Results 61 to 70 of about 357 (153)

Exo-Life Finder (ELF) Telescope: new strategies for direct detection of exoplanet biosignatures and technosignatures

, 2018
The Exo-Life Finder (ELF) will be an optical system with the resolving power of a ≥20m telescope optimized for characterizing exoplanets and detecting exolife.
Tarter, J., Krissansen-Totton, J., David Catling, John Lee Grenfell, Tina Santl-Temkiv, Finster, K., Grenfell, J L, Langlois, M., Gil Moretto, Joshua Krissansen-Totton, Franck Marchis, Santi-Temkiv, T., Apai, D., Maud Langlois, Catling, D, Jill Tarter, Marchis, F., Daniel Apai, Kuhn, J.R., Svetlana V. Berdyugina, Jeff R. Kuhn, Hargitai, Hendrik, Moretto, G., Berdyugina, S.V., Kai Finster, Henrik Hargitai   +25 more
core   +1 more source

Observational Constraints on the Great Filter

, 2020
The search for spectroscopic biosignatures with the next generation of space telescopes could provide observational constraints on the abundance of exoplanets with signs of life.
Ravi Kumar Kopparapu, Schwieterman, Edward, Edward Schwieterman, Kopparapu, Ravi Kumar, Jacob Haqq-Misra, Haqq-Misra, Jacob   +5 more
core   +1 more source

Results from NASA’s First Radio Telescope on the Moon: Terrestrial Technosignatures and the Low-frequency Galactic Background Observed by ROLSES-1 on Board the Odysseus Lander

The Astronomical Journal
Radio wave Observations on the Lunar Surface of the photo-Electron Sheath (ROLSES-1) instrument on board Intuitive Machines’ Odysseus lunar lander represents NASA’s first radio telescope on the Moon, and the first United States spacecraft landing on the ...
Joshua J. Hibbard, Jack O. Burns, Robert MacDowall, Natchimuthuk Gopalswamy, Scott A. Boardsen, William Farrell, Damon Bradley, Thomas M. Schulszas, Johnny Dorigo Jones, David Rapetti, Jake D. Turner   +10 more
doaj   +1 more source

Exo–IPM Scattering as a Hidden Gatekeeper of Narrowband Technosignatures

The Astrophysical Journal
Narrowband radio technosignatures can be significantly modulated by the host star’s exoplanetary interplanetary medium (Exo-IPM), where turbulence in stellar winds and coronal mass ejections (CMEs) imprint spectral broadening.
Vishal Gajjar, Grayce C. Brown
doaj   +1 more source

All-sky Ultra-narrowband Spectral Imaging with the OVRO–LWA: Technosignature Constraints and Axion-like Particle Prospects

The Astronomical Journal
We present an imaging-domain search for technosignatures at decametric wavelengths with the Owens Valley Radio Observatory Long Wavelength Array, targeting ultra-narrowband continuous-wave signals between 50 and 86 MHz.
Nikita Kosogorov, Gregg Hallinan, Greg Hellbourg, Marin M. Anderson, Judd D. Bowman, Ruby Byrne, Morgan Catha, Bin Chen, Xingyao Chen, Sherry Chhabra, Larry D’Addario, Ivey Davis, Jayce Dowell, Katherine Elder, Dale Gary, Charlie Harnach, Jack Hickish, Rick Hobbs, David Hodge, Mark Hodges, Yuping Huang, Andrea Isella, Daniel C. Jacobs, Ghislain Kemby, John T. Klinefelter, Matthew Kolopanis, James Lamb, Casey Law, Nivedita Mahesh, Surajit Mondal, Brian O’Donnell, Kathryn Plant, Corey Posner, Travis Powell, Vinand Prayag, Andres Rizo, Andrew Romero-Wolf, Jun Shi, Greg Taylor, Jordan Trim, Mike Virgin, Akshatha Vydula, Sandy Weinreb, Scott White, David Woody, Sijie Yu, Thomas Zentmeyer, Peijin Zhang, T. Joseph W. Lazio   +48 more
doaj   +1 more source

Rotational Doppler Cartography of Technosignatures on Unresolved Planets

The Astrophysical Journal
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 technosignatures across ...
Keitaro Takahashi
doaj   +1 more source

Fully fluorinated non-carbon compounds NF₃ and SF₆ as ideal technosignature gases. [PDF]

