Zobrazeno 1 - 10
of 74
pro vyhledávání: '"I.-S. Yuk"'
Autor:
K.-I. Seon, I.-S. Yuk, K.-S. Ryu, D.-H. Lee, J.-H. Park, H. Jin, J.-H. Shinn, U.-W. Nam, W. Han, K. Min, E. Korpela, K. Nishikida, J. Edelstein
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 21, Iss 4, Pp 399-416 (2004)
The FIMS (Far-ultraviolet IMaging Spectrograph), the main payload onboard the first Korean science satellite STSAT-1, has performed various observations since its launch on September 2003. It has been found that the attitude informations provided by
Externí odkaz:
https://doaj.org/article/eefe580e228c46cb82ae773a20a2696e
Autor:
I. -J. Kim, K. -I. Seon, I.-S. Yuk, U.-W. Nam, H. Jin, J.-H. Park, K.-S. Ryu, D.-H. Lee, W. Han, K.-W. Min, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 21, Iss 4, Pp 383-390 (2004)
We describe the in-flight sensitivity calibration of the Far ultraviolet Imaging Spectrograph (FIMS, also known as SPEAR) onboard the first Korean science satellite, STSAT-1, which was launched in September 2003. The sensitivity calibration is based
Externí odkaz:
https://doaj.org/article/45fc052e59d04a8cb54bea58298f3a0c
Autor:
K.-I. Seon, I.-S. Yuk, U.-W. Nam, H. Jin, J.-H. Park, J.-G. Rhee, K.-S. Ryu, D.-H. Lee, H.-S. Oh, K.-K. Kong, W. Han, K.-W. Min, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 19, Iss 4, Pp 283-292 (2002)
Electronic boards of Far-ultraviolet IMaging Spectrograph (FIMS) should be designed to maintain their performances, and their temperatures should be remained within the allowed temperatures in operational environments. Thermal analysis at the electro
Externí odkaz:
https://doaj.org/article/ae34eed9223341f29b8c3735f0faae53
Autor:
K.-S. Ryu, I.-S. Yuk, K.-I. Seon, Y.-W. Lee, U.-W. Nam, J.-H. Shin, S.-J. Hong, D.-H. Lee, H. Jin, S.-H. Oh, J.-G. Rhee, K.-W, Min, W. Han, J.-H. Park, J. Edelstein, E. J. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 3, Pp 239-248 (2001)
Far-ultraviolet IMaging Spectrograph (FIMS) is the main payload of the first Korean scientific satellite, KAISTSAT-4, which will be launched in 2002. Among the optical parts, parabolic cylinder mirror does not have any heritage from previous astronom
Externí odkaz:
https://doaj.org/article/3b5092491bd44b72863674bf8e6d897f
Autor:
K.-I. Seon, I.-S. Yuk, K.-S. Ryu, J.-H. Park, H. Jin, J.-H. Seon, S.-H. Oh, J.-G. Rhee, D.-H. Lee, U.-W. Nam, W. Han, K.-W, Min, W.-B. Lee, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 3, Pp 219-230 (2001)
Far-ultraviolet IMaging Spectrograph (FIMS) is under development as the main payload of the first Korean science satellite, KAISTSAT-4. An extensive sensitivity and error budget analyses of FIMS optical system have been performed. As an way of estima
Externí odkaz:
https://doaj.org/article/341db3b858c944dc9af3ff96b89d654f
Autor:
J.-H. Park, K.-I. Seon, K.-S. Ryu, I.-S. Yuk, H. Jin, D.-H. Lee, S.-H. Oh, J. Seon, U.-W. Nam, W. Han, W.-B. Lee, K.-W, Min, J. Edelstein, E. J. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 3, Pp 209-218 (2001)
Global exposure time distribution through all-sky survey, one of main science missions of KAISTSAT-1, has been simulated. Exposure time distribution has its minimum on the celestial equator and increases with moving to polar regions according to the
Externí odkaz:
https://doaj.org/article/25c8bcd35e4c42589bc89b373f49d865
Autor:
K.-I. Seon, I.-S. Yuk, K.-S. Ryu, J.-H. Park, K. Kang, H. Jin, U.-W. Nam, W. Han, K.-W. Min, W.-B. Lee, J. Edelstein, E. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 1, Pp 81-93 (2001)
Far ultraviolet IMaging Spectrograph (FIMS) should be designed to maintain its structural stability and to minimize optical performance degradation in launch and in operation enviroments. The structural and thermal analyzes of grating and grating mou
Externí odkaz:
https://doaj.org/article/b5c2245dc7cd472f818a25c34ac2bd31
Autor:
K.-I. Seon, K.-S. Ryu, I.-S. Yuk, J.-H. Park, U.-W. Nam, W. Han, J.-H. Seon, K.-W. Min, J. Edelstein, E. J. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 17, Iss 1, Pp 77-86 (2000)
There have been a few attempts to measure diffuse line emission between 900 //A and 1200 //A, and only in a limited number of sight lines has it been detected. The main contributions to the equilibrium radiative cooling curve between 10^4.5 K to 10^6
Externí odkaz:
https://doaj.org/article/aaa66e10218b405da0e775c4052fc520
Autor:
K.-S. Ryu, K.-I. Seon, I.-S. Yuk, J.-H. Seon, U.-W. Nam, D.-H. Lee, K.-W. Min, W. Han, J. Edelstein, E. J. Korpela
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 17, Iss 1, Pp 67-76 (2000)
Far-ultraviolet IMaging Spectrograph (FIMS) is the main payload of the first Korean scientific satellite, KAISTSAT-4, which will be launched in 2002. The optical system of FIMS consists of parabolic cylinder mirror, slit, ellipsoidal reflection grati
Externí odkaz:
https://doaj.org/article/f1fd77538eae4544aa8d68d017e1eda8
Autor:
B. Y. Welsh, J. Edelstein, E. J. Korpela, J. Kregenow, M. Sirk, K.-W. Min, J. W. Park, K. Ryu, H. Jin, I.-S. Yuk, J.-H. Park
Publikováno v:
Astronomy & Astrophysics. 472:509-517
We present far ultraviolet (FUV: 912 - 1750AA) spectral imaging observations recorded with the SPEAR satellite of the interstellar OVI (1032AA), CIV (1550AA), SiIV (1394AA), SiII* (1533AA) and AlII (1671AA) emission lines originating in a 60 x 30 deg