• Title/Summary/Keyword: K-space

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Status Report of Korean Large Telescope Project

  • Park, Byeong-Gon;Kim, Sang-Chul;Kim, Young-Soo;Kim, Ho-Il;Sung, Hyun-Il;Ahn, Sang-Hyun;Yuk, In-Soo;Lyo, A-Ran;Lee, Dong-Wook;Lee, Sung-Ho;Chun, Moo-Young;Han, Jeong-Yeol
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2008년도 한국우주과학회보 제17권2호
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    • pp.36.4-37
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    • 2008
  • KASI is planning a large telescope project to acquire 10% share of the GMT (Giant Magellan Telescope) extremely large telescope as one of national R&D project. By participating in GMT, we expect to provide the best environment for observational astronomers in Korea and give opportunity to upgrade the current research and instrumentation level to world-leading class. In this contribution, we will report the concept of the GMT project and Korean participation plan as well as the current status of fundraising activity.

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Correlation Between the “seeing FWHM” of Satellite Optical Observations and Meteorological Data at the OWL-Net Station, Mongolia

  • Bae, Young-Ho;Jo, Jung Hyun;Yim, Hong-Suh;Park, Young-Sik;Park, Sun-Youp;Moon, Hong Kyu;Choi, Young-Jun;Jang, Hyun-Jung;Roh, Dong-Goo;Choi, Jin;Park, Maru;Cho, Sungki;Kim, Myung-Jin;Choi, Eun-Jung;Park, Jang-Hyun
    • Journal of Astronomy and Space Sciences
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    • 제33권2호
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    • pp.137-146
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    • 2016
  • The correlation between meteorological data collected at the optical wide-field patrol network (OWL-Net) Station No. 1 and the seeing of satellite optical observation data was analyzed. Meteorological data and satellite optical observation data from June 2014 to November 2015 were analyzed. The analyzed meteorological data were the outdoor air temperature, relative humidity, wind speed, and cloud index data, and the analyzed satellite optical observation data were the seeing full-width at half-maximum (FWHM) data. The annual meteorological pattern for Mongolia was analyzed by collecting meteorological data over four seasons, with data collection beginning after the installation and initial set-up of the OWL-Net Station No. 1 in Mongolia. A comparison of the meteorological data and the seeing of the satellite optical observation data showed that the seeing degrades as the wind strength increases and as the cloud cover decreases. This finding is explained by the bias effect, which is caused by the fact that the number of images taken on the less cloudy days was relatively small. The seeing FWHM showed no clear correlation with either temperature or relative humidity.

Beyond the BOES ; IGRINS, GCLEF and GMTNIRS

  • Kim, Kang-Min;Park, Chan;Chun, Moo Young;Kim, Jihun;Oh, Jae Sok;Park, Sung-Joon;Jang, Jeong Gyun;Jang, Bi Ho;Lee, Sungho;Oh, Heeyoung;Yuk, In Soo
    • 천문학회보
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    • 제41권1호
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    • pp.59.2-59.2
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    • 2016
  • 보현산천문대가 준공되면서, 1.8 m 망원경이 연구자들에게 공개된지 20년이 되었다. 당시 보현산 천문대의 연구자들은 1.8 m 망원경을 도약망원경이라 부르면서, 우리나라 천문학의 비약적인 발전의 토대가 되기를 희망하였다. 보현산천문대 10주년 기념 담양 워크샵에서 BOES의 성과를 발표한 이후 10년 동안, 천문연구원 광학천문기술 그룹에서는 BOES 편광분광기와 IGRINS를 개발 완료하였으며, GMTNIRS의 개념설계와 GCLEF의 기본설계가 진행되었다. 여기에서는 그동안 개발된 고분산 천체분광기 프로젝트의 성과를 정리하고, 앞으로의 계획을 논의한다.

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OPTICAL SURVEY WITH KMTNET FOR DUSTY STAR-FORMING GALAXIES IN THE AKARI DEEP FIELD SOUTH

  • JEONG, WOONG-SEOB;KO, KYEONGYEON;KIM, MINJIN;KO, JONGWAN;KIM, SAM;PYO, JEONGHYUN;KIM, SEONG JIN;KIM, TAEHYUN;SEO, HYUN JONG;PARK, WON-KEE;PARK, SUNG-JOON;KIM, MIN GYU;KIM, DONG JIN;CHA, SANG-MOK;LEE, YONGSEOK;LEE, CHUNG-UK;KIM, SEUNG-LEE;MATSUURA, SHUJI;PEARSON, CHRIS;MATSUHARA, HIDEO
    • 천문학회지
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    • 제49권5호
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    • pp.225-232
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    • 2016
  • We present an optical imaging survey of AKARI Deep Field South (ADF-S) using the Korea Microlensing Telescope Network (KMTNet), to find optical counterparts of dusty star-forming galaxies. The ADF-S is a deep far-infrared imaging survey region with AKARI covering around 12 deg2, where the deep optical imaging data are not yet available. By utilizing the wide-field capability of the KMTNet telescopes (~4 deg2), we obtain optical images in B, R and I bands for three regions. The target depth of images in B, R and I bands is ~24 mag (AB) at 5σ, which enables us to detect most dusty star-forming galaxies discovered by AKARI in the ADF-S. Those optical datasets will be helpful to constrain optical spectral energy distributions as well as to identify rare types of dusty star-forming galaxies such as dust-obscured galaxy, sub-millimeter galaxy at high redshift.

Construction of Korean Space Weather Prediction Center: SCINTMON and All-Sky Camera

  • Kwak, Young-Sil;Hwang, Jung-A;Cho, Kyung-Suk;Bong, Su-Chan;Choi, Seong-Hwan;Park, Young-Deuk;Kyeong, Jae-Mann;Park, Yoon-Ho
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2008년도 한국우주과학회보 제17권2호
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    • pp.33.1-33.1
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    • 2008
  • As a part of the construction of Korean Space Weather Prediction Center (K-SWPC), Korea Astronomy and Space Science Institute (KASI) installed a Scintillation Monitor (SCINTMON) and an All-Sky Camera to observe upper atmospheric/ionospheric phenomena. The SCINTMON is installed in KASI building in Daejeon in cooperation with Cornell university and is monitoring the ionospheric scintillations on GPS L-band signals. All-Sky Camera is installed at Mt. Bohyun in Youngcheon in cooperation with Korea Polar Research Institute. It is used to take the photograph for upper atmospheric layer through appropriate filters with specific airglow or auroral emission wavelengths and to observe upper atmospheric disturbance, propagation of gravity wave and aurora. The integrated data from the instruments including SCINTMON and All-Sky Camera will be used for giving nowcast on the space weather and making confidential forecast based on some space weather prediction models.

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