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港媒:中国游客蜂拥而至 或影响“天眼”工作

2017-08-25 09:21:56   中国网

香港《南华早报》8月24日文章,原题:中国喧闹的游客可能影响全球最大射电望远镜接收外星人信号

有科学家表示,大量中国游客蜂拥而至全球最大射电望远镜所在景区,可能影响望远镜正常工作。政府本月公布的数据显示,仅在今年上半年,就有400万游客前往贵州平塘县,参观被誉为“中国天眼”的全球最大500米口径球面射电望远镜(FAST)。

平塘县一名旅游官员称,今年“中国天眼”预计吸引1000万游客。仅在端午节当天,就有约22万人涌入中国西南这块边陲山区。人数几乎是全球第二大射电望远镜——波多黎各阿雷西博天文台全年游客的两倍。这架望远镜的主要任务是接收和记录外星信号,为此须建在非常安静和孤立的地方,但大量慕名而来的游客却改变了它周围的环境。今年上半年,旅游业为平塘县创收46亿元,比去年同期增加了40%。离“中国天眼”最近的克度镇党委书记田仁飞(音)近日对当地媒体表示,今后几年,该镇的年GDP增长目标为50%。为了发展旅游业,克度这座有700年历史的古老小镇已经建了46家旅馆和100多家餐厅。

对于目前的情况,北京天文馆馆长朱进表示,选择在平塘建望远镜是因为当地与世隔绝,但现在人类活动的剧增将不可避免地增加电磁污染。朱进说,“这会影响望远镜的观测,可能没有简单的解决办法,需要双方的妥协”。在望远镜现场工作的科学家私下对此感到苦闷。为了增加门票收入,望远镜周围还在修建新的观景平台,这尤其令科学家感到担心。

去年完工的“中国天眼”耗资12亿元,是中国最昂贵的天文工程。前所未有的灵敏度可能帮助人们在从脉冲星到暗能量的广泛研究领域中获得突破性发现,有助于人类更好地了解宇宙起源。但游客的密集参观加上电子设备的使用都将对FAST的探测造成影响。尽管在周围有一个5公里的无信号缓冲区,在区域内手机等电子设备未经许可是不能使用的。但有内部研究员表示,一年1000万游客超出了望远镜设计者最大胆的猜想。他们可能需要进行新一轮调查,来评估具体影响。(斯蒂芬·陈,徐珍珍译)

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