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Chinese-made infrared telescope with domestic detectors achieves astronomical imaging, reducing foreign reliance_我的网站

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A | 　　讯水利部8月14日消息，受台风“白海豚”残余环流和冷空气及季风槽等影响，预计8月14—16日，江苏南部、上海、浙江、安徽东部南部、江西大部、福建南部西部、广东中部东部等地将有大到暴雨；其中，江苏南部、浙江东北部、广东中部等地局部将有大暴雨。　　预计，太湖将发生流域性较大洪水，滁河可能发生2026年第2号洪水，沙颍河维持超保。

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Ground-based infrared telescope installed at Saishiteng Mountain, Lenghu township, Northwest China's Qinghai Province Photo: Screenshot from gdstc.gd.gov.cn
Chinese scientists on Wednesday released the first complete set of observational images captured by China's new-generation ground-based infrared telescope, filling a gap in the country's near-infrared astronomical observation capabilities and reducing reliance on foreign infrared detector technology, China News Service reported on Wednesday.
The 80-centimeter near-infrared telescope was installed at Saishiteng Mountain, Lenghu township, Northwest China's Qinghai Province in October 2024. Jointly developed by Sun Yat-sen University and several partner institutions, the telescope is China's first to achieve scientific imaging in the 1.2-micrometer J band and 2.2-micrometer K band using domestically developed scientific-grade InGaAs and HgCdTe detectors.
The telescope enables unattended remote operations, and can lock onto any target in the sky within 15 seconds. Its infrared capability allows it to see through interstellar dust, enabling it to observe cold and distant celestial objects that are difficult for optical telescopes to capture.
According to Ma Bin, a professor at the School of Physics and Astronomy, Sun Yat-sen University who led the research team that released the infrared telescope's observational images, all three of the telescope's core astronomical observation capabilities were fully validated during operation.
It rapidly responded to and tracked multiple gamma-ray bursts and supernova events, recording the evolution of their infrared afterglows following the explosions. It continuously monitored brown dwarfs, precisely capturing periodic variations in their atmospheric brightness. Using image-stacking technology, it also observed active galaxies billions of light-years away.
Since its deployment in Lenghu, the system has supported infrared observations for more than 10 Chinese research institutions, accumulating valuable experience for the construction of future large-scale infrared telescopes.
Lenghu township, where the world-class astronomical observation base takes shape, is hailed as "the most Mars-like place on the Earth." The astronomical observation base was said to be an astronomical observation site comparable to the top ones in the world by a Nature article published on August 18, 2021, according to the Chinese Academy of Sciences.
Once prospered in 1950s due to its rich petroleum resources, Lenghu is now becoming a premier astronomical observation site and Mars-themed tourist destination, according to Xinhua News Agency.
Global Times
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C | 太湖周边河网，长江下游支流滁河及江苏里下河，浙江沿海曹娥江、椒江，广东北江等主要河流将出现明显涨水过程，暴雨区内部分中小河流可能发生超警洪水。　　水利部信息中心升级发布洪水黄色预警，提醒江苏、上海、浙江、安徽、河南、江西、福建、广东等省（直辖市）相关地区社会公众注意防范。建议持续关注水情预警信息，暴雨时尽量减少外出，避开积水路段、地下通道、深山峡谷等危险区域；驾车出行主动绕行漫水桥和积水低洼地段，切勿强行涉水；居住在山区和河湖岸边的群众要远离低洼空间，提前做好转移避险相关准备。版权申明：凡注有“”或电头为“”的稿件，均为独家版权所有，未经许可不得转载或镜像；授权转载必须注明来源为“”，并保留“”的电头。。

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Published on:14:18:19