TWO STRONG RADIO BURSTS AT HIGH AND MEDIUM GALACTIC LATITUDE
We constructed eight 20m elements in Nasu, and are observing radio transients over a wide-field at 1400 MHz. We report on two radio transients detected on consecutive drift scanning observations at declination 32 degrees over about two months. One of the two transients “WJN J1039+3200” appeared at α=10h39m40s ±10s, δ = 32° ±0.4° on March 4, 2005 and the other one “WJN J0645+3200” appeared at α=06h45m25s ± 10s, δ = 32° ±0.4° on March 24, 2005DBoth exhibited flux densities in excess of 1 Jy. The burst duration was within two days. There are few examples of radio transients outside the Galactic plane. Therefore, these are very important observations. We have already reported on four radio transients with features that looks like the two transients detected this time. The duration of five transients is within two days, and one transient is within three days. Four transients of six transients were detected at a high galactic latitude of b>30°. Counterparts of six WJN Transients were included X-ray sources in four events, and had a consistency of 66%. The consistency of γ-ray, PGC Galaxy, NVSS and FIRST source was concentrated at about 50%. We were not able to find a special feature in the counterpart The distribution was verified by making a logN-logS plot using those data and the newly detected data. As a result, the distribution of the radio transients that we observed might have an isotropic distribution not dependent on Galactic longitude and Galactic latitude. We cannot yet clarify these two radio transients, because their features are different from any radio burst observed in the past.
