Results 11 to 20 of about 167 (129)

Detecting Technosignatures from Earth-scale Civilizations

The Astrophysical Journal, 2023
Assuming civilizations have similar interplanetary communications and radar capability to NASA’s Deep Space Network, what is the feasibility of intercepting their communications? Interplanetary conjunctions between Earth-like exoplanets, their stars, and
Reza Ashtari
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COSMIC: An Ethernet-based Commensal, Multimode Digital Backend on the Karl G. Jansky Very Large Array for the Search for Extraterrestrial Intelligence

The Astronomical Journal, 2023
The primary goal of the search for extraterrestrial intelligence is to gain an understanding of the prevalence of technologically advanced beings (organic or inorganic) in the Galaxy.
C. D. Tremblay, S. S. Varghese, J. Hickish, P. B. Demorest, C. Ng, A. P. V. Siemion, D. Czech, R. A. Donnachie, W. Farah, V. Gajjar, M. Lebofsky, D. H. E. MacMahon, T. Myburgh, M. Ruzindana, J. S. Bright, A. Erickson, K. Lacker   +16 more
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A Simultaneous Dual-site Technosignature Search Using International LOFAR Stations

The Astronomical Journal, 2023
The Search for Extraterrestrial Intelligence aims to find evidence of technosignatures, which can point toward the possible existence of technologically advanced extraterrestrial life. Radio signals similar to those engineered on Earth may be transmitted
Owen A. Johnson, Vishal Gajjar, Evan F. Keane, David J. McKenna, Charles Giese, Ben McKeon, Tobia D. Carozzi, Cloe Alcaria, Aoife Brennan, Bryan Brzycki, Steve Croft, Jamie Drew, Richard Elkins, Peter T. Gallagher, Ruth Kelly, Matt Lebofsky, Dave H. E. MacMahon, Joseph McCauley, Imke de Pater, Shauna Rose Raeside, Andrew P. V. Siemion, S. Pete Worden   +21 more
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The Resilience of Habitable Climates Around Circumbinary Stars

Journal of Geophysical Research: Planets, Volume 125, Issue 9, September 2020., 2020
Abstract Here we use a 3‐D climate system model to study the habitability of Earth‐like planets orbiting in circumbinary systems. In the most extreme cases, Earth‐like planets in circumbinary systems could experience variations in the incident stellar flux of up to ~50% on ~100‐day timescales.
Eric T. Wolf, Jacob Haqq‐Misra, Ravi Kopparapu, Thomas J. Fauchez, William F. Welsh, Stephen R. Kane, Veselin Kostov, Siegfried Eggl   +7 more
wiley   +1 more source

A VERITAS/Breakthrough Listen Search for Optical Technosignatures

The Astronomical Journal, 2023
The Breakthrough Listen Initiative is conducting a program using multiple telescopes around the world to search for “technosignatures”: artificial transmitters of extraterrestrial origin from beyond our solar system.
A. Acharyya, C. B. Adams, A. Archer, P. Bangale, P. Batista, W. Benbow, A. Brill, M. Capasso, M. Errando, A. Falcone, Q. Feng, J. P. Finley, G. M. Foote, L. Fortson, A. Furniss, S. Griffin, W. Hanlon, D. Hanna, O. Hervet, C. E. Hinrichs, J. Hoang, J. Holder, T. B. Humensky, W. Jin, P. Kaaret, M. Kertzman, M. Kherlakian, D. Kieda, T. K. Kleiner, N. Korzoun, S. Kumar, M. J. Lang, M. Lundy, G. Maier, C. E. McGrath, M. J. Millard, H. R. Miller, J. Millis, C. L. Mooney, P. Moriarty, R. Mukherjee, S. O’Brien, R. A. Ong, M. Pohl, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, D. Ribeiro, E. Roache, J. L. Ryan, I. Sadeh, L. Saha, M. Santander, G. H. Sembroski, R. Shang, D. Tak, A. K. Talluri, J. V. Tucci, N. Vazquez, D. A. Williams, S. L. Wong, J. Woo, VERITAS Collaboration, D. DeBoer, H. Isaacson, I. de Pater, D. C. Price, A. Siemion   +68 more
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Persistence of Technosignatures: A Comment on Lingam and Loeb [PDF]

Astrobiology, 2019
In a recent article in this journal, Lingam and Loeb developed an excellent heuristic for searches for biosignatures versus technosignatures. We consider two ways in which their approach could be extended and sharpened, with focus on durability of technosignatures.
Ćirković, Milan M., Vukotić, Branislav, Stojanović, Milan   +2 more
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Novel Technosignatures

, 2020
Technosignatures can represent a sign of technology that may infer the existence of intelligent life elsewhere in the universe. This had usually meant searches for extraterrestrial intelligence using narrow-band radio signals or pulsed lasers. Back in 1960 Freeman Dyson put forward the idea that advanced civilizations may construct large structures in ...
Jackson, A. A., Benford, Gregory
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Technosignatures as a Priority in Planetary Science [PDF]

Bulletin of the AAS, 2021
Are we alone? ​ The study of technosignatures, physical manifestations of technology from extraterrestrial intelligences, is a rigorous astrobiological sub-discipline. The Planetary Science decadal should include searches for technosignatures alongside biosignatures in its recommendations for funding a robust astrobiology research portfolio.
Sheikh, Sofia, Berea, Anamaria, Davis, Ross, Torre, Gabriel G. De la, DeMarines, Julia, Fisher, Theresa, Foote, Searra, Gelino, Dawn, Grinspoon, David, Profitiliotis, George, Sessa, Alexander M., Singam, Caitlyn, Sneed, Evan L., Vidal, Clement, Wright, Jason T.   +14 more
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Inferring the Rate of Technosignatures from 60 yr of Nondetection

The Astronomical Journal, 2023
For about the last 60 yr the search for extraterrestrial intelligence has been monitoring the sky for evidence of remotely detectable technological life beyond Earth, with no positive results to date.
Claudio Grimaldi
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A 4–8 GHz Galactic Center Search for Periodic Technosignatures

The Astronomical Journal, 2023
Radio searches for extraterrestrial intelligence have mainly targeted the discovery of narrowband continuous-wave beacons and artificially dispersed broadband bursts.
Akshay Suresh, Vishal Gajjar, Pranav Nagarajan, Sofia Z. Sheikh, Andrew P. V. Siemion, Matt Lebofsky, David H. E. MacMahon, Danny C. Price, Steve Croft   +8 more
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