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

D. Froebrich; A. Scholz; C. L. Raftery

doi:10.1111/j.1365-2966.2006.11148.x

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

D. Froebrich, A. Scholz, C. L. Raftery

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169 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	399-408
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	374
Issue number	2
DOIs	https://doi.org/10.1111/j.1365-2966.2006.11148.x
State	Published - Jan 2007
Externally published	Yes

Keywords

Globular clusters: general
Methods: statistical
Open clusters and associations: general

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10.1111/j.1365-2966.2006.11148.x

Cite this

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

abstract = "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.",

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doi = "10.1111/j.1365-2966.2006.11148.x",

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TY - JOUR

T1 - A systematic survey for infrared star clusters with |b| < 20° using 2MASS

AU - Froebrich, D.

AU - Scholz, A.

AU - Raftery, C. L.

PY - 2007/1

Y1 - 2007/1

N2 - 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.

AB - 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.

KW - Globular clusters: general

KW - Methods: statistical

KW - Open clusters and associations: general

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DO - 10.1111/j.1365-2966.2006.11148.x

M3 - Article

AN - SCOPUS:33846151346

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VL - 374

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

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ER -

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

Abstract

Keywords

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