高原地区凭借其高海拔、稀薄的大气、较低的水汽含量及较弱的人为光污染,在天文观测台址建设中具有不可替代的优势。优越的台址条件不仅能保障观测数据的精确性和可靠性,更可为天文科研提供持续稳定的观测基础。文章围绕高原及极端高海...高原地区凭借其高海拔、稀薄的大气、较低的水汽含量及较弱的人为光污染,在天文观测台址建设中具有不可替代的优势。优越的台址条件不仅能保障观测数据的精确性和可靠性,更可为天文科研提供持续稳定的观测基础。文章围绕高原及极端高海拔区域的天文台址环境特征,对比分析了美国夏威夷莫纳克亚山、智利阿塔卡马、中国青海冷湖、中国西藏阿里、南极冰穹A(Dome A)及中国新疆慕士塔格等全球6个典型天文台址综合性能。基于地理位置、气象参数(晴夜数、温湿度、风速)、大气特征(视宁度、可降水量)(Precipitable Water Vapour,PWV),及天光亮度等关键指标,系统探讨了天文台址遴选标准,评估各台址的优势与不足,并展望其未来发展趋势,以期为天文观测设施的选址决策与科研工作提供科学依据。展开更多
由中国科学院紫金山天文台牵头,联合国内外多家研究机构组成的研究团队,利用500 m口径球面射电望远镜中国天眼(FAST)取得重要突破——在国际上首次捕捉到重复快速射电暴(fost rodio bursts,FRB)的法拉第旋转量(rotation measure,RM)发...由中国科学院紫金山天文台牵头,联合国内外多家研究机构组成的研究团队,利用500 m口径球面射电望远镜中国天眼(FAST)取得重要突破——在国际上首次捕捉到重复快速射电暴(fost rodio bursts,FRB)的法拉第旋转量(rotation measure,RM)发生剧烈跃变并随后回落的详细演化过程。这一发现结果为“快速射电暴起源于双星系统”的假说提供了迄今为止最有力的观测证据。2026年1月16日,相关研究成果发表于《Science》。展开更多
Astronomical Techniques and Instruments would like to sincerely thank the following individuals who contribute to this issue.The success of our publication hinges on the contributions of time and energy put forth by t...Astronomical Techniques and Instruments would like to sincerely thank the following individuals who contribute to this issue.The success of our publication hinges on the contributions of time and energy put forth by these professionals.展开更多
The Haoping 40 m radio telescope at the National Time Service Center,Chinese Academy of Sciences was built in 2014 and is primarily used to observe navigation satellites and pulsars.Since the first successful very lon...The Haoping 40 m radio telescope at the National Time Service Center,Chinese Academy of Sciences was built in 2014 and is primarily used to observe navigation satellites and pulsars.Since the first successful very long baseline interferometry(VLBI)observation of L-band radio source fringes in 2022,ten observations have been made so far.The stations involved in the observations include the Haoping 40 m radio telescope(Haoping),the Tianma 65 m radio telescope(Tianma),the Nanshan 26 m radio telescope(Urumqi),the Guizhou 500 m radio telescope(FAST),the Jilin 13 m radio telescope(Jilin),the Effelsberg 100 m radio telescope(Effelsberg),the Onsala 25 m radio telescope(Onsala),and the Chiang Mai 40 m radio telescope(Chiang Mai).This paper presents details on the specifications of the Haoping 40 m radio telescope,as well as the design of the VLBI experiment,the observation process,and the data processing.We also discuss the analysis of the fringe results involving the Haoping 40 m radio telescope,using Distributed FX Correlator to obtain excellent results.We confirm that the telescope is capable of participating in VLBI observations and performing specific data processing tasks.It can therefore play a greater role in future VLBI observations.展开更多
文摘高原地区凭借其高海拔、稀薄的大气、较低的水汽含量及较弱的人为光污染,在天文观测台址建设中具有不可替代的优势。优越的台址条件不仅能保障观测数据的精确性和可靠性,更可为天文科研提供持续稳定的观测基础。文章围绕高原及极端高海拔区域的天文台址环境特征,对比分析了美国夏威夷莫纳克亚山、智利阿塔卡马、中国青海冷湖、中国西藏阿里、南极冰穹A(Dome A)及中国新疆慕士塔格等全球6个典型天文台址综合性能。基于地理位置、气象参数(晴夜数、温湿度、风速)、大气特征(视宁度、可降水量)(Precipitable Water Vapour,PWV),及天光亮度等关键指标,系统探讨了天文台址遴选标准,评估各台址的优势与不足,并展望其未来发展趋势,以期为天文观测设施的选址决策与科研工作提供科学依据。
文摘由中国科学院紫金山天文台牵头,联合国内外多家研究机构组成的研究团队,利用500 m口径球面射电望远镜中国天眼(FAST)取得重要突破——在国际上首次捕捉到重复快速射电暴(fost rodio bursts,FRB)的法拉第旋转量(rotation measure,RM)发生剧烈跃变并随后回落的详细演化过程。这一发现结果为“快速射电暴起源于双星系统”的假说提供了迄今为止最有力的观测证据。2026年1月16日,相关研究成果发表于《Science》。
文摘Astronomical Techniques and Instruments would like to sincerely thank the following individuals who contribute to this issue.The success of our publication hinges on the contributions of time and energy put forth by these professionals.
基金supported by the National Science and Technology Major Project(E152KJ1201)the Natural Science Basic Research Program of Shaanxi(2024JC-YBQN-0036)+1 种基金the National Natural Science Foundation of China(42030105 and 11973046)the National SKA Program of China(2020SKA0120200).
文摘The Haoping 40 m radio telescope at the National Time Service Center,Chinese Academy of Sciences was built in 2014 and is primarily used to observe navigation satellites and pulsars.Since the first successful very long baseline interferometry(VLBI)observation of L-band radio source fringes in 2022,ten observations have been made so far.The stations involved in the observations include the Haoping 40 m radio telescope(Haoping),the Tianma 65 m radio telescope(Tianma),the Nanshan 26 m radio telescope(Urumqi),the Guizhou 500 m radio telescope(FAST),the Jilin 13 m radio telescope(Jilin),the Effelsberg 100 m radio telescope(Effelsberg),the Onsala 25 m radio telescope(Onsala),and the Chiang Mai 40 m radio telescope(Chiang Mai).This paper presents details on the specifications of the Haoping 40 m radio telescope,as well as the design of the VLBI experiment,the observation process,and the data processing.We also discuss the analysis of the fringe results involving the Haoping 40 m radio telescope,using Distributed FX Correlator to obtain excellent results.We confirm that the telescope is capable of participating in VLBI observations and performing specific data processing tasks.It can therefore play a greater role in future VLBI observations.
