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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 99/123
981
- AI GUOXIANG
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.415-418
- 1996
- 원문 바로보기
Space Solar Telescope (SST) is a space project for solar research, its main parameters are that total weight 2.0T, sun synchronous polar circular orbit, altitude of the orbit 730KM, 3 axis stabilized attitude system, power 1200W, telemetry of the downlink rate 30Mb/s, size <TEX>$5{\ast}2{\ast}2\;M^3$</TEX>, mission life 3 years. It is expected it will be launched in 2001 or later. The main objective is structure and evolution of solar vector magnetic field with very high spatial resolution. The payloads are consisted of 6 instruments: Main optical telescope with 1-M diameter and diffraction limited resolution 0.1 arc second, EUV imaging telescope with a bundle of four telescopes and 0.5 arc second resolution, spectrometric optical coronagraph, wide band spectrometer, H-alpha and white light telescope and solar and interplanetary radiospectrometer. An assessment study between China and Germany is under operation.
982
- YERSHOV V. N.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.425-426
- 1996
- 원문 바로보기
A few optical schemes for the future Russian astrometric satellite ('Struve') are discussed. New optical materials and techniques developed at the Vavilov State Optical Institute are planned to be used for the on-board telescopes. Optical characteristics of the reflecting Schmidt and a three - mirror scheme for the on-board telescopes are compared.
983
- WEE SUN-OK
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.147-148
- 1996
- 원문 바로보기
We have estimated a metal abundance of [Fe/H]= -0.48 <TEX>$\pm$</TEX> 0.14 dex, a reddening of E(B- V)= 0.30 mag, an age of 2.0 <TEX>$\pm$</TEX> 0.4 Gyr, and a distance of 7.9 <TEX>$\pm$</TEX> 0.8 kpc for Tombaugh 2 using the Washington filter system.
984
- WANG M.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.337-338
- 1996
- 원문 바로보기
The long quasi-periodic (several tens of seconds) pulsations were observed at. short decimetric wavelength (1.42 and 2.00 GHz). Here, we introduce the features (about bandwidth, periodicity, amplitude and relative amplitude) of these pulsations, then give the discussion about them.
985
- 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.
986
- CHAKRABARTI SANDIP K.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.223-225
- 1996
- 원문 바로보기
We review current theoretical understanding of the spectral properties (low and high states, transition of states, quasi-periodic oscillations etc.) of the low mass as well as supermassive black hole candidates.
987
- 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.
988
- LI BI-QIANG
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.299-301
- 1996
- 원문 바로보기
It. has been discovered that. active regions commonly have numerous flare-like transient. loop brightenings. We use a magnetic reconnection theory driven by a ponderamotive force on account. of the basic properties of a transient. brightening: lifetime a few mins, total energy <TEX>$10^{25}\~10^{29}$</TEX> erg. The numerical results are consistent with the observations.
989
- MA YUE-HuA
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.309-311
- 1996
- 원문 바로보기
It is analysed the discrepancy about the coronal magnetic field between solar optic and solar radio using magnetic fibril concept with filling factor and fractal structure model. The magnetic field of <TEX>$\~$</TEX> 100 G considered in solar optics is mean value in a large scale, and that of <TEX>$\~$</TEX>1000 G in solar should be the value of fine structures inside 'macro' loop.
990
- ZAKIROV M. M.
- Journal of the Korean astronomical society = 천문학회지
- 29, n.suppl1
- pp.245-246
- 1996
- 원문 바로보기
The extensive close binary research program earring out at High Altitude Maydanak Observatory (Uzbekistan) by means of the UBVR photoelectric photometry on 1.0 m and 0.6 m Zeiss telescopes is described. It includes more than 240 close binary systems (CBS) in 89 different stellar aggregates. Lightcurves of CBS as well as their orbital elements derived by us are presented.