천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제37권2호
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- Pages.112.1-112.1
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- 2012
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- 1226-2692(pISSN)
Relationship Between EUV Coronal Jets and Bright Points Observed by SDO/AIA
- Kim, Il-Hoon (Department of Astronomy & Space Science, Kyunghee University) ;
- Lee, Kyoung-Sun (Department of Astronomy & Space Science, Kyunghee University) ;
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Lee, Jin-Yi
(Department of Astronomy & Space Science, Kyunghee University) ;
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Moon, Yong-Jae
(Department of Astronomy & Space Science, Kyunghee University) ;
- Sung, Suk-Kyung (School of Space Research, Kyunghee University) ;
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Kim, Kap-Sung
(Department of Astronomy & Space Science, Kyunghee University)
- 발행 : 2012.10.17
초록
We have investigated the relationship between EUV coronal jets and bright points observed by Solar Dynamic Observatory (SDO)/Atmospheric Imaging Assembly (AIA). For this we consider 39 EUV coronal jets from May 2010 to July 2011 in 171 A identified by Heliophysics Events Knowledgebase (HEK) which provides an automatic identification of coronal jets. We look for coronal jet-bright point pairs as follows. First, we select the size of event area as 360 arcsec * 360 arcsec where the coronal jets are located at the center of the area. Second, we select jet-bright point pairs in case that they are located at the same position or just adjacent. Third, we select jet-bright point pairs that are connected by loops each other. Otherwise, we select jet-bright points pairs as the nearest one. As a result, we present 19 coronal jet-bright point pairs. The mean distance of these pairs is 77.24 arcsec. According to their distance and morphological connection, we classify the following three groups: 1) Adjacent (6 events), 2) Loop connected (5 events), and 3) Not connected in appearance (8 events). The histogram of mutual distance has two peaks; the first peak corresponds to the first group and the other one to the second group. We compare these events with previous observations and theoretical models as well as discuss possible physical connections between jets and bright points.
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