J/A+A/689/A148 VVVX tile coordinates (Saito+, 2024)
The VISTA Variables in the Via Lactea 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., Castellon J.L.N., 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., Bacigalupo R.Z., Zijlstra A., Zoccali M.
<Astron. Astrophys. 689, A148 (2024)>
=2024A&A...689A.148S 2024A&A...689A.148S (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Positional data ; Optical
Keywords: surveys - Galaxy: bulge - Galaxy: disk - Galaxy: stellar content -
infrared: stars
Abstract:
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.
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.
VVVX took ∼2000h, 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.
VVVX provides a deep JHKs catalogue of ≳1.5x109 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.
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.
Description:
The VVVX observations were carried out with Visible and Infrared
Survey Telescope for Astronomy (VISTA), an ESO telescope located at
the Cerro Paranal Observatory in the Atacama Desert, northern Chile.
The VVV survey observed ∼562 sq deg in the MW bulge and the adjacent
southern Galactic plane. The area was divided in bulge, with ∼300 sq.
deg. within -10.0°≲l≲+10.4° and -10.3°≲b≲+5.1°,
hereafter called "VVV Bulge", and ∼220 sq. deg. within
294.7°≲l≲350° and -2.25°≲b≲+2.25°, hereafter "VVV
Disk". For the VVV Disk there is a total of 38x4=152 tiles while the
VVV Bulge is filled up by 14x14=196 tiles. The tile sides are aligned
with the Galactic coordinates for coverage optimisation.
Table A1 list the tile centre coordinates for all VVV and VVVX
pointing. There is a total of 1028 tiles, divided into 348 for the
original VVV area and 680 tiles for VVVX. For the original and
extended bulge area tiles, names start with 'b'. Inner disk tiles
in the original and extended area start with 'd', while for the
low and high disk, as well as to disk to longitude +20 names start
with 'e'.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 85 1028 VVVX tile coordinates and observations
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Tile Tile name
7- 8 I2 h RAh Right ascension (J2000.0)
10- 11 I2 min RAm Right ascension (J2000.0)
13- 17 F5.2 s RAs Right ascension (J2000.0)
19 A1 --- DE- Declination sign (J2000.0)
20- 21 I2 deg DEd Declination (J2000.0)
23- 24 I2 arcmin DEm Declination (J2000.0)
26- 29 F4.1 arcsec DEs Declination (J2000.0)
31- 41 F11.6 deg GLON [] Galactic longitude
43- 52 F10.6 deg GLAT Galactic latitude
54- 55 I2 --- Jepochs Total number of J epochs
57- 62 A6 --- n_Jepochs Number of J epochs in VVV + VVVX
64- 65 I2 --- Hepochs Total number of H epochs
67- 72 A6 --- n_Hepochs Number of H epochs in VVV + VVVX
74- 76 I3 --- Kepochs Total number of K epochs
78- 85 A8 --- n_Kepochs Number of K epochs in VVV + VVVX
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 20-Feb-2025