cc-bySaitoRK HempelM Alonso-GarcíaJ LucasPW MinnitiD AlonsoS BaravalleL BorissovaJ CaceresC ChenéAN CrossNJG DuplancicF GarroER GómezM IvanovVD KurtevR LunaA MajaessD NavarroMG PullenJB RejkubaM SandersJL SmithLC AlbinoPHC AlonsoMV AmôresEB AngeloniR AriasJI ArnaboldiM BarbuyB BayoA BeaminJC BedinLR BelliniA BenjaminRA BicaE BonattoCJ BotanE BragaVF BrownDA CabralJB CamargoD GarattiACO Carballo-BelloJA CatelanM ChaveroC ChijaniMA ClariáJJ ColdwellGV PeñaCC RamosRC Corral-SantanaJM CortésCC Cortés-ContrerasM CruzP Daza-PerillaIV DebattistaVP DiasB DonosoL D'SouzaR EmersonJP FederleS FermianoV FernandezJ Fernández-TrincadoJG FerreiraT LopesCEF FirpoV Flores-QuintanaC FragaL FroebrichD GaldeanoD GavignaudI GeislerD GerhardOE GierenW GonzalezOA GramajoLV GranF GranittoPM GriggioM GuoZ GurovichS HilkerM JonesHRA KammersR KuhnMA KumarMSN KunduR LaresM LibralatoM LimaE MaccaroneTJ CortésPM MartinEL MasettiN MatsunagaN MauroF McDonaldI MejíasA MesaV Milla-CastroFP MinnitiJH BidinCM MontenegroK MorrisC MottaV NavareteF MolinaCN NikzatF CastellónJLN ObasiC Ortigoza-UrdanetaM PalmaT ParisiC RamírezKP PereyraL PerezN PetraliaI PichelA PignataG AlegríaSR RojasAF RojasD Roman-LopesA RoveroAC SaroonS SchmidtEO SchröderAC SchultheisM SgróMA SolanoE SotoM StecklumB SteeghsD TamuraM TisseraP ValcarceAAR ValottoCA VasquezS VillalonC VillanovaS CádizFV BacigalupoRZ ZijlstraA ZoccaliCarlos Ferreira LopesORTIGOZA URDANETA MARIO SEGUNDOSOTO VICENCIO MARIO HUMBERTO2025-06-052025-06-0520240004-6361https://hdl.handle.net/20.500.12740/22690Context. The ESO public survey VISTA Variables in the Via Lactea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from 2009-2015. Upon its conclusion, the complementary VVV extended (VVVX) survey has expanded both the temporal as well as spatial coverage of the original VVV area, widening it from 562 to 1700 sq. deg., as well as providing additional epochs in JHKs filters from 2016-2023. Aims. With the completion of VVVX observations during the first semester of 2023, we present here the observing strategy, a description of data quality and access, and the legacy of VVVX. Methods. VVVX took similar to 2000 h, covering about 4% of the sky in the bulge and southern disk. VVVX covered most of the gaps left between the VVV and the VISTA Hemisphere Survey (VHS) areas and extended the VVV time baseline in the obscured regions affected by high extinction and hence hidden from optical observations. Results. VVVX provides a deep JHKs catalogue of greater than or similar to 1.5 x 10(9) point sources, as well as a Ks band catalogue of similar to 10(7) variable sources. Within the existing VVV area, we produced a 5D map of the surveyed region by combining positions, distances, and proper motions of well-understood distance indicators such as red clump stars, RR Lyrae, and Cepheid variables. Conclusions. In March 2023 we successfully finished the VVVX survey observations that started in 2016, an accomplishment for ESO Paranal Observatory upon 4200 h of observations for VVV+VVVX. The VVV+VVVX catalogues complement those from the Gaia mission at low Galactic latitudes and provide spectroscopic targets for the forthcoming ESO high-multiplex spectrographs MOONS and 4MOST. C1 [Saito, R. K.; Minniti, D.; Albino, P. H. C.; Fermiano, V.; Kammers, R.] Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil. [Hempel, M.; Minniti, D.; Caceres, C.; Gomez, M.; Pullen, J. B.; Beamin, J. 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C3 Universidade Federal de Santa Catarina (UFSC); Universidad Andres Bello; Max Planck Society; Universidad de Antofagasta; University of Hertfordshire; Vatican Observatory; Universidad Nacional de San Juan; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); National University of Cordoba; Universidad de Valparaiso; University of Edinburgh; European Southern Observatory; European Southern Observatory; Istituto Nazionale Astrofisica (INAF); Mount Saint Vincent University; Istituto Nazionale Astrofisica (INAF); University of London; University College London; University of Cambridge; Universidade Estadual de Feira de Santana; Universidad de La Serena; Universidade de Sao Paulo; University of Padua; Space Telescope Science Institute; University of Wisconsin System; University of Wisconsin Whitewater; Universidade Federal do Rio Grande do Sul; Universidade Federal de Mato Grosso; Vatican Observatory; Universidad de Tarapaca; Pontificia Universidad Catolica de Chile; Pontificia Universidad Catolica de Chile; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); Seoul National University (SNU); Seoul National University (SNU); Universidad de Talca; Complutense University of Madrid; Complutense University of Madrid; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Centro de Astrobiologia (INTA); National University of Cordoba; University of Central Lancashire; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); University of London; Queen Mary University London; Universidad Catolica del Norte; Yale University; Universidad de Atacama; University of Kent; Universidad de Concepcion; Universidad de La Serena; Max Planck Society; University of Edinburgh; Centre National de la Recherche Scientifique (CNRS); Universite Cote d'Azur; Observatoire de la Cote d'Azur; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); National University of Rosario; University of Ferrara; Western Sydney University; Universidade do Porto; University of Delhi; Inter-University Centre for Astronomy & Astrophysics; Universidade Federal do Pampa; Texas Tech University System; Texas Tech University; Instituto de Astrofisica de Canarias; Universidad de la Laguna; Istituto Nazionale Astrofisica (INAF); University of Tokyo; University of Manchester; Jodrell Bank Centre for Astrophysics; Universidad de Chile; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); Johns Hopkins University; Universidad de los Andes - Chile; Universidad Austral de Chile; University of Nigeria; Universidad de Atacama; Instituto de Astronomia y Fisica del Espacio (IAFE); University of Buenos Aires; Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); University Diego Portales; Max Planck Society; University of Warwick; National Institutes of Natural Sciences (NINS) - Japan; Astrobiology Center (ABC); National Institutes of Natural Sciences (NINS) - Japan; National Astronomical Observatory of Japan (NAOJ); Universidad de Tarapaca; Macquarie Universityinfo:eu-repo/semantics/openAccesssurveysGalaxy: bulgeGalaxy: diskGalaxy: stellar contentinfrared: starsAstronomy & AstrophysicsArticulo de revista10.1051/0004-6361/202450584