Globular cluster number density profiles using Gaia DR2

The Dependence of Globular Cluster Number on Density for Abell Cluster Central Galaxies

A study of the globular cluster systems of 23 brightest, or central, galaxies in 19 Abell clusters has recently been completed (Blakeslee 1997). This letter presents some of the newly discovered correlations of the globular cluster specific frequency SN in these galaxies with other galaxy and cluster properties and puts forth an interpretation of these results. SN is found to correlate strongly...

Convergence and scatter of cluster density profiles

We present new results from a series of ΛCDM simulations of cluster mass halos resolved with high force and mass resolution. These results are compared with recently published simulations from groups using various codes including PKDGRAV, ART, TPM, GRAPE and GADGET. Careful resolution tests show that with 25 million particles within the high resolution region we can resolve to about 0.3% of the...

Nearby Spiral Galaxy Globular Cluster Systems II : Globular Cluster

We present new metallicity estimates for globular cluster candidates in the Sd spiral NGC 300, one of the nearest spiral galaxies outside the Local Group. We have obtained optical spectroscopy for 44 Sculptor Group globular cluster candidates with the Boller and Chivens (B&C) spectrograph on the Baade Telescope at Las Campanas Observatory. There are 2 globular clusters in NGC 253 and 14 objects...

Globular Cluster Distance Determinations

Globular Cluster Formation

The discovery of young globular clusters in merging galaxies and other environments provides an opportunity to study directly the process of globular cluster formation. Empirically it appears that globular cluster formation occurs preferentially in regions in which star formation occurs at a high rate and efficiency. Further, the interstellar medium in such regions is likely to be at a higher p...