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A new astronomical facility for Peru: transforming a telecommunication's 32-metre antenna into a radio-telescope

机译:一个新的秘鲁天文设施:将电信的32米天线转换成射电望远镜

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摘要

In 1984 an INTELSAT antenna of 32 m of diameter was constructed at 3 370 metres above the sea level on the Peruvian Andes. At the time Entel Pernica del Perú. Since transoceanic fiber optics replaced radically satellite communications in 2002, a beautiful 32- metre parabolic antenna was finished its tele-communications mission and become available for other use. So in cooperation with the National Astronomical Observatory of Japan we began coordination to transform the antenna into a radio-telescope.Researches on interstellar medium around Young Stellar Objects (YSO) are possible using methanol maser that emits at 6.7 GHz, so initially we will monitor and survey maser sources at the southern sky. An ambient temperature receiver with Trx = 60 K was developed at Nobeyama Radio Observatory and is ready to be installed. The antenna will be controlled by the Field System FS9 software installed in a PC within a Linux environment. An interface between antenna and PC was developed at Kashima Space Research Center in Japan by Mr E. Vidal.In the near future S-band (2 GHz), X-band (8GHz), 12 GHz and 22 GHz observations are planned.The peculiar position and altitude of the Peruvian Radio Observatory will be useful for VLBI observations with the VLBA for astronomical observation and geodetic measurements. For Peru where few or almost non astronomical observational instruments are available for research, implementation of the first radio observatory is a big step to foster sciences at graduate and postgraduate levels of universities. Worldwide tele-communications antennas recently tend to finish their role as tele-communications antennas. Several of them are transformed into useful observational instruments.
机译:1984年,在秘鲁安第斯山脉海拔3370米的地方建造了直径32 m的INTELSAT天线。当时是Entel Pernica delPerú。自从2002年跨洋光纤完全取代了卫星通信以来,一款精美的32米抛物面天线就完成了其通信任务,并可以用于其他用途。因此,我们与日本国家天文台合作,开始协调将天线转变为射电望远镜。利用在6.7 GHz处发射的甲醇maser可以研究年轻恒星物体(YSO)附近的星际介质。并在南部的天空中测量maser源。 Nobeyama无线电天文台开发了Trx = 60 K的环境温度接收器,可以安装了。天线将由Linux环境中PC中安装的Field System FS9软件控制。 E.Vidal先生在日本鹿岛太空研究中心开发了天线与PC之间的接口,并计划在不久的将来进行S波段(2 GHz),X波段(8GHz),12 GHz和22 GHz观测。秘鲁射电天文台的特殊位置和高度将对VLBI观测非常有用,而VLBA则可用于天文观测和大地测量。对于几乎没有或几乎没有天文观测仪器可用于研究的秘鲁,实施第一个无线电天文台是在大学的研究生和研究生水平上培养科学的重要一步。最近,全球范围内的电信天线趋于完成其作为电信天线的作用。其中一些被转化为有用的观测仪器。

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