A systematic survey for infrared star clusters with |b| < 20° using 2MASS

By D. Froebrich, A. Scholz, C. Raftery, Dublin Institute for Advanced Studies, 2. Dublin, Ireland University of Toronto, Toronto, Canada. Uni. College Dublin, Ireland Harvard-Smithsonian Center for Astrophysics, S. Science and 3 more. 2006

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We used star density maps obtained from the Two-Micron All-Sky Survey (2MASS) to obtain a sample of star clusters in the entire Galactic Plane with |b| < 20°. A total of 1788 star cluster candidates are identified in this survey. Among those are 681 previously known open clusters and 86 globular clusters. A statistical analysis indicates that our sample of 1021 new cluster candidates has a contamination of about 50 per cent. Star cluster parameters are obtained by fitting a King profile to the star density. These parameters are used to statistically identify probable new globular cluster candidates in our sample. A detailed investigation of the projected distribution of star clusters in the Galaxy demonstrates that they show a clear tendency to cluster on spatial scales in the order of 12–25 pc, a typical size for molecular clouds.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/ba6fdd8e093703981e2661542daae14ad1a83a34

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Citations in the corpus

A Gaia DR2 view of the open cluster population in the Milky Way (2018, background): “We could only identify 15% of all FSR clusters (a proportion unchanged if we limit the sample to E(B − V) < 1 and A93, page 9 of 16 distances under 2 kpc), fewer than expected since the authors (Froebrich et al. 2007) estimate a false positive rate of 50%.”
Clusters and mirages: cataloguing stellar aggregates in the Milky Way (2019, methodology): “…known clusters or candidates listed in the literature were detected by means of infrared photometry and are A99, page 8 of 22 too obscured to be observed by Gaia; for instance, that describes most of the FSR clusters discovered by Froebrich et al. (2007) in 2MASS photometry (Skrutskie et al. 2006).”
Global survey of star clusters in the Milky Way II. The catalogue of basic parameters (2013, background): “For clusters detected in the NIR the information came from Bica et al. (2003), Bica et al. (2003), Dutra et al. (2003), Froebrich et al. (2007), Froebrich et al. (2010), Bukowiecki et al. (2011), and other sources.”