Results 21 to 30 of about 357 (153)

A Deep SETI Search for Technosignatures in the TRAPPIST-1 System with FAST

The Astronomical Journal
The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world’s largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives.
Guang-Yuan Song, Zhen-Zhao Tao, Bo-Lun Huang, Bo Yu, Tong-Jie Zhang   +4 more
doaj   +2 more sources

A deep-learning search for technosignatures from 820 nearby stars [PDF]

, 2023
The goal of the search for extraterrestrial intelligence (SETI) is to quantify the prevalence of technological life beyond Earth via their ‘technosignatures’. One theorized technosignature is narrowband Doppler drifting radio signals.
Vishal Gajjar, Daniel Czech, Hoang, John, Sheikh, Sofia Z., Peter Xiangyuan Ma, Andrew P. V. Siemion, S. Pete Worden, John Hoang, Imke de Pater, Danny C. Price, de Pater, Imke, Howard Isaacson, MacMahon, David H. E., Worden, S. Pete, Jamie Drew, Siemion, Andrew P. V., Gajjar, Vishal, Croft, Steve, Cherry Ng, Ma, Peter Xiangyuan, Isaacson, Howard, Ng, Cherry, Sofia Z. Sheikh, Lebofsky, Matt, Matt Lebofsky, Steve Croft, Leandro Rizk, Drew, Jamie, Rizk, Leandro, Czech, Daniel, Bryan Brzycki, Price, Danny C., David H. E. MacMahon, Brzycki, Bryan   +33 more
core   +1 more source

On Detecting Interstellar Scintillation in Narrowband Radio SETI

The Astrophysical Journal, 2023
To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI).
Bryan Brzycki, Andrew P. V. Siemion, Imke de Pater, James M. Cordes, Vishal Gajjar, Brian Lacki, Sofia Sheikh   +6 more
doaj   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

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

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
openaire   +3 more sources

Maximizing Signal Detection and Improving Radio Frequency Interference Identification in the Search for Radio Technosignatures [PDF]

, 2021
In this work, I describe significant advancements to the signal detection and Radio Frequency Interference (RFI) identification capabilities of modern radio technosignature detection algorithms.
Pinchuk, Pavlo
core   +1 more source

Technosignatures as a Path Towards Identifying Life Outside the Solar System

, 2022
: The search for biosignatures on potentially habitable exoplanets has driven much of the recent planning in the exoplanet community for the next generation of space telescopes, and as our ability to characterize exoplanets improves, we also move ...
Beatty, Thomas
core   +1 more source

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
openaire   +2 more sources