High and low galactic latitude radio transients in the Nasu 1.4 GHz wide-field survey

N. Matsumura*, T. Daishido, M. Kuniyosfd, K. Asuma, K. Takefuji, K. Niinuma, S. Kida, A. Takeuchi, R. Nakamura, S. Shigehiro, T. Tanaka

*この研究の対応する著者

    研究成果: Article査読

    19 被引用数 (Scopus)

    抄録

    We report the detection of two radio transients in the Nasu 1.4 GHz wide-field survey. In the survey, we use four pairs of the two-element interferometer aligned east-west to monitor the wide-field sky and simultaneously survey the region at +32° < 6 < +42° in drift scanning. In 27 days of continuous observation at a declination between +41° and +42°, we have detected two radio transients of 1 Jy intensity. Since they appeared on only a single day during the 27 days, we consider these detections to be 1 Jy class bursts that brightened and faded within 2 days and have constant emission smaller than 200 mJy, the detection limit of the 27 days of integrated data. While one transient was in low Galactic latitudes, the other transient was detected in high Galactic latitudes and has counterparts only in γ-ray databases. Therefore, the high Galactic latitude transient might be one of the active galactic nuclei that are normally very faint in X-ray and quiet in radio wavelengths.

    本文言語English
    ページ(範囲)1441-1446
    ページ数6
    ジャーナルAstronomical Journal
    133
    4
    DOI
    出版ステータスPublished - 2007 4月

    ASJC Scopus subject areas

    • 宇宙惑星科学
    • 天文学と天体物理学

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