Astrobiology; Technosignatures; Search for extraterrestrial; intelligence; 74; 2128; 2127
Abstract :
[en] If alien probes have colonized the whole galaxy, they could have formed an efficient galactic-scale communication network by establishing direct gravitationally lensed links between neighboring systems. Under this scenario, observing the positions opposite the nearest ecliptic stars represents a promising artifact SETI strategy that could make it possible to "eavesdrop" on the emission of local probes to one of these stars. In this context, we present here a first attempt to detect optical messages emitted from the solar system to the ecliptic star Wolf 359, the third-nearest stellar system, based on observations gathered by the TRAPPIST-South and SPECULOOS-South robotic telescopes. While sensitive enough to detect constant emission with emitting power as small as a few watts, this search led to a null result. We note that the putative alien probes could be emitting "off-axis" and be located much closer to the Sun than the start of the "solar gravitational line" at 550 au. We performed a search for such an off-axis emitter in our data, whose result turned out negative too.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO)
Burdanov, Artem; MIT, Department of Earth and Planetary Science
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Bibliography
Burdanov A. Delrez L. Gillon M. Jehin E. 2018 Handbook of Exoplanets Deeg H. J. Belmonte J. A. Berlin Springer 130 2018haex.bookE.130B
Cochran A. L. Levison H. F. Stern S. A. Duncan M. J. 1995 ApJ 455 342 1995ApJ...455..342C 10.1086/176581
Delrez L. Gillon M. Queloz D. 2018 Proc. SPIE 10700 107001I 2018SPIE10700E..1ID 10.1117/12.2312475
Freitas R. A. 1980 JBIS 33 251 1980JBIS...33..251F
Gaia Collaboration Brown A. G. A. Vallenari A. 2021 A&A 649 A1 2021A&A...649A...1G 10.1051/0004-6361/202039657
Galea P. Swinney R. 2011 JBIS 64 24 2011JBIS...64...24G
Gertz J. 2018 JBIS 71 375 2018JBIS...71..375G
Gertz J. 2021 JBIS 71 427
Gillon M. 2014 AcAau 94 629 2014AcAau..94..629G 10.1016/j.actaastro.2013.09.009
Gillon M. 2018 NatAs 2 344 2018NatAs...2..344G 10.1038/s41550-018-0443-y
Gillon M. Jehin E. Magain P. 2011 EPJ Web Conf. 11 06002 2011EPJWC..1106002G 10.1051/epjconf/20101106002
Hippke M. 2020a arXiv: 2009.01866 2020arXiv200901866H
Hippke M. 2020b AJ 159 85 2020AJ....159...85H 10.3847/1538-3881/ab5dca
Hippke M. 2021 arXiv: 2104.09564 2021arXiv210409564H
Horowitz P. Coldwell C. M. Howard A. B. 2001 Proc. SPIE 4273 119 2001SPIE.4273..119H 10.1117/12.435364
Jehin E. Gillon M. Queloz D. 2011 Msngr 145 2 2011Msngr.145....2J
Jehin E. Gillon M. Queloz D. 2018 Msngr 174 2 2018Msngr.174....2J 10.18727/0722-6691/5105
Jenkins J. S. Ramsey L. W. Jones H. R. A. 2009 ApJ 704 975 2009ApJ...704..975J 10.1088/0004-637X/704/2/975
Kaltenegger L. Faherty J. K. 2021 Natur 594 505 2021Natur.594..505K 10.1038/s41586-021-03596-y
Kerby S. Wright J. T. 2021 AJ 162 252 2021AJ....162..252K 10.3847/1538-3881/ac2820
Maccone C. 1994 JBIS 47 45 1994JBIS...47...45M
Maccone C. 2013 AcAau 82 246 2013AcAau..82..246M 10.1016/j.actaastro.2012.07.015
Maccone C. 2014 AcAau 104 458 2014AcAau.104..458M 10.1016/j.actaastro.2014.03.008
Marcy G. W. Tellis N. K. Wishnow E. H. 2022 MNRAS 509 3798 2022MNRAS.509.3798M 10.1093/mnras/stab3074
Sebastian D. Gillon M. Ducrot E. 2021 A&A 645 A100 2021A&A...645A.100S 10.1051/0004-6361/202038827
Shao M. Nemati B. Zhai C. 2014 ApJ 782 1 2014ApJ...782....1S 10.1088/0004-637X/782/1/1
Stetson P. B. 1987 PASP 99 191 1987PASP...99..191S 10.1086/131977
Svelto O. 2010 Principles of Laser 5th edn. Berlin Springer
Tarter J. 2001 ARA&A 39 511 2001ARA&A..39..511T 10.1146/annurev.astro.39.1.511
Turryshev S. G. Anderson B.-G. 2003 MNRAS 341 577 2003MNRAS.341..577T 10.1046/j.1365-8711.2003.06428.x
Valdes F. Freitas R. A. 1980 JBIS 33 402 1980JBIS...33..402V
von Eshleman R. 1979 Sci 205 1133 1979Sci...205.1133E 10.1126/science.205.4411.1133
Winn J. N. 2011 Exoplanets Seager S. Tucson, AZ Univ. Arizona Press 55
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