The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 38 Issue 1
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- Pages.59.1-59.1
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- 2013
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- 1226-2692(pISSN)
Post-outburst observation of HBC722 in Pelican nebula
- Yang, Yuna (Department of physics and astronomy, Seoul National University) ;
- Park, Won-Kee (Korea Astronomy and Space Science Institute) ;
- Sung, Hyunil (Korea Astronomy and Space Science Institute) ;
- Lee, Sanggak (Department of physics and astronomy, Seoul National University) ;
- Yoon, Tae-Seog (Kyungpook National University) ;
- Lee, Jeongeun (Kyunghee University) ;
- Kang, Wonseok (Kyunghee University) ;
- Park, Keunhong (Department of physics and astronomy, Seoul National University) ;
- Cho, Dong-Hwan (Kyungpook National University)
- 양윤아 (서울대) ;
- 박원기 (천문연) ;
- 성현일 (천문연) ;
- 이상각 (서울대) ;
- 윤태석 (경북대) ;
- 이정은 (경희대) ;
- 강원석 (경희대) ;
- 박근홍 (서울대) ;
- 조동환 (경북대)
- Published : 2013.04.11
Abstract
HBC722 (also known as LkHa 188-G4 and PTF 10qpf; A. Miller et al., 2011) is one of the FU Orionis-like young stellar objects which outbursted in August 2010 (Semkov et al., 2010). We have been monitoring the post-outburst phase of this object since November 2010 with Korean Astronomy and Space Science Institute Near Infrared Camera System (KASINICS), at Bohyunsan Optical Astronomy Observatory (BOAO). Four filters, J, H, Ks, and H2 band, were used for this observation. We did aperture photometry to find photometric variation. The light curve shows a long period brightness change. After decrease of the brightness, which was reported at the KAS 2011 fall meeting, HBC722 brightens up slowly now. However we cannot confirm any short period variations, previously reported by Green et al (2013), due to large scatters in the obtained light curve.
Keywords