The Breakthrough Listen Search for Intelligent Life: Technosignature Search of Transiting TESS Targets of Interest
Article
Article Title | The Breakthrough Listen Search for Intelligent Life: Technosignature Search of Transiting TESS Targets of Interest |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Franz, Noah, Croft, Steve, Siemion, Andrew P. V., Traas, Raffy, Brzycki, Bryan, Gajjar, Vishal, Isaacson, Howard, Lebofsky, Matthew, MacMahon, David H. E., Price, Danny C., Sheikh, Sofia Z., DeMarines, Julia and Drew, Jamie |
Journal Title | The Astronomical Journal |
Journal Citation | 163 (3) |
Article Number | 104 |
Number of Pages | 10 |
Year | 2022 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/ac46c9 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/ac46c9 |
Abstract | The Breakthrough Listen (BL) Initiative, as part of its larger mission, is performing the most thorough technosignature search of nearby stars. Additionally, BL is collaborating with scientists working on NASA's Transiting Exoplanet Survey Satellite (TESS) to examine TESS Targets of Interest (TOIs) for technosignatures. Here, we present a 1–11 GHz radio technosignature search of 61 TESS TOIs that were in transit during their BL observation at the Robert C. Byrd Green Bank Telescope. We performed a narrowband Doppler drift search with a minimum S/N threshold of 10 across a drift rate range of ±4 Hz s−1 with a resolution of 3 Hz. We removed radio frequency interference by comparing signals across cadences of target sources. After interference removal, there are no remaining events in our survey, and therefore no technosignature signals of interest detected in this work. This null result implies that at L, S, C, and X bands, fewer than 52%, 20%, 16%, and 15%, respectively, of TESS TOIs possess a transmitter with an equivalent isotropic radiated power greater than a few times 1014 W. |
Keywords | Search for extraterrestrial intelligence ; Exoplanets; Technosignatures; Radio astronomy ; Astrobiology |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 5101. Astronomical sciences |
Byline Affiliations | University of California, United States |
Siena College, United States | |
SETI Institute, United States | |
University of Malta | |
University of Wisconson - La Crosse, United States | |
Centre for Astrophysics | |
Curtin University | |
NASA Research Park, United States |
https://research.usq.edu.au/item/z01z4/the-breakthrough-listen-search-for-intelligent-life-technosignature-search-of-transiting-tess-targets-of-interest
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