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1.10亿元!中国科学院国家天文台采购仪器设备
仪器信息网· 2025-11-07 09:09
Core Viewpoint - The National Astronomical Observatories of the Chinese Academy of Sciences has announced procurement intentions for eight types of astronomical instruments and equipment, with a total budget of 110 million yuan, expected to be procured between October and November 2025 [2][3]. Procurement Summary - The procurement includes various advanced astronomical instruments such as optical telescopes, integrated astronomical spectrometers, X-band data transmission channels, and a 40-meter diameter fully movable antenna [3][5]. - The total budget for the procurement is 110 million yuan, indicating significant investment in astronomical research capabilities [2][3]. Detailed Procurement List - X-band data transmission channel and demodulation equipment: 740,000 yuan, to be delivered by April 2028, designed for deep space data reception tasks [5][6]. - X-band cooling receiver: 400,000 yuan, also to be delivered by April 2028, with high sensitivity and electromagnetic radiation resistance [5][6]. - Three 40-meter diameter fully movable antennas: 3,300,000 yuan, to be installed and tested within 12 months [6]. - Optical telescope coating equipment: 2,300,000 yuan, for large aperture mirror coating processes [6]. - 120-meter radio radar system astronomical terminal equipment: 1,000,000 yuan, to be delivered by August 2028 [6]. - Four sets of 120-meter radio radar system astronomical receivers: 1,000,000 yuan, also to be delivered by August 2028 [6]. - A 2-meter dual-reflecting telescope optical system: 1,800,000 yuan, to be procured by October 2025 [7]. - Integrated astronomical spectrometer: 500,000 yuan, to be delivered by October 2025 [7].
耀变体喷流等离子体“火球”在实验室重现 有助破解“消失的伽马射线”之谜
Ke Ji Ri Bao· 2025-11-05 09:25
Core Insights - An international team led by the University of Oxford has successfully created a plasma "fireball" in a laboratory setting using CERN's Super Proton Synchrotron, simulating the process of quasar jets propagating through interstellar space, providing new clues to the mystery of "missing gamma rays" in the universe [1][2] Group 1: Research Findings - Quasars, driven by supermassive black holes, emit narrow, near-light-speed jets of particles and radiation, producing extremely high-energy gamma rays, which can reach several TeV [1] - Theoretical models suggest that these high-energy gamma rays scatter with background starlight in interstellar space, generating electron-positron pairs, which should interact with cosmic microwave background to produce lower-energy gamma rays that have not been detected by satellite telescopes [1][2] Group 2: Experimental Methodology - To test existing theories, the research team utilized CERN's high-radiation materials facility to generate electron-positron pairs and allowed them to pass through a one-meter-long plasma, creating an experimental model of quasar jet propagation in interstellar space [2] - The experiment measured particle beam morphology and magnetic field signals, directly testing whether "jet-plasma instability" could disrupt the jet structure [2] Group 3: Conclusions and Implications - The experiment demonstrated that the particle beam maintained a narrow, nearly parallel shape with minimal disturbances or spontaneous magnetic fields, suggesting that instability effects are too weak to explain the missing low-energy gamma rays [2] - This finding supports the hypothesis that extremely weak interstellar magnetic fields, possibly remnants of the early universe's "primordial magnetic field," exist [2] - The research represents a significant step in understanding high-energy astrophysical jets and the origins of magnetic fields, with future observational facilities like the Cherenkov Telescope Array expected to provide higher resolution data to further validate these theories [2]
走近大国重器 | “看”清太阳磁场的奥秘
Zhong Yang Ji Wei Guo Jia Jian Wei Wang Zhan· 2025-11-03 00:10
Core Viewpoint - The AIMS telescope, a significant scientific instrument for measuring solar magnetic fields, has been officially launched and is expected to enhance understanding of solar phenomena and their impact on Earth [7][15]. Group 1: AIMS Telescope Overview - The AIMS telescope is the world's first mid-infrared solar magnetic field observation device, recently passing acceptance tests and officially entering operation [7][15]. - It is located at an altitude of approximately 4000 meters in the Qaidam Basin, chosen for its optimal observational conditions after extensive site evaluations [14]. Group 2: Scientific Significance - Understanding solar magnetic fields is crucial for deciphering solar phenomena, which have implications for various aspects of life on Earth, including climate prediction and infrastructure safety [10][11]. - The AIMS telescope improves measurement precision from 100 Gauss to 10 Gauss, allowing for more accurate observations of solar magnetic fields [12][13]. Group 3: Development and Innovation - The project took over a decade to develop, with a focus on creating a high-spectral-resolution imaging system that is domestically produced [12][13]. - The team faced numerous challenges, including harsh environmental conditions and the need for self-sufficiency in technology development [20]. Group 4: Collaborative Efforts - The AIMS telescope works in conjunction with space-based solar observation satellites, enhancing the overall efficiency and quality of solar observations through a "ground-space collaboration" approach [17][18]. - This collaboration allows for comprehensive tracking of solar activities and their effects on Earth, contributing to improved space weather forecasting [18].
