SMASH: survey of the MAgellanic Stellar history
The Large and Small Magellanic Clouds are unique local laboratories for studying the formation and evolution of small galaxies in exquisite detail. The Survey of the MAgellanic Stellar History (SMASH) is an NOAO community Dark Energy Camera (DECam) survey of the Clouds mapping 480 deg2 (distributed over similar to 2400 square degrees at similar to 20% filling factor) to similar to 24th. mag in ugriz. The primary goals of SMASH are to identify low surface brightness stellar populations associated with the stellar halos and tidal debris of the Clouds, and to derive spatially resolved star formation histories. Here, we present a summary of the survey, its data reduction, and a description of the first public Data Release (DR1). The SMASH DECam data have been reduced with a combination of the NOAO Community Pipeline, the PHOTRED automated point-spread-function photometry pipeline, and custom calibration software. The astrometric precision is similar to 15 mas and the accuracy is similar to 2 mas with respect to the Gaia reference frame. The photometric precision is similar to 0.5%-0.7% in griz and similar to 1% in u with a calibration accuracy of similar to 1.3% in all bands. The median 5s point source depths in ugriz are 23.9, 24.8, 24.5, 24.2, and 23.5 mag. The SMASH data have already been used to discover the Hydra II Milky Way satellite, the SMASH 1 old globular cluster likely associated with the LMC, and extended stellar populations around the LMC out to R. similar to. 18.4 kpc. SMASH DR1 contains measurements of similar to 100 million objects distributed in 61 fields. A prototype version of the NOAO Data Lab provides data access and exploration tools.
McLaughlin Fellowship at the University of Michigan NSF AST 1655677 AST 1008342 1655677 AST 1313006 AST 1312863 Australian Research Council DP150100862 ERC 308024 German Academic Exchange Service (DAAD), from the UK's Science and Technology Facility Council ST/M001008/1 German Academic Exchange Service (DAAD), from the the European Research Council (ERC) under the European Union's Horizon research and innovation programme 682115 Netherlands Organization for Scientific Research (NWO) Veni grant 639.041.131 "The Milky Way System" of the German Research Foundation (DFB) Sonderforschungsbereich (SFB) 881 CONICYT Anillo project ACT-1122 BASAL PFB-06 NASA U.S. Department of Energy U.S. National Science Foundation Ministry of Science and Education of Spain Science and Technology Facilities Council of the United Kingdom Higher Education Funding Council for England National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign Kavli Institute of Cosmological Physics at the University of Chicago Center for Cosmology and Astro-Particle Physics at the Ohio State University Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University Financiadora de Estudos e Projetos Fundacao Carlos Chagas Filho de Amparo Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro Conselho Nacional de Desenvolvimento Cientfico e Tecnologico and the Ministerio da Ciencia Tecnologia e Inovacao Deutsche Forschungsgemeinschaft Argonne National Laboratory University of California at Santa Cruz University of Cambridge Centro de Investigaciones Energeticas Medioambientales y Tecnologicas-Madrid University of Chicago University College London DES-Brazil Consortium University of Edinburgh Eidgenssische Technische Hochschule (ETH) Zurich Fermi National Accelerator Laboratory University of Illinois at Urbana-Champaign Institut de Ciencies de l'Espai (IEEC/CSIC) Institut de Fisica d'Altes Energies Lawrence Berkeley National Laboratory Ludwig-Maximilians Universitat Munchen associated Excellence Cluster Universe University of Michigan National Optical Astronomy Observatory University of Nottingham Ohio State University University of Pennsylvania University of Portsmouth SLAC National Accelerator Laboratory Stanford University University of Sussex Texas AM University National Aeronautics and Space Administration National Science Foundation
Artículo de publicación ISI
Quote ItemAstronomical Journal Vol.154 (5): 199
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