Sci Rep, 2023
Seager S, Petkowski JJ, Huang J, Zhan Z, Ravela S, Bains W.   +5 more
europepmc   +1 more source

Technosignature Searches with Real-time Alert Brokers

The Astronomical Journal
We present an exploration of technosignature research that is possible using real-time alert brokers from surveys such as the Zwicky Transient Facility (ZTF) and the upcoming Legacy Survey of Space and Time (LSST).
Eleanor M. Gallay, James R. A. Davenport, Steve Croft   +2 more
doaj   +1 more source

Searches for Technosignatures: The State of the Profession

, 2019
Submitted as an APC white paper to the Astro2020 Decadal ...
Wright, Jason, Allen, Veronica, Alvarado-Gómez, Julián D., Angerhausen, Daniel, Apai, Daniel, Atri, Dimitra, Balbi, Amedeo, Barclay, Thomas, Barentsen, Geert, Beasley, Tony, Beatty, Thomas, Behmard, Aida, Berea, Anamaria, Boyajian, Tabetha, Bridge, Joanna S., Bryson, Steve, Bytof, Jeff, Cleaves, Henderson, Colon, Knicole, Cordes, James, Cowing, Keith, Curtis, Jason, Davenport, James, Davies, Paul, Demarines, Julia, Denning, Kathryn, Dick, Steven, Dong, Chuanfei, Dutil, Yvan, Edmonds, Peter, Enriquez, Emilio, Eubanks, Marshall, Fernandez, Yan, Frank, Adam, de La Torre, Gabriel G., Gajjar, Vishal, Garrett, Michael, Gelino, Dawn, Geller, Harold, Giles, Daniel, Gillum, Eliot, Gomez, Jose L., Graham, R. J., Grimaldi, Claudio, Grinspoon, David, Haqq-Misra, Jacob, Hellbourg, Greg, Helman, Daniel, Horowitz, Paul, Howard, Andrew, Isaacson, Howard, Jackson, Albert, Jia, Tony Z., Kainu, Morgan, Kanodia, Shubham, Kawaler, Steven, Kendall, Shana, Khan, Afshin, Kipping, David, Kite, Edwin, Knuth, Kevin H., Kopparapu, Ravi, Korpela, Eric, Laine, Pauli, Lau, Graham, Lesyna, Larry, Loureiro, Rafael, Macdonald, Mariah, Margot, Jean-Luc, Mendez, Abel, Mishra, Amit, Morrison, Ian, Mullally, Susan, Mullan, Brendan, Nita, Gelu, O'Neil, Karen, Pass, Jim, Paulino-Lima, Ivan Glaucio, Piotelat, Elisabeth, Pope, Benjamin, Raymond, Sean N., Ricker, George, Riley, Crystal S., Robertson, Paul, Rocha, Graça, Rodriguez, Joseph, Rosenthal, Lee, Roy, Arpita, Rybarczyk, Daniel, de Souza, Rafael S., Sallmen, Shauna, Santander, Marcos, Scharf, Caleb, Schwieterman, Edward, Seiler, Douglas, Shabram, Megan, Sheikh, Sofia, Shostak, Seth, Shrestha, Pradipta, Siemion, Andrew, Sigurdsson, Steinn, Sneed, Evan, Socas-Navarro, Hector, Soderblom, David, Solmaz, Arif, Subramaniam, Sadasivan, Suresh, Akshay, Tan, Joshua, Tanner, Angelle, Tarter, Jill, Taylor, Stuart F., Terrien, Ryan, Turner, Jake D., Vakoch, Douglas, Villa, Ciro, Walkowicz, Lucianne, Wang, Sharon Xuesong, Weiss, Lauren, Werthimer, Dan, Williams, David, Winn, Joshua, Wishnow, Ed, Worden, Simon (pete), Wright, Shelley, Zackrisson, Erik, Zanis, Michael, Zarka, Philippe   +126 more
openaire   +4 more sources

Projections of Earth’s Technosphere: Strategies for Observing Technosignatures on Terrestrial Exoplanets

The Astrophysical Journal Letters
The search for technosignatures—remotely detectable evidence of extraterrestrial technology—draws upon examples from the recent history of Earth as well as projections of Earth’s technosphere.
Jacob Haqq-Misra, Ravi K. Kopparapu, George Profitiliotis   +2 more
doaj   +1 more source