The Breakthrough Listen Search for Intelligent Life: Nearby Stars’ Close Encounters with the Brightest Earth Transmissions
Article
Derrick, Reilly and Isaacson, Howard. 2023. "The Breakthrough Listen Search for Intelligent Life: Nearby Stars’ Close Encounters with the Brightest Earth Transmissions." Publications of the Astronomical Society of the Pacific. 135 (1045). https://doi.org/10.1088/1538-3873/acc1a1
Article Title | The Breakthrough Listen Search for Intelligent Life: Nearby Stars’ Close Encounters with the Brightest Earth Transmissions |
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ERA Journal ID | 1082 |
Article Category | Article |
Authors | Derrick, Reilly and Isaacson, Howard |
Journal Title | Publications of the Astronomical Society of the Pacific |
Journal Citation | 135 (1045) |
Article Number | 034201 |
Number of Pages | 7 |
Year | 2023 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6280 |
1538-3873 | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1538-3873/acc1a1 |
Web Address (URL) | https://iopscience.iop.org/article/10.1088/1538-3873/acc1a1 |
Abstract | After having left the heliosphere, Voyager 1 and Voyager 2 continue to travel through interstellar space. The Pioneer 10, Pioneer 11, and New Horizons spacecraft are also on paths to pass the heliopause. These spacecraft have communicated with the Deep Station Network (DSN) radio antennas in order to download scientific data and telemetry data. Outward transmissions from DSN travel to the spacecraft and beyond into interstellar space. These transmissions have encountered and will encounter other stars, introducing the possibility that intelligent life in other solar systems will encounter our terrestrial transmissions. We use the beamwidth of the transmissions between DSN and interstellar spacecraft to perform a search around the past and future positions of each spacecraft obtained from the JPL Horizons System. By performing this search over the Gaia Catalogue of Nearby Stars, a catalog of precisely mapped stars within 100 pc, we determine which stars the transmissions of these spacecraft will encounter. We highlight stars that are in the background of DSN transmissions and calculate the dates of these encounters to determine the time and place for potential intelligent extraterrestrial life to encounter terrestrial transmissions. © 2023. The Astronomical Society of the Pacific. All rights reserved. |
Keywords | Deep space probes; Technosignatures; Star atlases |
ANZSRC Field of Research 2020 | 5101. Astronomical sciences |
Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
Byline Affiliations | University of California Los Angeles, United States |
St. Ignatius College Preparator, United States | |
University of California Berkeley, United States | |
Centre for Astrophysics |
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