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Analysis of historical meteor and meteor shower records: Korea, China, and Japan |
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| Authors: | Hong-Jin Yang Changbom Park |
| Institution: | a Korea Astronomy Observatory, 61-1 Whaam-dong, Yuseong-gu, Daejeon 305-348, South Korea b Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu 702-701, South Korea c School of Physics, Korea Institute for Advanced Study, Seoul 130-722, South Korea |
| Abstract: | We have compiled and analyzed historical Korean meteor and meteor shower records in three Korean official history books, Samguksagi which covers the three Kingdoms period (57 B.C.-A.D. 935), Goryeosa of Goryeo dynasty (A.D. 918-1392), and Joseonwangjosillok of Joseon dynasty (A.D. 1392-1910). We have found 3861 meteor and 31 meteor shower records. We have confirmed the peaks of Perseids and an excess due to the mixture of Orionids, north-Taurids, or Leonids through the Monte Carlo test. The peaks persist from the period of Goryeo dynasty to that of Joseon dynasty, for almost one thousand years. Korean records show a decrease of Perseids activity and an increase of Orionids/north-Taurids/Leonids activity. We have also analyzed seasonal variation of sporadic meteors from Korean records. We confirm the seasonal variation of sporadic meteors from the records of Joseon dynasty with the maximum number of events being roughly 1.7 times the minimum. The Korean records are compared with Chinese and Japanese records for the same periods. Major features in Chinese meteor shower records are quite consistent with those of Korean records, particularly for the last millennium. Japanese records also show Perseids feature and Orionids/north-Taurids/Leonids feature, although they are less prominent compared to those of Korean or Chinese records. |
| Keywords: | Meteors Meteor showers Seasonal variation Korean historical records Perseids Orionids North-Taurids Leonids |
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