2023AJ....166...84A

Query : 2023AJ....166...84A

2023AJ....166...84A - Astron. J., 166, 84 (2023/September-0)

A VERITAS/Breakthrough Listen Search for Optical Technosignatures.

ACHARYYA A., ADAMS C.B., ARCHER A., BANGALE P., BATISTA P., BENBOW W., BRILL A., CAPASSO M., ERRANDO M., FALCONE A., FENG Q., FINLEY J.P., FOOTE G.M., FORTSON L., FURNISS A., GRIFFIN S., HANLON W., HANNA D., HERVET O., HINRICHS C.E., HOANG J., HOLDER J., HUMENSKY T.B., JIN W., KAARET P., KERTZMAN M., KHERLAKIAN M., KIEDA D., KLEINER T.K., KORZOUN N., KUMAR S., LANG M.J., LUNDY M., MAIER G., McGRATH C.E., MILLARD M.J., MILLER H.R., MILLIS J., MOONEY C.L., MORIARTY P., MUKHERJEE R., O'BRIEN S., ONG R.A., POHL M., PUESCHEL E., QUINN J., RAGAN K., REYNOLDS P.T., RIBEIRO D., ROACHE E., RYAN J.L., SADEH I., SAHA L., SANTANDER M., SEMBROSKI G.H., SHANG R., TAK D., TALLURI A.K., TUCCI J.V., VAZQUEZ N., WILLIAMS D.A., WONG S.L., WOO J. (The VERITAS Collaboration), DEBOER D., ISAACSON H., DE PATER I., PRICE D.C. and SIEMION A.

Abstract (from CDS):

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.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Technosignatures - Search for extraterrestrial intelligence - Gamma-ray telescopes - Transient detection

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 BD+01 2447 PM* 10 28 55.5512830314 +00 50 27.598904576 12.389 11.151 9.650 8.617 7.389 dM2 361 0
3 NGC 4551 GiP 12 35 37.9542692328 +12 15 50.284593432 13.49 12.97 12.02     ~ 371 1
4 BD+25 3173 PM* 16 58 08.8496107083 +25 44 38.974052855 12.342 11.139 9.655 8.685 7.602 M2V 273 1
5 HD 178126 PM* 19 07 02.0407765619 +07 36 57.153485718 11.243 10.297 9.215 8.559 7.996 K5V 76 0
6 GSC 03162-00665 Er* 20 06 15.4526521026 +44 27 24.790869158   12.82 12.01 11.75   F3V 159 0

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