99 citations · 217 across the 4 of their papers we have counts for
4 papers
Measuring the Hubble Constant with the Hubble Space Telescope
W. Freedman, R. Kennicutt, J. Mould
Ten years ago our team completed the Hubble Space Telescope Key Project on the extragalactic distance scale. Cepheids were detected in some 25 galaxies and used to calibrate four s…
An HST study of OB associations and star clusters in M101
F. Bresolin, R. Kennicutt, P. Stetson
The massive stellar content, the OB associations and the star clusters in an HST field in M101 = NGC 5457 are investigated. A clustering algorithm yields 79 putative associations.…
Chemical Abundances in Virgo Spiral Galaxies II: Effects of Cluster Environment
Evan D. Skillman, Robert C. Kennicutt, Gregory A. Shields +1
We present new measurements of chemical abundances in H II regions in spiral galaxies of the Virgo cluster and a comparison of Virgo galaxies and field spirals. With these new data…
Consequences of Dust in Metal-Rich HII Regions
Joseph C. Shields, Robert C. Kennicutt
Dust and associated depletion of heavy elements from the gas phase can modify the thermal properties of HII regions from the dust-free case, with significant consequences for the e…