走进“世界巨眼”南非台址
Ren Min Ri Bao· 2025-10-27 06:18
Core Insights - The Square Kilometer Array (SKA) is a major international scientific project aimed at building the world's largest radio telescope, with significant participation from China [5][9][11] - The SKA project is divided into two sites: one in South Africa and the other in Australia, chosen for their low light pollution and optimal conditions for astronomical observations [6][9] - The project aims to enhance our understanding of the universe through advanced radio astronomy techniques, with a focus on high sensitivity, wide-field surveys, and rapid observation capabilities [10][12] Project Overview - SKA is a collaborative effort involving multiple countries, initiated in 1993, and has evolved into a global scientific partnership [9][11] - The South African site will consist of thousands of 15-meter diameter dish antennas, utilizing radio interferometry to enhance signal reception [6][8] - As of now, 64 antennas have been constructed at the South African site, with an additional 15 antennas designed and built by Chinese teams currently being assembled [6][11] Technical Features - The SKA's design allows for a large effective aperture, significantly increasing its sensitivity and ability to detect faint signals from the universe [9][10] - The MeerKAT telescope, a precursor to SKA, has already achieved notable scientific results, including imaging the center of the Milky Way and detecting signals from distant galaxies [10][12] - The project generates approximately 8 terabytes of data per second, which is processed and analyzed by supercomputers to facilitate global scientific collaboration [8][10] International Collaboration - China plays a crucial role in the SKA project, contributing to the design and construction of the mid-frequency antennas and participating in the SKA Regional Science Center [11][12] - The collaboration between SKA and China's Five-hundred-meter Aperture Spherical Telescope (FAST) is expected to enhance research capabilities in various fields of astronomy [12] - The SKA project exemplifies the importance of international cooperation in advancing scientific knowledge and addressing complex challenges in data processing and analysis [9][12]
全球首台,正式启用!
Zhong Guo Ji Jin Bao· 2025-10-18 00:04
Core Insights - The "AIMS" (Advanced Infrared Measurement System) has been officially launched, marking it as the world's first dedicated mid-infrared solar magnetic field observation device [1] - AIMS aims to enhance the understanding of solar phenomena and improve space weather forecasting through precise measurement of solar magnetic fields [1] Group 1: Technological Breakthroughs - AIMS has achieved significant technological advancements since its development began in 2015, including breakthroughs in direct measurement methods for solar magnetic fields [1] - The measurement precision of solar magnetic fields has been improved to better than 10 Gauss, addressing a century-old bottleneck in solar magnetic field measurement [1] Group 2: Research Implications - AIMS has already accumulated valuable scientific observation data, which is expected to contribute to important advancements in areas such as three-dimensional solar atmospheric dynamics and flare physics [1]
1152颗!超同一时期国外总和
Ke Ji Ri Bao· 2025-10-13 07:30
Core Viewpoint - The "China Sky Eye" (FAST) has discovered a total of 1,152 pulsars, surpassing the total number of pulsars found by other international telescopes during the same period, significantly contributing to the understanding of pulsar formation and stellar evolution [1] Group 1: Pulsar Discoveries - FAST has identified a large number of pulsars, including many millisecond pulsars and pulsar binaries, enriching the variety and quantity of pulsars [1] - The total number of pulsars discovered by FAST exceeds that of all other international telescopes combined during the same timeframe [1] Group 2: Scientific Significance - Pulsars are rapidly rotating neutron stars that emit electromagnetic pulse signals, recognized as one of the densest celestial bodies, with extremely high density, strong magnetic fields, and intense gravity [1] - Observing pulsars provides critical data for testing theories such as general relativity and detecting low-frequency gravitational waves, serving as a natural laboratory for studying the four fundamental interactions and physical laws under extreme conditions [1] Group 3: Research Advancements - During the "14th Five-Year Plan" period, FAST not only discovered numerous pulsars but also achieved several original significant results, marking a transition for China's radio astronomy research from a follower to a leader in the field [1]
宇宙探索:当“算力”定义“视力”
Zhong Guo Jin Rong Xin Xi Wang· 2025-10-11 09:37
Core Insights - The integration of AI in astronomy is revolutionizing data processing and research methodologies, enhancing efficiency and enabling new discoveries [1][3][4] - Despite its advantages in data handling, AI lacks the ability for creative thinking and theoretical innovation, which remain essential for scientific breakthroughs [8][9][10] - The role of AI in astronomy is evolving, prompting a re-evaluation of educational approaches to foster curiosity and creativity among young researchers [13][16][18] Group 1: AI Capabilities in Astronomy - AI significantly improves data processing efficiency, taking over repetitive tasks and allowing researchers to focus on more complex analyses [3][4] - AI's pattern recognition capabilities enable the extraction of meaningful signals from vast datasets, enhancing the sensitivity of observational instruments [4][5] - The deployment of AI models in satellites allows for real-time data processing, facilitating immediate responses to transient astronomical events [5][6] Group 2: Limitations of AI in Scientific Discovery - AI currently lacks the ability to generate original