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We report 541 new open cluster candidates in Gaia EDR3 through revisiting thecluster results from an earlier analysis of the Gaia DR2, which revealed nearlya thousand open cluster candidates in the solar neighborhood (mostly d < 3 kpc)resideing at Galactic latitudes |b| < 20 degrees. A subsequent comparison withlists of known clusters shows a large increases of the cluster samples within 2kpc from the Sun. We assign membership probabilities to the stars through theopen source pyUPMASK algorithm, and also estimate the physical parametersthrough isochrone fitting for each candidate. Most of the new candidates showsmall total proper motion dispersions and clear features in the color-magnitudediagrams. Besides, the metallicity gradient of the new candidates is consistentwith those found in the literature. The cluster parameters and member stars areavailable at CDS via anonymous ftp to cdsarc.u-strasbg.fr(130.79.128.5) or viahttps://cdsarc.unistra.fr/viz-bin/cat/J/ApJS. The discovery of these newobjects shows that the open cluster samples in Gaia data is still not complete,and more discoveries are expected in the future researches.

New Open Cluster candidates Found in Galactic Disk Using Gaia DR2/EDR3 Data