The Canada-France-Hawaii telescope legacy survey: stacked images and catalogs

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DOIResolve DOI: http://doi.org/10.1088/0004-6256/143/2/38
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TypeArticle
Journal titleThe Astronomical Journal
ISSN0004-6256
Volume143
Issue2
Article number38
AbstractThis paper describes the image stacks and catalogs of the Canada-France-Hawaii Telescope Legacy Survey produced using the MegaPipe data pipeline at the Canadian Astronomy Data Centre. The Legacy Survey is divided into two parts. The Deep Survey consists of four fields each of 1 deg^2, with magnitude limits (50% completeness for point sources) of u = 27.5, g = 27.9, r = 27.7, i = 27.4, and z = 26.2. It contains 1.6 × 10^6 sources. The Wide Survey consists of 150 deg^2 split over four fields, with magnitude limits of u = 26.0, g = 26.5, r = 25.9, i = 25.7, and z = 24.6. It contains 3 × 10^7 sources. This paper describes the calibration, image stacking, and catalog generation process. The images and catalogs are available on the web through several interfaces: normal image and text file catalog downloads, a "Google Sky" interface, an image cutout service, and a catalog database query service. © 2012. National Research Council Canada. All rights reserved.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Herzberg Institute of Astrophysics
Peer reviewedYes
NPARC number21270242
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Record identifier6b5f5b31-81d7-4c2e-bab1-f0c5f8ad703a
Record created2014-01-16
Record modified2016-05-09
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