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The VVV Survey is an ESO public survey scanning the Milky Way bulge and adjacent section of the southern mid-plane in the near-infrared. This area, is active in star formation and very rich in dust and interstellar gas, which makes it very impossible to see through in the visible as the extinction and crowding are high. There are though, some ‘clear windows’ thought the whole survey area, where optical surveys can be carried out, like MACHO, OGLE and EROS. == The VVV Survey == With the advanced VISTA 4-metre telescope in Paranal, the VVV Survey has been conducting it’s 1929 hours of observations over 520 sq. deg. since 2010, systematically making the survey area for multiple epochs. The known catalogue by 2010 was about 10^9 point sources, including 33 known globular clusters and ~350 open clusters. The final product of the VVV Survey will be a deep near-IR atlas in five passbands and a catalogue of more than a million variable point sources. For a complete understanding of the variable sources in the Milky Way, the observations will be combined with data from MACHO, OGLE, EROS, VST, Spitzer, HST, Chandra, INTEGRAL, WISE, Fermi lAT, XMM-Newton, GAIA and ALMA. As a public survey, the VVV provides data available to the whole community and enable further studies of the history of the Milky Way, its globular cluster evolution and the popularion census of the Galactic Bulge, as well as the investigation of the star forming regions in the disk. The data releases are done by VSA in Edinburgh. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「VVV Survey」の詳細全文を読む スポンサード リンク
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