Physical properties of star clusters in the outer LMC as observed by the DES

Autor: Flavia Sobreira, Eduardo Balbinot, J. J. Thaler, Shantanu Desai, A. Benoit-Lévy, Basilio X. Santiago, Michael Schubnell, V. Scarpine, M. E. C. Swanson, Jennifer L. Marshall, L. N. da Costa, E. Suchyta, H. T. Diehl, K. Honscheid, Robert Connon Smith, Anna B. A. Queiroz, D. A. Finley, Tianjun Li, David J. James, David J. Brooks, D. L. Tucker, M. Carrasco Kind, E. Bertin, Pablo Fosalba, Alex Drlica-Wagner, J. Carretero, Adriano Pieres, Robert C. Nichol, Daniel Thomas, E. Buckley-Geer, B. Flaugher, Kyler Kuehn, Joshua A. Frieman, Nikolay Kuropatkin, Gregory Tarle, A. Roodman, Alistair R. Walker, I. Sevilla-Noarbe, Marcelle Soares-Santos, A. Carnero Rosell, Marcio A. G. Maia, G. Gutierrez, D. L. Burke, Brian Nord, Ofer Lahav, S. Allam, Robert A. Gruendl, Daniel Gruen, Ramon Miquel, D. W. Gerdes, C. J. Miller, A. K. Romer, Paul Martini, Tim Eifler, Ricardo L. C. Ogando, A. A. Plazas, Carlos E. Cunha, E. Luque, T. M. C. Abbott, E. J. Sanchez
Přispěvatelé: Univ Fed Rio Grande do Sul, Lab Interinst E Astron LIneA, Univ Surrey, Observ Nacl, Fermilab Natl Accelerator Lab, Stanford Univ, SLAC Natl Accelerator Lab, Natl Opt Astron Observ, CNRS, UCL, Univ Paris 06, Univ Illinois, Natl Ctr Supercomp Applicat, IEEC CSIC, Barcelona Inst Sci & Technol, Excellence Cluster Universe, Univ Munich, CALTECH, Univ Michigan, Ohio State Univ, Australian Astron Observ, Texas A&M Univ, Inst Catalana Recerca & Estudis Avancats, Univ Portsmouth, Univ Sussex, Ctr Invest Energet Medioambientales & Tecnol CIEM, Universidade Estadual Paulista (Unesp), Univ Penn
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Pieres, A, Santiago, B, Balbinot, E, Luque, E, Queiroz, A B A, Costa, L N D, Maia, M A G, Drlica-Wagner, A, Roodman, A, Abbott, C, Allam, S, Benoit-Levy, A, Bertin, E, Brooks, D, Buckley-Geer, E, Burke, D L, Rosell, A C, Kind, M C, Carretero, J, Cunha, C E, Desai, S, Diehl, H T, Eifler, T F, Finley, D A, Flaugher, B, Fosalba, P, Frieman, J, Gerdes, D W, Gruen, D, Gruendl, R A, Gutierrez, G, Honscheid, K, James, D J, Kuehn, K, Kuropatkin, N, Lahav, O, Li, T S, Marshall, J L, Martini, P, Miller, C J, Miquel, R, Nichol, R C, Nord, B, Ogando, R, Plazas, A A, Romer, A K, Sanchez, E, Scarpine, V, Schubnell, M, Sevilla-Noarbe, I, Smith, R C, Soares-Santos, M, Sobreira, F, Suchyta, E, Swanson, M E C, Tarle, G, Thaler, J, Thomas, D, Tucker, D & Walker, A R 2016, ' Physical properties of star clusters in the outer LMC as observed by the DES ', Monthly Notices of the Royal Astronomical Society, vol. 461, no. 1, pp. 519-541 . https://doi.org/10.1093/mnras/stw1260
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
ISSN: 9150-1970
0035-8711
Popis: Made available in DSpace on 2018-11-26T17:06:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-09-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) European Research Council US Department of Energy US 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 Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) Ministerio da Ciencia, Tecnologia e Inovacao Deutsche Forschungsgemeinschaft Collaborating Institutions in the Dark Energy Survey National Science Foundation MINECO Centro de Excelencia Severo Ochoa European Research Council under the European Union ICREA Science and Technology Facilities Council The Large Magellanic Cloud (LMC) harbours a rich and diverse system of star clusters, whose ages, chemical abundances and positions provide information about the LMC history of star formation. We use Science Verification imaging data from the Dark Energy Survey (DES) to increase the census of known star clusters in the outer LMC and to derive physical parameters for a large sample of such objects using a spatially and photometrically homogeneous data set. Our sample contains 255 visually identified cluster candidates, of which 109 were not listed in any previous catalogue. We quantify the crowding effect for the stellar sample produced by the DES Data Management pipeline and conclude that the stellar completeness is < 10 per cent inside typical LMC cluster cores. We therefore reanalysed the DES co-add images around each candidate cluster and remeasured positions and magnitudes for their stars. We also implement a maximum-likelihood method to fit individual density profiles and colour-magnitude diagrams. For 117 (from a total of 255) of the cluster candidates (28 uncatalogued clusters), we obtain reliable ages, metallicities, distance moduli and structural parameters, confirming their nature as physical systems. The distribution of cluster metallicities shows a radial dependence, with no clusters more metal rich than [Fe/H] similar or equal to -0.7 beyond 8 kpc from the LMC centre. The age distribution has two peaks at similar or equal to 1.2 and similar or equal to 2.7 Gyr. Univ Fed Rio Grande do Sul, Inst Fis, Caixa Postal 15051, BR-91501970 Porto Alegre, RS, Brazil Lab Interinst E Astron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile CNRS, UMR 7095, Inst Astrophys Paris, F-75014 Paris, France UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England Univ Paris 06, Sorbonne Univ, UMR 7095, Inst Astrophys Paris, F-75014 Paris, France Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA IEEC CSIC, Inst Ciencies Espai, Campus UAB,Carrer Can Magrans,S-N, E-08193 Barcelona, Spain Barcelona Inst Sci & Technol, IFAE, Campus UAB, E-08193 Barcelona, Spain Excellence Cluster Universe, Boltzmannstr 2, D-85748 Garching, Germany Univ Munich, Fac Phys, Scheinerstr 1, D-81679 Munich, Germany CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA Australian Astron Observ, N Ryde, NSW 2113, Australia Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA Ohio State Univ, Dept Astron, 174 W 18Th Ave, Columbus, OH 43210 USA Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England Univ Sussex, Dept Phys & Astron, Pevensey Bldg, Brighton BN1 9QH, E Sussex, England Ctr Invest Energet Medioambientales & Tecnol CIEM, Madrid, Spain Univ Estadual Paulista, ICTP South Amer Inst Fundamental Res, Inst Fis Teor, Sao Paulo, Brazil Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA Univ Estadual Paulista, ICTP South Amer Inst Fundamental Res, Inst Fis Teor, Sao Paulo, Brazil European Research Council: ERC-StG-335936 National Science Foundation: AST-1138766 MINECO: AYA2012-39559 MINECO: ESP2013-48274 MINECO: FPA2013-47986 Centro de Excelencia Severo Ochoa: SEV-2012-0234 European Research Council under the European Union: 240672 European Research Council under the European Union: 291329 European Research Council under the European Union: 306478 Science and Technology Facilities Council: ST/N000668/1 Science and Technology Facilities Council: ST/K00090X/1
Databáze: OpenAIRE
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