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dc.contributor.authorDrew, JE
dc.contributor.authorGonzalez-solares, E
dc.contributor.authorGreimel, R
dc.contributor.authorIrwin, MJ
dc.contributor.authorKüpcü Yoldas, A
dc.contributor.authorLewis, J
dc.contributor.authorBarentsen, G
dc.contributor.authorEislöffel, J
dc.contributor.authorFarnhill, HJ
dc.contributor.authorMartin, WE
dc.contributor.authorWalsh, JR
dc.contributor.authorWalton, NA
dc.contributor.authorMohr-Smith, M
dc.contributor.authorRaddi, R
dc.contributor.authorSale, SE
dc.contributor.authorWright, NJ
dc.contributor.authorGroot, P
dc.contributor.authorBarlow, MJ
dc.contributor.authorCorradi, RLM
dc.contributor.authorDrake, JJ
dc.contributor.authorFabregat, J
dc.contributor.authorFrew, DJ
dc.contributor.authorGänsicke, BT
dc.contributor.authorKnigge, C
dc.contributor.authorMampaso, A
dc.contributor.authorMorris, RAH
dc.contributor.authorNaylor, T
dc.contributor.authorParker, QA
dc.contributor.authorPhillipps, S
dc.contributor.authorRuhland, C
dc.contributor.authorSteeghs, D
dc.contributor.authorUnruh, YC
dc.contributor.authorVink, JS
dc.contributor.authorWesson, R
dc.contributor.authorZijlstra, AA
dc.date.accessioned2016-06-14T14:57:01Z
dc.date.issued2014-04-02
dc.description.abstractThe VST Photometric Hα Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Hα at ~1 arcsec angular resolution. Its footprint spans the Galactic latitude range -5o < b < +5° at all longitudes south of the celestial equator. Extensions around the Galactic Centre to Galactic latitudes ±10° bring in much of the Galactic bulge. This European Southern Observatory public survey, begun on 2011 December 28, reaches down to ~20th magnitude (10σ) and will provide single-epoch digital optical photometry for ~300 million stars. The observing strategy and data pipelining are described, and an appraisal of the segmented narrow-band Hα filter in use is presented. Using model atmospheres and library spectra, we compute main-sequence (u - g), (g - r), (r - i) and (r - Hα) stellar colours in the Vega system. We report on a preliminary validation of the photometry using test data obtained from two pointings overlapping the Sloan Digital Sky Survey. An example of the (u - g, g - r) and (r - Hα, r - i) diagrams for a full VPHAS+ survey field is given. Attention is drawn to the opportunities for studies of compact nebulae and nebular morphologies that arise from the image quality being achieved. The value of the u band as the means to identify planetary-nebula central stars is demonstrated by the discovery of the central star of NGC 2899 in survey data. Thanks to its excellent imaging performance, the VLT Survey Telescope (VST)/OmegaCam combination used by this survey is a perfect vehicle for automated searches for reddened early-type stars, and will allow the discovery and analysis of compact binaries, white dwarfs and transient sources. © The Authors 2014. Published by Oxford University Press on behalf of The Royal Astronomical Society.en_GB
dc.description.sponsorshipJED and GB acknowledge the support of a grant from the Science & Technology Facilities Council of the UK (STFC, ref ST/J001335/1). The research leading to these results has also benefitted from funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007- 2013)/ERC Grant Agreement n. 320964 (WDTracer). BTG was also supported in part by the UK STFC (ST/I001719/1). RLMC and AMR acknowledge funding from the Spanish AYA2007-66804 and AYA2012-35330 grants. HJF and MM-S both acknowledge STFC postgraduate studentships. NJW is in receipt of a Royal Astronomical Society Fellowship. RW acknowledges funding from the Marie Curie Actions of the European Commission (FP7-COFUND).en_GB
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2014, Vol. 440, Issue 3, pp. 2036 - 2058en_GB
dc.identifier.doi10.1093/mnras/stu394
dc.identifier.urihttp://hdl.handle.net/10871/22095
dc.language.isoenen_GB
dc.publisherOxford University Pressen_GB
dc.rightsThis is the final version of the article. Available from Oxford University Press via the DOI in this record.en_GB
dc.titleThe VST photometric hα survey of the Southern Galactic Plane and Bulge (VPHAS+)en_GB
dc.typeArticleen_GB
dc.date.available2016-06-14T14:57:01Z
dc.identifier.issn0035-8711
dc.identifier.journalMonthly Notices of the Royal Astronomical Societyen_GB


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