• Title/Summary/Keyword: astronomical physics

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SNU Astronomical Observatory 1-m Telescope

  • Im, Myungshin;Lim, Gu;Seo, Jinguk;Paek, Gregory SunHak
    • The Bulletin of The Korean Astronomical Society
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    • v.43 no.1
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    • pp.69.1-69.1
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    • 2018

  • Astronomy education and research can benefit from a high performance telescope that is easily accessible in campus. Such a facility allows hands-on education of observations, small research projects, test of new instruments, and time-domian study of astronomical phenomena. Recently, SNU reconstructed a 40-year old observatory (also known as 구천문대), and established the new SNU Astronomical Observatory (SAO) on that site. On 2018 March 27, the 1-m optical telescope was successfully installed at SAO. Since then, this telescope has been producing wonderful images. This poster will give an overview of the 1-m telescope, and its performance.

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Optical follow-up observation of three long GRBs with SomangNet facilities

  • Paek, Gregory S.H.;Im, MyungShin;Kim, Joonho;Lim, Gu;Jeong, Mankeun;Kang, Wonseok;Kim, Taewoo;Burkhonov, Otabek;Mirazaqulov, Davron;Ehgamberdiev, Shyhrat A.;Seo, Jinguk;Lee, Chung-Uk;Kim, Seung-Lee;Sung, Hyung-Il
    • The Bulletin of The Korean Astronomical Society
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    • v.46 no.1
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    • pp.49.5-50
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    • 2021

  • We report the optical follow-up observations of three long γ-ray burst events, GRB 201020A, GRB 201103B and GRB 210104A by the network of telescopes in the SomangNet project. We show light curves, color evolution and SED evolution, and fit them to a single power law function to derive decay index and compare their properties with other long GRBs samples. Also, we show a good observational example that 0.4-1m class telescopes in SomangNet have potential to catch dim light from high red shift object (R>22 mag) by deep imaging. In conclusion, we found that three GRBs have optical afterglow properties of long GRB and our results are consistent with the reports of high energy analysis.

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