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The HLA Star Cluster project

NGC 1309 image with 9 cutout images of clusters.  Annotated with cluster numbers Compact star cluster catalogs are presented for 20 nearby, star-forming galaxies using observations from the Advanced Catalog for Surveys (ACS) and source lists generated by the Hubble Legacy Archive. Results based on these cluster catalogs are published in the paper "The Luminosity Function of Star Clusters in 20 Star-Forming Galaxies Based on Hubble Legacy Archive Photometry" Whitmore, AJ 147:78. A typical cluster luminosity function can be approximated by a power-law, with an average value for the index of -2.37 and rms scatter = 0.18. The uniform database provided by these HLA catalogs results in a small scatter (0.5 magnitude) in the correlation between the magnitude of the brightest cluster (M_brightest) and Log of the number of clusters brighter than M_I = -9 (Log N).

Image and Catalog Data can be found at http://archive.stsci.edu/pub/hlsp/hlastarclusters.

Summary of Cluster Catalogs

Click to sort most columns

Galaxy Brightness
Limit, MI
Concentration
Index,C
Uniqpos
Rneighbor
Mbrightest log N @ Brightness
Limit
log N @ MI = -9
Limit
Interactive Display Link
NGC 45-8.01.1510-10.831.791.32

Interactive Display

NGC 406-9.01.1010-11.752.052.05 Interactive Display
NGC 628/M74-8.01.1510-11.842.291.69 Interactive Display
NGC 1300 (field 2)-9.01.1010-11.002.132.13 Interactive Display
NGC 1300 (field 1)-9.01.1010-11.522.172.17 Interactive Display
NGC 1309-9.01.1010-13.803.043.04 Interactive Display
NGC 1313-8.01.2525-10.981.911.32 Interactive Display
NGC 1483-8.51.1315-10.011.611.07 Interactive Display
NGC 2397-9.01.1010-13.472.702.70 Interactive Display
NGC 3627/M66-9.01.1010-11.972.402.40 Interactive Display
NGC 4038-10.01.1010-15.252.86 ... Interactive Display
NGC 4258-8.01.1510-10.642.041.34 Interactive Display
NGC 4394-8.51.1010-10.251.741.49 Interactive Display
NGC 4395-7.01.3030-9.791.430.69 Interactive Display
NGC 4736-7.51.1420-10.441.790.77 Interactive Display
NGC 5055/M63-7.51.1510-9.611.680.47 Interactive Display
NGC 5236 (field 1)/M83-8.01.1520-11.742.421.88 Interactive Display
NGC 5236 (field 2)/M83-8.01.1520-10.061.881.14 Interactive Display
NGC 5457 (field 1)/M101-8.01.1520-11.382.291.60 Interactive Display
NGC 5457 (field 2)/M101-8.01.1520-11.572.301.74 Interactive Display
NGC 6217-10.01.1010-13.281.82 ... Interactive Display
NGC 6503-8.01.2020-10.511.390.47 Interactive Display
NGC 7793-7.51.2430-9.651.360.60 Interactive Display