC7456 has very small bulges; and the isophotal map of the NGC1515 shows that it is a typical spiral galaxy with bar.
837
- TRIVEDI CHETNA
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.345-346
- 1996
- 원문 바로보기
The contrasting values of the oscillator strengths for the (0,0) band of SiH+ molecules for the <TEX>$A\;^1II-X\;^1{\sum}+$</TEX> transition reported in literature, motivated us to reinvestigate the same with the help of a new set of well accepted solar photospheric models, elemental abundances and dissociation energy.
838
- 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.
839
- ANDERSEN J.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.239-240
- 1996
- 원문 바로보기
Precise masses, radii, and luminosities from eclipsing binaries and colour-magnitude diagrams for open clusters are classic tools in empirical tests of stellar evolution models. We review the accuracy and completeness required for such data to discriminate between current models and describe some recent. results with implications for convection theory.
840
- LYO A-RAN
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.65-66
- 1996
- 원문 바로보기