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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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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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海外网9月13日电 据日本NHK电视台12日晚消息，日本前首相安倍晋三的国葬举办在即，日本政府13日表示，为表哀悼之意，将在国葬时安排自卫队仪仗队，并鸣吊唁礼炮。
二 | 参与的自卫队员将超千人。安倍国葬定于9月27日在东京北之丸公园的日本武道馆举行。日本政府13日称，基于此前国葬案例，将安排自卫队实施相关礼仪活动。在安倍骨灰抵达会场之际，将鸣炮19响。
三 | 在会场附近沿途，自卫队员将等间距站立敬礼。届时还将安排乐队演奏。
四 | 日本防卫省及自卫队拟于近期敲定具体礼仪活动内容。担任警备工作的东京警视厅也正在积极为安倍国葬进行准备，届时将采取最高规格的戒备。目前，安倍的国葬因总额高达约16.6亿日元（约合人民币8061万元）而遭到日本各界质疑。其中，外国政要的接待费约6亿日元（约合人民币2913万元）。
五 | 近期多家日媒舆论调查结果显示，超半数日本民众反对为安倍举办国葬。9月5日，由日本大学教授、律师等人士组成的社会团体向日本政府提交了约28万人签名的请愿书，要求取消安倍国葬，称政府此举意味着强制民众悼念。（海外网/王珊宁）
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