We present first results from an HST/ACS imaging survey of stars and star clusters in five nearby spiral galaxies. This contribution concentrates on NGC 1313, a highly distorted late-type barred spiral. We compare the field star and cluster formation histories in our three ACS pointings for this galaxy. In one pointing, both the cluster and field star age distributions show clear evidence for a...

We present a preliminary study of the star formation distribution within three Virgo Cluster galaxies using the 24 μm Spitzer observations from the Spitzer Survey of Virgo (SPITSOV) in combination with Hα observations. The purpose of our study is to explore the relationship between the star formation distribution within galaxies and the type (and phase) of interactions experienced within the cl...

The giant galaxies located at the centers of cluster cooling flows are frequently sites of vigorous star formation. In some instances, star formation appears to have been triggered by the galaxy’s radio source. The colors and spectral indices of the young populations are generally consistent with short duration bursts or continuous star formation for durations ≪ 1 Gyr, which is less than the pr...

Nuclear star clusters (NSCs) are massive found in all types of galaxies from dwarfs to galaxies. Recent studies show that while low-mass NSCs dwarf ($M_\text{gal} < 10^{9} M_\odot$) form predominantly out the merger globular (GCs), high-mass have assembled most their mass through central enriched formation. So far, these results a transition dominant NSC formation channel been based on early-ty...

In this paper, we propose a Metropolitan Area Network which is a two level optical star Network. The stations are grouped into clusters based on geographical proximity and communication demands. The stations within a cluster communicate using a local WDM star network and a station in one cluster communicates to a station in another cluster through a remote star in single hop. The multiwavelengt...

Based on the CCD observations of remote young open clusters NGC 2383, NGC 2384, NGC 4103, NGC 4755, NGC 7510 and Hogg 15, we construct their observed luminosity functions (LFs). The observed LFs are corrected for field star contamination determined with the help of galactic star count model. In the case of Hogg 15 and NGC 2383 we also considered the additional contamination from neighboring clu...