Initial Results of the Ichon Solar Radio Spectrograph |
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| Authors: | Cho K-S Kim K-S Moon Y-J Dryer M |
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| Institution: | (1) Radio Research Laboratory, Ichon, Kyunggi-do, 467-880, Republic of Korea;(2) Department of Astronomy and Space Science, Kyunghee University, Yongin, Kyunggi-do, 449-701, Republic of Korea;(3) Big Bear Solar Observatory/NJIT, 40386 North Shore Lane, Big Bear City, CA, 92314, U.S.A;(4) Space Environment Center, National Oceanic and Atmospheric Administration, Boulder, CO, 80303-3328, U.S.A |
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| Abstract: | A new solar radio spectrograph to observe solar radio bursts has been installed at the Ichon branch of the Radio Research
Laboratory, Ministry of Information and Communication, Korea. The spectrograph consists of three different antennas to sweep
a wide band of frequencies in the range of 30 MHz ∼ 2500 MHz. Its daily operation is fully automated and typical examples
of solar radio bursts have been successfully observed. In this paper we describe briefly its hardware and data processing
methods. Then we present coronal shock speeds estimated for 34 type II bursts from May 1998 to November 2000 and compare them
with those from other observatories. We also present the close relationship between onset time of type II bursts and X-ray
flares as well as their associations with coronal mass ejections. |
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