The VISCACHA survey - I. Overview and First Results

Abstract

The VISCACHA (VIsible Soar photometry of star Clusters in tApii and Coxi HuguA) Survey is an ongoing project based on deep photometric observations of Magellanic Cloud star clusters, collected using the SOuthern Astrophysical Research (SOAR) telescope together with the SOAR Adaptive Module Imager. Since 2015 more than 200 hours of telescope time were used to observe about 130 stellar clusters, most of them with low mass (M < 10${}^4$ M${}_{\odot }$) and/or located in the outermost regions of the Large Magellanic Cloud and the Small Magellanic Cloud. With this high quality data set, we homogeneously determine physical properties from statistical analysis of colour-magnitude diagrams, radial density profiles, luminosity functions and mass functions. Ages, metallicities, reddening, distances, present-day masses, mass function slopes and structural parameters for these clusters are derived and used as a proxy to investigate the interplay between the environment in the Magellanic Clouds and the evolution of such systems. In this first paper we present the VISCACHA Survey and its initial results, concerning the SMC clusters AM3, K37, HW20 and NGC796 and the LMC ones KMHK228, OHSC3, SL576, SL61 and SL897, chosen to compose a representative subset of our cluster sample. The project's long term goals and legacy to the community are also addressed.

arXiv comment21 pages, 21 figures

References in corpus (79)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Gaia Data Release 2. Summary of the contents and survey properties
• The Gaia mission
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• Embedded Clusters in Molecular Clouds
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Resolved Massive Star Clusters in the Milky Way and its Satellites: Brightness Profiles and a Catalogue of Fundamental Parameters
• Gaia Data Release 2: Kinematics of globular clusters and dwarf galaxies around the Milky Way
• Homogeneous Photometry for Star Clusters and Resolved Galaxies. II. Photometric Standard Stars
• Are the Magellanic Clouds on their First Passage about the Milky Way?
• The Dark Energy Survey Data Release 1
• Third-Epoch Magellanic Cloud Proper Motions I: HST/WFC3 data and Orbit Implications
• The Star Formation History of the Large Magellanic Cloud
• The Magellanic Clouds Photometric Survey: The Large Magellanic Cloud Stellar Catalog and Extinction Map
• Analysis of isoplanatic high resolution stellar fields by Starfinder code
• The Magellanic Clouds Photometric Survey: The Small Magellanic Cloud Stellar Catalog and Extinction Map
• SkyMapper Southern Survey: First Data Release (DR1)
• The VMC Survey - I. Strategy and First Data
• Target Selection for the SDSS-IV APOGEE-2 Survey
• Third-Epoch Magellanic Cloud Proper Motions II: The Large Magellanic Cloud Rotation Field in Three Dimensions
• The disruption of nearby galaxies by the Milky Way
• The stellar and sub-stellar IMF of simple and composite populations
• Age Determination of Six Intermediate-age SMC Star Clusters with HST/ACS
• The Tidal Origin of the Magellanic Stream and the Possibility of a Stellar Counterpart
• A general catalogue of extended objects in the Magellanic System
• Ages and Luminosities of Young SMC/LMC Star Clusters and the recent Star Formation History of the Clouds
• The gravitational and hydrodynamical interaction between the LMC and the Galaxy
• A Search for Old Star Clusters in the Large Magellanic Cloud
• Calcium II Triplet Spectroscopy of LMC Red Giants. I. Abundances and Velocities for a Sample of Populous Clusters
• SMASH - Survey of the MAgellanic Stellar History
• A Population of Accreted SMC Stars in the LMC
• The star cluster formation history of the LMC
• The VMC survey - XXXI. The spatially resolved star formation history of the main body of the Small Magellanic Cloud
• The Proper Motion Field of the Small Magellanic Cloud: Kinematic Evidence for its Tidal Disruption
• A Digital Photometric Survey of the Magellanic Clouds: First Results From One Million Stars
• SMASHing the LMC: A Tidally-induced Warp in the Outer LMC and a Large-scale Reddening Map
• The Star Clusters of the Small Magellanic Cloud: Age Distribution
• Ages and Metallicities of Star Clusters and Surrounding Fields in the Outer Disk of the Large Magellanic Cloud
• The Early Expansion of Cluster Cores
• Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. I. Abundances and Velocities for a Sample of Clusters
• Age distribution of young clusters and field stars in the SMC
• Red Giants in the Small Magellanic Cloud. II. Metallicity Gradient and Age-Metallicity Relation
• First Gaia Local Group Dynamics: Magellanic Clouds Proper Motion and Rotation
• Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. III. Abundances and Velocities for a Sample of 14 Clusters
• The Star Clusters of the Small Magellanic Cloud: Structural Parameters
• The VMC Survey - XXIV. Signatures of tidally stripped stellar populations from the inner Small Magellanic Cloud
• Characterization and Photometric Membership of the Open Cluster NGC1981
• OGLE-ing the Magellanic System: Stellar populations in the Magellanic Bridge
• The Magellanic Bridge cluster NGC 796: Deep optical AO imaging reveals the stellar content and initial mass function of a massive open cluster
• The VMC survey - XV. The Small Magellanic Cloud--Bridge connection history as traced by their star cluster populations
• The MAGellanic Inter-Cloud project (MAGIC) I: Evidence for intermediate-age stellar populations in between the Magellanic Clouds
• SMASHing THE LMC: Mapping a Ring-like Stellar Overdensity in the LMC Disk
• The Great Circle Camera: A New Drift Scanning Instrument
• The Star Clusters of the Large Magellanic Cloud: Structural Parameters
• SMC west halo: a slice of the galaxy that is being tidally stripped? Star clusters trace age and metallicity gradients
• Exploring the Very Extended Low Surface Brightness Stellar Populations of the Large Magellanic Cloud with SMASH
• STEP: The VST survey of the SMC and the Magellanic Bridge. I. Overview and first results
• Age Determination of Fifteen Old to Intermediate-Age Small Magellanic Cloud Star Clusters
• Distances to Populous Clusters in the LMC via the K-Band Luminosity of the Red Clump
• Background galaxies as reddening probes throughout the Magellanic Clouds
• The VMC survey XXX. Stellar proper motions in the central parts of the Small Magellanic Cloud
• Propagation of Errors for Matrix Inversion
• Mass distribution and structural parameters of Small Magellanic Cloud star clusters
• Self-consistent physical parameters for five intermediate-age SMC stellar clusters from CMD modelling
• Evidence of differential tidal effects in the old globular cluster population of the Large Magellanic Cloud
• The Size of Star Clusters Accreted by the Milky Way
• Spectral evolution of star clusters in the Large Magellanic Cloud: I. Blue concentrated clusters in the age range 40-300 Myr
• Recent Star Formation in the Leading Arm of the Magellanic Stream
• Astrophysical properties of star clusters in the Magellanic Clouds homogeneously estimated by $\text{ASteCA}$
• Star Clusters in the Magellanic Clouds-1: Parameterisation and Classification of 1072 Clusters in the LMC
• Physical properties of star clusters in the outer LMC as observed by the Dark Energy Survey
• Young and embedded clusters in Cygnus-X: evidence for building up the IMF?
• Kinematical Structure of the Magellanic System
• Bridge over troubled gas: clusters and associations under the SMC and LMC tidal stresses
• Herbig Ae/Be Stars in the Magellanic Bridge
• Extended Main Sequence Turn-Offs in Low Mass Intermediate Age Clusters
• A catalogue of Large Magellanic Cloud star clusters observed in the Washington photometric system
• SOAR Adaptive Optics Observations of the Globular Cluster NGC6496
• New age-metallicity diagnostic diagram for the Washington photometric system

