Acharyya, A. and Adams, C. B. and Archer, A. and Bangale, P. and Batista, P. and Benbow, W. and Brill, A. and Capasso, M. and Errando, M. and Falcone, A. and Feng, Q. and Finley, J. P. and Foote, G. M. and Fortson, L. and Furniss, A. and Griffin, S. and Hanlon, W. and Hanna, D. and Hervet, O. and Hinrichs, C. E. and Hoang, J. and Holder, J. and Humensky, T. B. and Jin, W. and Kaaret, P. and Kertzman, M. and Kherlakian, M. and Kieda, D. and Kleiner, T. K. and Korzoun, N. and Kumar, S. and Lang, M. J. and Lundy, M. and Maier, G. and McGrath, C. E. and Millard, M. J. and Miller, H. R. and Millis, J. and Mooney, C. L. and Moriarty, P. and Mukherjee, R. and O’Brien, S. and Ong, R. A. and Pohl, M. and Pueschel, E. and Quinn, J. and Ragan, K. and Reynolds, P. T. and Ribeiro, D. and Roache, E. and Ryan, J. L. and Sadeh, I. and Saha, L. and Santander, M. and Sembroski, G. H. and Shang, R. and Tak, D. and Talluri, A. K. and Tucci, J. V. and Vazquez, N. and Williams, D. A. and Wong, S. L. and Woo, J. and DeBoer, D. and Isaacson, H. and de Pater, I. and Price, D. C. and Siemion, A. (2023) A VERITAS/Breakthrough Listen Search for Optical Technosignatures. The Astronomical Journal, 166 (3). p. 84. ISSN 0004-6256
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Abstract
The Breakthrough Listen Initiative is conducting a program using multiple telescopes around the world to search for "technosignatures": artificial transmitters of extraterrestrial origin from beyond our solar system. The Very Energetic Radiation Imaging Telescope Array System (VERITAS) Collaboration joined this program in 2018 and provides the capability to search for one particular technosignature: optical pulses of a few nanoseconds in duration detectable over interstellar distances. We report here on the analysis and results of dedicated VERITAS observations of Breakthrough Listen targets conducted in 2019 and 2020 and of archival VERITAS data collected since 2012. Thirty hours of dedicated observations of 136 targets and 249 archival observations of 140 targets were analyzed and did not reveal any signals consistent with a technosignature. The results are used to place limits on the fraction of stars hosting transmitting civilizations. We also discuss the minimum pulse sensitivity of our observations and present VERITAS observations of CALIOP: a space-based pulsed laser on board the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations. The detection of these pulses with VERITAS, using the analysis techniques developed for our technosignature search, allows a test of our analysis efficiency and serves as an important proof of principle.
| Item Type: | Article |
|---|---|
| Subjects: | Asian STM > Physics and Astronomy |
| Depositing User: | Managing Editor |
| Date Deposited: | 15 Nov 2023 07:23 |
| Last Modified: | 15 Nov 2023 07:23 |
| URI: | http://journal.send2sub.com/id/eprint/2689 |
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