Soeren S. Larsen

TL;DR: In this paper, a search for stellar clusters has been carried out in 18 nearby spiral galaxies, using archive images from the Wide Field Planetary Camera 2 on board the Hubble Space Telescope, and a catalogue of structural parameters, photometry and comments based on visual inspection of the clusters is compiled and used to investigate correlations between cluster structure, environment, age and mass.

TL;DR: In this paper, the authors estimate star formation histories by means of the synthetic CMD method and estimate the masses and ages of star clusters using simple stellar population model fitting, and find that stochastic sampling of the stellar initial mass function has a strong impact on the estimation of ages, colors, and completeness for clusters with masses ≤ 10 3 −10 4 M�, while the effect is less pronounced for high masses.

TL;DR: In this article, the luminosity function (LF) of star clusters in M51 based on HST/ACS observations taken as part of the Hubble Heritage project is presented. And the authors find that the LF can be approximated with a double power-law distribution with a break around M_V = -8.9.

TL;DR: In this article, a study of cluster populations in the nearby S0 galaxy NGC 1023 was carried out using HST images, where the authors identified 221 cluster candidates and fit Gaussians to the LFs of the blue and red compact clusters.

TL;DR: Using spectra obtained with the Keck I telescope, this article demonstrated conclusively that the faint (23 7 8 Gyr), moderately metal-rich ([Fe/H]=-0.58+/-0.24) and, having a system rotation curve which is very similar to that of the host galaxy, are associated with the lenticular disk.