2024A&A...689A.148S

Query : 2024A&A...689A.148S

2024A&A...689A.148S - Astronomy and Astrophysics, volume 689A148 (2024/9-1)

The VISTA Variables in the Vía Láctea extended (VVVX) ESO public survey: Completion of the observations and legacy.

SAITO R.K., HEMPEL M., ALONSO-GARCIA J., LUCAS P.W., MINNITI D., ALONSO S., BARAVALLE L., BORISSOVA J., CACERES C., CHENE A.N., CROSS N.J.G., DUPLANCIC F., GARRO E.R., GOMEZ M., IVANOV V.D., KURTEV R., LUNA A., MAJAESS D., NAVARRO M.G., PULLEN J.B., REJKUBA M., SANDERS J.L., SMITH L.C., ALBINO P.H.C., ALONSO M.V., AMORES E.B., ANGELONI R., ARIAS J.I., ARNABOLDI M., BARBUY B., BAYO A., BEAMIN J.C., BEDIN L.R., BELLINI A., BENJAMIN R.A., BICA E., BONATTO C.J., BOTAN E., BRAGA V.F., BROWN D.A., CABRAL J.B., CAMARGO D., CARATTI O GARATTI A., CARBALLO-BELLO J.A., CATELAN M., CHAVERO C., CHIJANI M.A., CLARIA J.J., COLDWELL G.V., PENA C.C., RAMOS R.C., CORRAL-SANTANA J.M., CORTES C.C., CORTES-CONTRERAS M., CRUZ P., DAZA-PERILLA I.V., DEBATTISTA V.P., DIAS B., DONOSO L., D'SOUZA R., EMERSON J.P., FEDERLE S., FERMIANO V., FERNANDEZ J., FERNANDEZ-TRINCADO J.G., FERREIRA T., LOPES C.E.F., FIRPO V., FLORES-QUINTANA C., FRAGA L., FROEBRICH D., GALDEANO D., GAVIGNAUD I., GEISLER D., GERHARD O.E., GIEREN W., GONZALEZ O.A., GRAMAJO L.V., GRAN F., GRANITTO P.M., GRIGGIO M., GUO Z., GUROVICH S., HILKER M., JONES H.R.A., KAMMERS R., KUHN M.A., KUMAR M.S.N., KUNDU R., LARES M., LIBRALATO M., LIMA E., MACCARONE T.J., CORTES P.M., MARTIN E.L., MASETTI N., MATSUNAGA N., MAURO F., McDONALD I., MEJIAS A., MESA V., MILLA-CASTRO F.P., MINNITI J.H., BIDIN C.M., MONTENEGRO K., MORRIS C., MOTTA V., NAVARETE F., MOLINA C.N., NIKZAT F., NILO CASTELLON J.L., OBASI C., ORTIGOZA-URDANETA M., PALMA T., PARISI C., RAMIREZ K.P., PEREYRA L., PEREZ N., PETRALIA I., PICHEL A., PIGNATA G., ALEGRIA S.R., ROJAS A.F., ROJAS D., ROMAN-LOPES A., ROVERO A.C., SAROON S., SCHMIDT E.O., SCHRODER A.C., SCHULTHEIS M., SGRO M.A., SOLANO E., SOTO M., STECKLUM B., STEEGHS D., TAMURA M., TISSERA P., VALCARCE A.A.R., VALOTTO C.A., VASQUEZ S., VILLALON C., VILLANOVA S., CADIZ F.V., ZELADA BACIGALUPO R., ZIJLSTRA A. and ZOCCALI M.

Abstract (from CDS):

Context. The ESO public survey VISTA Variables in the Vía Láctea (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 ∼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 ≳1.5 × 109 point sources, as well as a Ks band catalogue of ∼107 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.

Abstract Copyright: © The Authors 2024

Journal keyword(s): surveys - Galaxy: bulge - Galaxy: disk - Galaxy: stellar content - infrared: stars

VizieR on-line data: <Available at CDS (J/A+A/689/A148): tablea1.dat>

Simbad objects: 13

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Number of rows : 13
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 OGLE GD-RRLYR-1617 RR* 10 28 07.8411172053 -58 43 50.537384950         16.292 ~ 5 0
2 OGLE GD-RRLYR-1637 RR* 10 30 22.4979599856 -58 37 46.956796680         13.940 ~ 8 0
3 NGC 3324 OpC 10 37 20.8 -58 37 26           ~ 145 1
4 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
5 NAME Lower Centaurus Crux As* 12 19 -57.1           ~ 565 1
6 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
7 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1331 1
8 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
9 2MASS J17172029-3608438 Y*? 17 17 20.29104 -36 08 43.8684           ~ 3 0
10 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
11 NAME Baade Window reg 18 03.5 -30 01           ~ 643 3
12 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
13 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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