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Related papers: SETI strategy with FAST fractality

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The Five-hundred-meter Aperture Spherical radio Telescope (FAST) has started the Commensal Radio Astronomy FasT Survey (CRAFTS). In this paper, we use the technical parameters of FAST derived from commissioning observations to simulate the…

The Defense Department and NASA are investigating the possibility that aliens are currently surveilling Earth. This aligns with some search-for-extraterrestrial-intelligence (SETI) theorists who have concluded that ET's best strategy for…

Popular Physics · Physics 2023-08-30 John Gertz

The Five-hundred-meter Aperture Spherical Radio Telescope (FAST) Core Array is a proposed extension of FAST, integrating 24 secondary 40-m antennas implanted within 5 km of the FAST site. This original array design will combine the…

Instrumentation and Methods for Astrophysics · Physics 2024-08-26 Peng Jiang , Rurong Chen , Hengqian Gan , Jinghai Sun , Boqin Zhu , Hui Li , Weiwei Zhu , Jingwen Wu , Xuelei Chen , Haiyan Zhang , Tao An

Detection of signals from a possible extrasolar technological civilization is one of the challenging efforts of science. In this work, we propose using natural telescopes made of single or binary gravitational lensing systems to magnify…

Instrumentation and Methods for Astrophysics · Physics 2016-08-31 Sohrab Rahvar

We propose using large Air Cerenkov Telescopes (ACT's) to search for optical, pulsed signals from extra-terrestrial intelligence. Such dishes collect tens of photons from a nanosecond-scale pulse of isotropic equivalent power of tens of…

Astrophysics · Physics 2007-05-23 David Eichler , Gregory Beskin

Since the commencement of the first SETI observation in 2019, China's Search for Extraterrestrial Intelligence program has garnered momentum through domestic support and international collaborations. Several observations targeting…

Earth and Planetary Astrophysics · Physics 2024-11-21 Tong-Jie Zhang , Bo-Lun Huang , Jian-Kang Li , Zhen-Zhao Tao , Xiao-Hang Luan , Zhi-Song Zhang , Yu-Chen Wang

The Five-Hundred-Meter Aperture Spherical Radio Telescope(FAST) is the largest single-dish radio telescope in the world. In this paper, we make forecast on the FAST HI large scale structure survey by mock observations. We consider a drift…

Cosmology and Nongalactic Astrophysics · Physics 2020-03-30 Wenkai Hu , Xin Wang , Fengquan Wu , Yougang Wang , Pengjie Zhang , Xuelei Chen

Radio SETI experiments aim to test the hypothesis that extraterrestrial civilizations emit detectable signals from communication, propulsion, or other technologies. The unprecedented capabilities of next generation radio telescopes,…

Instrumentation and Methods for Astrophysics · Physics 2019-08-12 Steve Croft , Andrew P. V. Siemion , James M. Cordes , Ian S. Morrison , Zsolt Paragi , Jill Tarter

We present modeled detection limits of the Gemini Planet Imager (GPI) and the Wide-Field Infrared Space Telescope (WFIRST) to an optical and infrared laser which could be used by an extraterrestrial civilization to signal their presence.…

Instrumentation and Methods for Astrophysics · Physics 2020-01-08 Christina L. Vides , Bruce Macintosh , Breanna A. Binder , Robert J. De Rosa , Jean-Baptiste Ruffio , Dmitry Savransky

Five-hundred-meter Aperture Spherical radio Telescope (FAST) is a Chinese mega-science project to build the largest single dish radio telescope in the world. Its innovative engineering concept and design pave a new road to realize a huge…

Instrumentation and Methods for Astrophysics · Physics 2011-06-01 Rendong Nan , Di Li , Chengjin Jin , Qiming Wang , Lichun Zhu , Wenbai Zhu , Haiyan Zhang , Youling Yue , Lei Qian

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…

Popular Physics · Physics 2024-02-20 Ross Davis

The search for extraterrestrial intelligence (SETI) is a scientific endeavor which struggles with unique issues -- a strong indeterminacy in what data to look for and when to do so. This has led to attempts at finding both fundamental…

Information Theory · Computer Science 2021-07-22 Ian George , Xinan Chen , Lav R. Varshney

As a guide for astronomers new to the field of technosignature search (i.e. SETI), I present an overview of some of its observational and theoretical approaches. I review some of the various observational search strategies for SETI,…

Instrumentation and Methods for Astrophysics · Physics 2021-07-28 Jason T. Wright

A new method for the line-of-sight velocity estimation of a high-speed near-Earth object (asteroid, meteorite) is suggested. The method is based on use of fractional, one-half order derivative of a Doppler signal. The algorithm suggested is…

Earth and Planetary Astrophysics · Physics 2015-06-17 V. D. Zakharchenko , I. G. Kovalenko

The search for extraterrestrial intelligence by looking for signals from advanced technological civilizations has been ongoing for some decades. We suggest that it could possibly be made more efficient by focusing on stars from which the…

Earth and Planetary Astrophysics · Physics 2009-03-10 Shmuel Nussinov

The Breakthrough Listen Initiative has embarked on a comprehensive SETI survey of nearby stars in the Milky Way that is vastly superior to previous efforts as measured by a wide range of different metrics. SETI surveys traditionally ignore…

High Energy Astrophysical Phenomena · Physics 2022-09-20 M. A. Garrett , A. P. V. Siemion

We apply classical machine vision and machine deep learning methods to prototype signal classifiers for the search for extraterrestrial intelligence. Our novel approach uses two-dimensional spectrograms of measured and simulated radio…

Instrumentation and Methods for Astrophysics · Physics 2019-02-08 G. R. Harp , Jon Richards , Seth Shostak Jill C. Tarter , Graham Mackintosh , Jeffrey D. Scargle , Chris Henze , Bron Nelson , G. A. Cox , S. Egly , S. Vinodababu , J. Voien

A spectral line image cube generated from 115 minutes of MWA data that covers a field of view of 400 sq. deg. around the Galactic Centre is used to perform the first Search for ExtraTerrestrial Intelligence (SETI) with the Murchison…

Earth and Planetary Astrophysics · Physics 2016-08-17 S. J. Tingay , C. Tremblay , A. Walsh , R. Urquhart

In the present manuscript we consider the possibility of SETI by the small size (with diameters less than 1 m) optical telescopes. Calculations are performed for typical parameters of the mentioned type of telescopes. In particular, we show…

Popular Physics · Physics 2022-08-17 Z. N. Osmanov , V. I. Berezhiani

Following from the results of the first systematic modern low frequency Search for Extraterrestrial Intelligence (SETI) using the Murchison Widefield Array (MWA), which was directed toward a Galactic Center field, we report a second survey…

Popular Physics · Physics 2018-04-04 S. J. Tingay , C. D. Tremblay , S. Croft