System Description and First Light Curves of the Hungarian Automated Telescope, an Autonomous Observatory for Variability Search
System Description and First Light Curves of the Hungarian Automated Telescope, an Autonomous Observatory for Variability Search
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匈牙利自动望远镜(用于变差搜索的自主天文台)的系统描述和第一张光曲线
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发表时间:
2002
期刊:
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通讯作者:
E. Green
中科院分区:
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作者:
G. Bakos;J. Lázár;I. Papp;P. Sári;E. Green
Having been operational at Kitt Peak for more than a year, the prototype (HAT‐1) of the Hungarian Automated Telescope (HAT) has been used for an all‐sky variability search of the northern hemisphere. This small autonomous observatory is recording the brightness of stars in the range of IC ≈ 6–13 mag with a telephoto lens and its 9° × 9° field of view, yielding a data rate of ∼106 photometric measurements per night. We give brief hardware and software descriptions of the system, controlled by a single PC running RealTime Linux OS. We provide an overview of site‐specific details and quantify the astrometric and photometric capabilities of HAT. As a demonstration of system performance, we give a sample of 60 short‐period variables in a single selected field, all bright, with I<13 mag, where only 14 were known before. Depending on the observing strategy, a search for extrasolar planet transits is also a feasible observing program. We conclude with a short discussion on future directions. Further information can be found at the HAT Web page.