questions or exhibit curiosity, which are fundamental to human-driven scientific inquiry [9][10] - The "black box" nature of AI poses challenges in understanding the underlying physical mechanisms of astronomical phenomena, limiting its utility in foundational science [10][11] - AI excels in optimizing existing paradigms but cannot independently identify new research directions or significant breakthroughs [9][10] Group 3: Impact on Young Researchers - The use of AI tools can empower young scientists to tackle complex problems independently, potentially accelerating their development into leading researchers [14][15] - However, reliance on AI may lead to a decline in critical thinking and scientific intuition among students, as they may overlook the underlying physics of their data [16][18] - Future astronomers will need to integrate AI literacy into their skill sets, balancing technical proficiency with a deep understanding of scientific principles [15][16] Group 4: Future Directions in Astronomy - AI is reshaping the design philosophy of large scientific instruments, enabling cost-effective solutions through computational optics [11][12] - The collaboration between AI and human researchers is essential for navigating theoretical frameworks and exploring new scientific frontiers [18] - The ongoing evolution of AI in astronomy necessitates a thoughtful approach to education, ensuring that curiosity and creativity are preserved alongside technological advancements [18]
【科技日报】“科学与中国”青海行——“千名院士·千场科普”行动即将启动
Ke Ji Ri Bao· 2025-09-17 06:30
Core Points - The "Science and China" event in Qinghai, part of the "Thousand Academicians, Thousand Science Popularization" initiative, aims to enhance public scientific literacy and promote astronomy knowledge [4] - The event will feature seven academicians and a team of senior scientists, focusing on advancements in astronomy and the significance of China's achievements in the field [4] - The initiative is organized by the Chinese Academy of Sciences and aims to foster a positive atmosphere for technological innovation in Qinghai, particularly among youth [4] Group 1 - The event will be launched on September 17 in Xining, Qinghai [4] - It includes lectures and technology consultations in various locations, including government agencies, schools, and enterprises [4] - The goal is to stimulate interest in astronomy and technology among the local population, contributing to economic and social development [4] Group 2 - The event is supported by multiple organizations, including the Chinese Academy of Sciences, the Zijinshan Observatory, and the Qinghai Provincial Science and Technology Association [4] - The participation of renowned scientists aims to deepen public understanding of the strategic importance of astronomy development in Qinghai [4] - The initiative is expected to inject new energy into the local economy and society through enhanced scientific engagement [4]
“‘天眼’如果有一点瑕疵,我们对不起国家” 今天我们共同缅怀南仁东
Yang Shi Xin Wen Ke Hu Duan· 2025-09-15 02:22
Group 1 - The article commemorates the life and contributions of Nan Rendong, known as the father of the "Chinese Sky Eye" [1][27] - It highlights his early years at Tsinghua University, where he excelled academically and was a respected class leader [3][7] - Nan Rendong's passion for exploration and knowledge is emphasized, showcasing his dedication to learning and his diverse talents in arts and sports [10][11][16] Group 2 - The article details Nan Rendong's professional journey, including his significant role in developing China's first semiconductor radio and television transmitter [20] - It describes the ambitious project of building the world's largest radio telescope, the Five-hundred-meter Aperture Spherical Telescope (FAST), which took 22 years to complete [22][29] - The article notes that FAST made its first significant discovery shortly after Nan Rendong's passing, capturing signals from pulsars, marking a milestone in astronomical research [29][31] Group 3 - The legacy of Nan Rendong is further immortalized with the naming of an asteroid after him and the inclusion of his story in educational materials [31][34] - The article concludes with a reflection on his enduring impact on science and the continued exploration of the universe through the FAST telescope [33][34]
韦布望远镜揭示蝴蝶星云尘埃结构
Ke Ji Ri Bao· 2025-09-01 00:54
Core Insights - The Cardiff University team utilized the James Webb Space Telescope (JWST) to observe the complex cosmic dust structure of the Butterfly Nebula (NGC 6302), providing significant insights into the origins of Earth and other rocky planets [1][2] Group 1: Observational Findings - The Butterfly Nebula is located in Scorpius, approximately 3,400 light-years from Earth, and is classified as a "bipolar nebula" with two gas lobes resembling butterfly wings [1] - A dense ring of dust obscures the central star of the nebula, which is an ancient core of a sun-like star, providing energy that causes the nebula to glow [1] - The central star has a temperature of 220,000 Kelvin, making it one of the hottest known central stars of planetary nebulae in the Milky Way [1] Group 2: Dust Composition and Formation - The dense ring of dust is composed of crystalline silicates (such as quartz) and irregularly shaped dust particles, which are approximately one-millionth of a meter in size, indicating a long growth process [1] - The study revealed the presence of both cold crystalline materials formed in relatively calm environments and amorphous dust formed in more turbulent conditions, providing crucial evidence for understanding how basic planetary materials aggregate [1] Group 3: Implications for Life Origin Research - The observations also identified carbon-based polycyclic aromatic hydrocarbons, which may be related to the chemical components of life, thus opening new avenues for research into the origins of planets and life [2]