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

被引:65
作者
Ivanov, VD
Borissova, J
Pessev, P
Ivanov, GR
Kurtev, R
机构
[1] European So Observ, Santiago 19001, Chile
[2] Bulgarian Acad Sci, Inst Astron, BU-1784 Sofia, Bulgaria
[3] Isaac Newton Inst Chile, Bulgarian Branch, BU-1784 Sofia, Bulgaria
[4] Isaac Newton Inst Chile, Bulgarian Branch, Sofia 1164, Bulgaria
[5] Univ Sofia, Dept Astron, Sofia 1164, Bulgaria
关键词
D O I
10.1051/0004-6361:20021208
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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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页码:L1 / L4
页数:4
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