11 papers
Gaia DR3 Limits on Stellar Engine Technosignatures in Nearby Stars
Bo-Lun Huang, Zhen-Zhao Tao, Tong-Jie Zhang +1
An operating stellar engine that transfers momentum to its host star could produce an approximately persistent transverse acceleration during the Gaia Data Release 3 (DR3) observin…
Periodic Radio Technosignature Search toward 3I/ATLAS with FAST
Jian-Kang Li, Zhen-Zhao Tao, Tong-Jie Zhang +1
3I/ATLAS, the third confirmed interstellar object discovered in the Solar System, provides a unique opportunity for targeted technosignature searches. We report a periodic radio te…
A Deep SETI Search for Technosignatures in the TRAPPIST-1 System with FAST
Guang-Yuan Song, Zhen-Zhao Tao, Bo-Lun Huang +3
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…
First Lunar Farside SETI Observations for Periodic Signals with the Low-frequency Radio Spectrometer of Chang'E-4 Mission
Jian-Kang Li, Zhen-Zhao Tao, Bo-Lun Huang +6
Chang'E-4 (CE4), the first mission to soft-land on the lunar farside, provides a unique opportunity for astronomical observations from an environment shielded from terrestrial radi…
WISE/CatWISE Constraints on Dysonian Waste-Heat Technosignatures in Nearby Galaxies
Bo-Lun Huang, Zhen-Zhao Tao, Tong-Jie Zhang
We search for galaxy-scale (Dysonian) waste heat in the mid-infrared using WISE. Starting from the 2MASS Redshift Survey (2MRS), we cross-match to CatWISE2020 and AllWISE, apply st…
SETI Observations of k-Hz Periodic Radio Signals from Five Nearby Stars with FAST at L Band
Yu Hu, Bo-Lun Huang, Vishal Gajjar +3
We report a radio SETI search for periodic, kHz-wide signals from five of the nearest stars observable with the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Using…