- Dowell et al.
- http://arxiv.org/abs/astro-ph/0611586
- SSCs in nearby spirals and irregulars from SDSS
- SDSS colors plus spectral evolutionary modelling to determine cluster ages and mass.
- They find a steeper slope for the mass function (at high masses) in irregulars as compared to spirals.
- I wonder how reliable the masses are from this method. It’s a tricky business and dynamical cluster masses would be nicer.