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• An Updated SMC and Magellanic Bridge Catalog of Star Clusters, Associations and Related Objects
• The VISCACHA survey -- IV. The SMC West Halo in 8D
• The VISCACHA survey -- III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D
• The VISCACHA survey -- II. Structure of star clusters in the Magellanic Clouds periphery
• Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. V. Abundances and Velocities for 12 Massive Clusters
• STEP Survey II: Structural Analysis of 170 star clusters in the SMC
• The VISCACHA survey -- VII. Assembly history of the Magellanic Bridge and SMC Wing from star clusters
• Ca II Triplet Spectroscopy of Small Magellanic Cloud Red Giants. VI. Analysis of chemical properties of the Main Body
• Vertical structure and kinematics of the LMC disc from SDSS/Gaia
• Rubin Observatory LSST Stars Milky Way and Local Volume Star Clusters Roadmap
• A genuine Large Magellanic Cloud age gap star cluster
• Panchromatic calibration of Ca II triplet luminosity dependence
• The VISCACHA survey -- VIII. Chemical evolution history of Small Magellanic Cloud West Halo cluster
• Astrophysical properties of newly discovered Magellanic Cloud star clusters
• The VISCACHA survey -- V. Rejuvenating three faint SMC clusters
• Revisiting newly Large Magellanic Cloud age gap star clusters
• On the structure of Small Magellanic Cloud star clusters
• The VISCACHA survey -- deep and resolved photometry of star clusters in the Magellanic Clouds
• The YMCA (Yes, Magellanic Clouds Again) survey: probing the outer regions of the Magellanic system with VST
• The VISCACHA Survey: XIII. The extended main-sequence turn-off in intermediate-age low-mass clusters
• Ages and metallicities of stellar clusters using S-PLUS narrow-band integrated photometry: the Small Magellanic Cloud
• The chemical DNA of the Magellanic Clouds VI. Origin and evolution of neutron-capture elements in the SMC