The VMC survey: I. strategy and first data

dc.contributor.authorCioni, M- R L
dc.contributor.authorClementini, G
dc.contributor.authorGirardi, L
dc.contributor.authorGuandalini, R
dc.contributor.authorGullieuszik, M
dc.contributor.authorMiszalski, B
dc.contributor.authorMoretti, M-I
dc.contributor.authorRipepi, V
dc.contributor.authorRubele, S
dc.contributor.authorBagheri, G
dc.contributor.authorBekki, K
dc.contributor.authorCross, N
dc.contributor.authorde Blok, W J G
dc.contributor.authorde Grijs, R
dc.contributor.authorEmerson, J P
dc.contributor.authorEvans, C J
dc.contributor.authorGibson, B
dc.contributor.authorGonzales-Solares, E
dc.contributor.authorGroenewegen, M A T
dc.contributor.authorIrwin, M
dc.contributor.authorIvanov, V D
dc.contributor.authorLewis, J
dc.contributor.authorMarconi, M
dc.contributor.authorMarquette, J-B
dc.contributor.authorMastropietro, C
dc.contributor.authorMoore, B
dc.contributor.authorNapiwotzki, R
dc.contributor.authorNaylor, T
dc.contributor.authorOliveira, J M
dc.contributor.authorRead, M
dc.contributor.authorSutorius, E
dc.contributor.authorvan Loon, J Th
dc.date.accessioned2021-10-08T11:01:06Z
dc.date.available2021-10-08T11:01:06Z
dc.date.issued2011
dc.description.abstractContext. The new VISual and Infrared Telescope for Astronomy (VISTA) has started operations. Over its first five years it will be collecting data for six public surveys, one of which is the near-infrared YJK(s) VISTA survey of the Magellanic Clouds system (VMC). This survey comprises the Large Magellanic Cloud (LMC), the Small Magellanic Cloud, the Magellanic Bridge connecting the two galaxies and two fields in the Magellanic Stream. Aims. This paper provides an overview of the VMC survey strategy and presents first science results. The main goals of the VMC survey are the determination of the spatially-resolved star-formation history and the three-dimensional structure of the Magellanic system. The VMC survey is therefore designed to reach stars as faint as the oldest main sequence turn-off point and to constrain the mean magnitude of pulsating variables such as RR Lyrae stars and Cepheids. This paper focuses on observations of VMC fields in the LMC obtained between November 2009 and March 2010. These observations correspond to a completeness of 7% of the planned LMC fields. Methods. The VMC data are comprised of multi-epoch observations which are executed following specific time constraints. The data were reduced using the VISTA Data Flow System pipeline with source catalogues, including astrometric and photometric corrections, produced and made available via the VISTA Science Archive. The VMC data will be released to the astronomical community following the European Southern Observatorys Public Survey policy. The analysis of the data shows that the sensitivity in each wave band agrees with expectations. Uncertainties and completeness of the data are also derived. Results. The first science results, aimed at assessing the scientific quality of the VMC data, include an overview of the distribution of stars in colour-magnitude and colour-colour diagrams, the detection of planetary nebulae and stellar clusters, and the K-s band light-curves of variable stars. Conclusions. The VMC survey represents a tremendous improvement, in spatial resolution and sensitivity, on previous panoramic observations of the Magellanic system in the near-infrared, providing a powerful complement to deep observations at other wavelengths.
