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arXiv · 0906.2962

A GRB Follow-up System at the Xinglong Observatory and Detection of the High-Redshift GRB 060927

W. Zheng·J. Deng·M. Zhai·L. Xin·Y. Qiu·J. Wang·X. Lu·J. Wei·J. Hu
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Abstract

A gamma-ray burst (GRB) optical photometric follow-up system at the Xinglong Observatory of National Astronomical Observatories of China (NAOC) has been constructed. It uses the 0.8-m Tsinghua-NAOC Telescope (TNT) and the 1-m EST telescope, and can automatically respond to GRB Coordinates Network (GCN)alerts. Both telescopes slew relatively fast, being able to point to a new target field within about 1 min upon a request. Whenever available, the 2.16-m NAOC telescope is also used. In 2006, the system responded to 15 GRBs and detected seven early afterglows. In 2007, six GRBs have been detected among 18 follow-up observations. TNT observations of the second most distant GRB 060927 (z=5.5) are shown, which started as early as 91s after the GRB trigger. The afterglow was detected in the combined image of first 19x20s unfiltered exposures. This GRB follow-up system has joined the East-Asia GRB Follow-up Observation Network (EAFON).

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W. Zheng, J. Deng, M. Zhai, L. Xin, Y. Qiu, J. Wang, X. Lu, J. Wei, J. Hu. 2009-06-16. A GRB Follow-up System at the Xinglong Observatory and Detection of the High-Redshift GRB 060927. https://doi.org/10.1088/1009-9271%2F8%2F6%2F08

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