Spatio-temporal map of star clusters in the Magellanic Clouds using Gaia: Synchronized peaks and radial shrinkage of cluster formation

Abstract

We present a detailed view of cluster formation (CF) to trace the evolution and interaction history of the Magellanic Clouds (MCs) in the last 3.5 Gyr. Using the \textit{Gaia} DR3 data, we parameterized 1710 and 280 star clusters in the Large Magellanic Cloud (LMC) and the Small Magellanic Cloud (SMC), where 847 and 113 clusters are newly characterized in the outer LMC and SMC, respectively. We estimated the age-extinction-metallicity-distance parameters using an automated fitting of the color-magnitude diagram (CMD) after field star removal, followed by an MCMC technique. We report a first-time detection of two synchronized CF peaks in the MCs at 1.5$\pm$0.12 Gyr and 800$\pm$60 Myr. We recommend that the choice of the metallicity ($Z$) values of isochrones for clusters with age $\le$ 1 - 2 Gyr are Z${}_{\text{LMC}}$ = 0.004 - 0.008 and Z${}_{\text{SMC}}$ = 0.0016 - 0.004 for the LMC and SMC, respectively. We found evidence for spiral arms in the LMC, as traced by the cluster count profiles over the last 3.5 Gyr. The density maps provide evidence of ram-pressure stripping in the North-East of the LMC, a severe truncation of CF in the South of the LMC, and a radial shrinkage of CF in the SMC in the last 450 Myr. The last SMC-LMC interaction ($\sim$ 150 Myr) resulted in a substantial CF in the North and Eastern SMC, with a marginal impact on the LMC. This study provides important insights into the CF episodes in the MCs and their connection to the LMC-SMC-MW interactions.

arXiv commentAccepted in MNRAS journal

References in corpus (68)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• 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
• The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
• Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
• Gaia Data Release 2: The astrometric solution
• A Quantitative Comparison of SMC, LMC, and Milky Way UV to NIR Extinction Curves
• Gaia Early Data Release 3: The astrometric solution
• astroquery: An Astronomical Web-Querying Package in Python
• Gaia Early Data Release 3: Photometric content and validation
• A distance to the Large Magellanic Cloud that is precise to one per cent
• Gaia Data Release 2: Kinematics of globular clusters and dwarf galaxies around the Milky Way
• Are the Magellanic Clouds on their First Passage about the Milky Way?
• The Star Formation History of the Large Magellanic Cloud
• The Star Formation History of the Small Magellanic Cloud
• The Role of Dwarf Galaxy Interactions in Shaping the Magellanic System and Implications for Magellanic Irregulars
• The Proper Motion of the Large Magellanic Cloud using HST
• The Magellanic Stream, High-Velocity Clouds and the Sculptor Group
• Is the SMC Bound to the LMC? The HST Proper Motion of the SMC
• Gaia Data Release 3: Stellar multiplicity, a teaser for the hidden treasure
• The disruption of nearby galaxies by the Milky Way
• A distance determination to the Small Magellanic Cloud with an accuracy of better than 2 percent based on late-type eclipsing binary stars
• The Tidal Origin of the Magellanic Stream and the Possibility of a Stellar Counterpart
• A general catalogue of extended objects in the Magellanic System
• Magellanic Cloud Structure from Near-IR Surveys II: Star Count Maps and the Intrinsic Elongation of the LMC
• Formation and evolution of the Magellanic Clouds. I.Origin of structural, kinematical, and chemical properties of the Large Magellanic Cloud
• Ram Pressure Stripping of the Large Magellanic Cloud's Disk as a Probe of the Milky Way's Circumgalactic Medium
• SMASH - Survey of the MAgellanic Stellar History
• Cloud-cloud collisions and triggered star formation
• Depth estimation of the Large and Small Magellanic Clouds
• 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
• The VMC Survey IV. The LMC star formation history and disk geometry from four VMC tiles
• The Metallicity and Dust Content of HVC 287.5+22.5+240: Evidence for a Magellanic Clouds Origin
• Low Surface Brightness Imaging of the Magellanic System: Imprints of Tidal Interactions between the Clouds in the Stellar Periphery
• The Magellanic Stream System: I. Ram-pressure tails and the relics of the collision between the Magellanic Clouds
• A 10 kpc stellar substructure at the edge of the Large Magellanic Cloud: perturbed outer disk or evidence for tidal stripping?
• Effect of the Milky Way on Magellanic Cloud structure
• Spatially resolved LMC star formation history: I. Outside in evolution of the outer LMC disk
• The synchronised dance of the Magellanic Clouds' star formation history
• Age distribution of young clusters and field stars in the SMC
• The star formation history of the Magellanic Clouds derived from long-period variable star counts
• The VMC survey -- XLIII. The spatially resolved star formation history across the Large Magellanic Cloud
• The VMC Survey -- XXXIV. Morphology of Stellar Populations in the Magellanic Clouds
• SMASHing THE LMC: Mapping a Ring-like Stellar Overdensity in the LMC Disk
• Recent star formation history of the Large and Small Magellanic Clouds
• The Large Magellanic Cloud stellar content with SMASH: I. Assessing the stability of the Magellanic spiral arms
• Kinematic analysis of the Large Magellanic Cloud using Gaia DR3
• Self-consistent analysis of stellar clusters: An application to HST data of the halo globular cluster NGC 6752
• The VMC Survey. XXIX. Turbulence-Controlled Hierarchical Star Formation in the Small Magellanic Cloud
• Evidence of differential tidal effects in the old globular cluster population of the Large Magellanic Cloud
• Evolution of dust and molecular hydrogen in the Magellanic System
• The Optical Gravitational Lensing Experiment. Final Reductions of the OGLE-III Data
• Star Clusters in the Magellanic Clouds-1: Parameterisation and Classification of 1072 Clusters in the LMC
• Long Period Variables in the Large Magellanic Cloud from the EROS-2 survey
• The Origin of Large-scale HI structures in the Magellanic Bridge
• Star Clusters in the Magellanic Clouds - II. Age-Dating, Classification and Spatio-Temporal Distribution of the SMC Clusters
• Using Star Clusters as Tracers of Star Formation and Chemical Evolution: the Chemical Enrichment History of the Large Magellanic Cloud
• OGLE-ing the Magellanic System: RR Lyrae Stars in the Bridge
• A catalogue of Large Magellanic Cloud star clusters observed in the Washington photometric system
• Application of a Neural Network classifier for the generation of clean Small Magellanic Cloud stellar samples
• Shape of the outer stellar warp in the Large Magellanic Cloud disk
• Deep Washington photometry of inconspicuous star cluster candidates in the Large Magellanic Cloud
• The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. XI. RR Lyrae Stars in the Galactic Bulge

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