dc.identifier.apacitationCioni, M. R. L., Clementini, G., Girardi, L., Guandalini, R., Gullieuszik, M., Miszalski, B., ... van Loon, J. T. (2011). The VMC survey: I. strategy and first data. <i>Astronomy and Astrophysics</i>, 527(4), A116 - 177. http://hdl.handle.net/11427/35085en_ZA
dc.identifier.chicagocitationCioni, M- R L, G Clementini, L Girardi, R Guandalini, M Gullieuszik, B Miszalski, M-I Moretti, et al "The VMC survey: I. strategy and first data." <i>Astronomy and Astrophysics</i> 527, 4. (2011): A116 - 177. http://hdl.handle.net/11427/35085en_ZA
dc.identifier.citationCioni, M.R.L., Clementini, G., Girardi, L., Guandalini, R., Gullieuszik, M., Miszalski, B., Moretti, M. & Ripepi, V. et al. 2011. The VMC survey: I. strategy and first data. <i>Astronomy and Astrophysics.</i> 527(4):A116 - 177. http://hdl.handle.net/11427/35085en_ZA
dc.identifier.issn0004-6361
dc.identifier.issn1432-0746
dc.identifier.ris TY - Journal Article AU - Cioni, M- R L AU - Clementini, G AU - Girardi, L AU - Guandalini, R AU - Gullieuszik, M AU - Miszalski, B AU - Moretti, M-I AU - Ripepi, V AU - Rubele, S AU - Bagheri, G AU - Bekki, K AU - Cross, N AU - de Blok, W J G AU - de Grijs, R AU - Emerson, J P AU - Evans, C J AU - Gibson, B AU - Gonzales-Solares, E AU - Groenewegen, M A T AU - Irwin, M AU - Ivanov, V D AU - Lewis, J AU - Marconi, M AU - Marquette, J-B AU - Mastropietro, C AU - Moore, B AU - Napiwotzki, R AU - Naylor, T AU - Oliveira, J M AU - Read, M AU - Sutorius, E AU - van Loon, J Th AB - Context. The new VISual and Infrared Telescope for Astronomy (VISTA) has started operations. Over its first five years it will be collecting data for six public surveys, one of which is the near-infrared YJK(s) VISTA survey of the Magellanic Clouds system (VMC). This survey comprises the Large Magellanic Cloud (LMC), the Small Magellanic Cloud, the Magellanic Bridge connecting the two galaxies and two fields in the Magellanic Stream. Aims. This paper provides an overview of the VMC survey strategy and presents first science results. The main goals of the VMC survey are the determination of the spatially-resolved star-formation history and the three-dimensional structure of the Magellanic system. The VMC survey is therefore designed to reach stars as faint as the oldest main sequence turn-off point and to constrain the mean magnitude of pulsating variables such as RR Lyrae stars and Cepheids. This paper focuses on observations of VMC fields in the LMC obtained between November 2009 and March 2010. These observations correspond to a completeness of 7% of the planned LMC fields. Methods. The VMC data are comprised of multi-epoch observations which are executed following specific time constraints. The data were reduced using the VISTA Data Flow System pipeline with source catalogues, including astrometric and photometric corrections, produced and made available via the VISTA Science Archive. The VMC data will be released to the astronomical community following the European Southern Observatorys Public Survey policy. The analysis of the data shows that the sensitivity in each wave band agrees with expectations. Uncertainties and completeness of the data are also derived. Results. The first science results, aimed at assessing the scientific quality of the VMC data, include an overview of the distribution of stars in colour-magnitude and colour-colour diagrams, the detection of planetary nebulae and stellar clusters, and the K-s band light-curves of variable stars. Conclusions. The VMC survey represents a tremendous improvement, in spatial resolution and sensitivity, on previous panoramic observations of the Magellanic system in the near-infrared, providing a powerful complement to deep observations at other wavelengths. DA - 2011 DB - OpenUCT DP - University of Cape Town IS - 4 J1 - Astronomy and Astrophysics LK - https://open.uct.ac.za PY - 2011 SM - 0004-6361 SM - 1432-0746 T1 - The VMC survey: I. strategy and first data TI - The VMC survey: I. strategy and first data UR - http://hdl.handle.net/11427/35085 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/35085
dc.identifier.vancouvercitationCioni MRL, Clementini G, Girardi L, Guandalini R, Gullieuszik M, Miszalski B, et al. The VMC survey: I. strategy and first data. Astronomy and Astrophysics. 2011;527(4):A116 - 177. http://hdl.handle.net/11427/35085.en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Astronomy
dc.publisher.facultyFaculty of Science
dc.sourceAstronomy and Astrophysics
dc.source.journalissue4
dc.source.journalvolume527
dc.source.paginationA116 - 177
dc.source.urihttps://dx.doi.org/10.1051/0004-6361/201016137
dc.subject.othermagellanic clouds
dc.subject.otherinfrared: stars
dc.subject.otherstars: variables: Cepheids
dc.subject.otherstars: variables: RR Lyrae
dc.subject.otherHertzsprung-Russell and C-M diagrams
dc.subject.othersurvey
dc.titleThe VMC survey: I. strategy and first data
dc.typeJournal Article
uct.type.publicationResearch
uct.type.resourceJournal Article
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