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相关论文: A Deep SETI Search for Technosignatures in the TRA…

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Spatiotemporal techniques for signal coordination with actively transmitting extraterrestrial civilizations, without the need for prior communication, can constrain technosignature searches to a significantly smaller coordinate space. With…

天体物理仪器与方法 · 物理学 2023-08-02 Andy Nilipour , James R. A. Davenport , Steve Croft , Andrew P. V. Siemion

The first nearby very-low mass star planet-host discovered, TRAPPIST-1, presents not only a unique opportunity for studying a system of multiple terrestrial planets, but a means to probe magnetospheric interactions between a star at the end…

太阳与恒星天体物理 · 物理学 2018-10-31 J. Sebastian Pineda , Gregg Hallinan

This paper highlights a methodological approach designed to enhance the search for extraterrestrial intelligence (SETI) by hypothesizing that a transmission technosignature would likely have two features: 1) be wideband in the microwave or…

科普物理 · 物理学 2024-02-20 Ross Davis

The Panoramic SETI (Search for Extraterrestrial Intelligence) experiment (PANOSETI) aims to detect and quantify optical transients from nanosecond to second precision over a large field-of-view ($\sim$4,450 square-degrees). To meet these…

The discovery of many Earth-like planets has renewed interest in whether life and technological civilizations exist elsewhere. The Search for Extraterrestrial Intelligence (SETI) seeks evidence for technological civilizations via…

地球与行星天体物理 · 物理学 2026-03-03 Keitaro Takahashi

A major aspect of the search for extraterrestrial intelligence (SETI) involves searching for electromagnetic transmissions from extraterrestrial sources, often using our own transmissions as a guide. Previous studies have suggested that…

天体物理仪器与方法 · 物理学 2025-08-22 Pinchen Fan , Jason T. Wright , T. Joseph W. Lazio

In this paper, we propose a novel method for distinguishing extraterrestrial intelligence (ETI) signals from radio frequency interference (RFI) by leveraging polarization features. We exploit the sinusoidal variation of the linearly…

天体物理仪器与方法 · 物理学 2023-12-08 Jian-Kang Li , Yu Chen , Zhen-Zhao Tao , Xiao-Hang Luan , Tong-Jie Zhang , Bo-Lun Huang , Xiao-Hui Sun , Vishal Gajjar

SETI@home is a radio Search for Extraterrestrial Intelligence (SETI) project, looking for technosignatures in data recorded at multiple observatories from 1998 to 2020. Most radio SETI projects analyze data using dedicated processing…

天体物理仪器与方法 · 物理学 2025-07-25 Eric J. Korpela , David P. Anderson , Jeff Cobb , Matt Lebofsky , Wei Liu , Dan Werthimer

Discovery of pulsars is one of the main goals for large radio telescopes. The Five-hundred-meter Aperture Spherical radio Telescope (FAST), that incorporates an L-band 19-beam receiver with a system temperature of about 20~K, is the most…

The SETI Ellipsoid is a strategy for technosignature candidate selection which assumes that extraterrestrial civilizations who have observed a galactic-scale event -- such as supernova 1987A -- may use it as a Schelling point to broadcast…

The Five-hundred-meter Aperture Spherical radio Telescope (FAST), the largest single dish radio telescope in the world, has implemented an innovative technology for its huge reflector, which changes the shape of the primary reflector from…

天体物理仪器与方法 · 物理学 2021-01-06 Jian-Ling Li , Bo Peng , Cheng-Jin Jin , Hui Li , Richard G. Strom , Bin Liu , Xiao-Ming Chai , Li-Jia Liu

We present the big-data challenges posed by the science operation of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Unlike the common usage of the word `big-data', which tend to emphasize both quantity and diversity, the…

天体物理仪器与方法 · 物理学 2019-11-14 Youling Yue , Di Li

The TEDI (TripleSpec - Exoplanet Discovery Instrument) will be the first instrument fielded specifically for finding low-mass stellar companions. The instrument is a near infra-red interferometric spectrometer used as a radial velocimeter.…

The Atacama Millimeter/Submillimeter Array (ALMA) remains unparalleled in sensitivity at radio frequencies above 35 GHz. In this paper, we explore ALMA's potential for narrowband technosignature detection, considering factors such as the…

天体物理仪器与方法 · 物理学 2024-12-02 Louisa A Mason , Michael A Garrett , Kelvin Wandia , Andrew P V Siemion

The seven approximately Earth-sized transiting planets in the \object{TRAPPIST-1} system provide a unique opportunity to explore habitable zone and non-habitable zone small planets within the same system. Its habitable zone exoplanets --…

地球与行星天体物理 · 物理学 2018-10-17 Zhanbo Zhang , Yifan Zhou , Benjamin V. Rackham , Daniel Apai

The Exoplanet Transmission Spectroscopy Imager (ETSI) amalgamates a low resolution slitless prism spectrometer with custom multi-band filters to simultaneously image 15 spectral bandpasses between 430 nm and 975 nm with an average spectral…

The TBT project is being developed under ESA's General Studies and Technology Programme (GSTP), and shall implement a test-bed for the validation of an autonomous optical observing system in a realistic scenario within the Space Situational…

天体物理仪器与方法 · 物理学 2016-09-27 Francisco Ocaña , Aitor Ibarra , Elena Racero , Ángel Montero , Jirí Doubek , Vicente Ruiz

TRAPPIST-1 is an ultracool dwarf (UCD) with a system of 7 terrestrial planets, at least three of which orbit in the habitable zone. The radio emission of such low-mass stars is poorly understood; few UCDs have been detected at radio…

太阳与恒星天体物理 · 物理学 2019-08-14 Anna Hughes , Aaron Boley , Rachel Osten , Jacob White

The FAST All Sky H I survey (FASHI) will cover the entire observable sky ($\sim$22000 square degrees) with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). With the currently released data, we perform an untargeted survey…

星系天体物理 · 物理学 2024-12-13 Chuan-Peng Zhang , Ming Zhu , Peng Jiang , Cheng Cheng , Jin-Long Xu , Nai-Ping Yu , Xiao-Lan Liu , Bo Zhang