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Discovery of new Milky Way star clusters candidates in the 2MASS point source catalog

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ASTRONOMY & ASTROPHYSICS
卷 394, 期 1, 页码 L1-L4

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E D P SCIENCES
DOI: 10.1051/0004-6361:20021208

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A systematic search of the 2MASS point source catalog, covering 47% of the sky, was carried out aiming to reveal any hidden globular clusters in our Galaxy. Eight new star clusters were discovered by a search algorithm based on finding peaks in the apparent stellar surface density, and a visual inspection of their vicinities yielded additional two. They all are concentrated toward the Galactic plane and are hidden behind up to A(V) = 20 mag which accounts for their late discovery. The majority of new clusters are associated with H regions or unidentified IRAS sources suggesting that they are young, probably similar to Arches or open clusters. Only one candidate has morphology similar to a globular cluster and the verification of its nature will require deeper observations with higher angular resolution than the 2MASS data.

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