6822galaxies:starclusters:generalWe present three newly discovered globular clusters (GCs) in the Local Group dwarf irregular NGC 6822. Two are luminous and compact, while the third one is a very low luminosity diffuse cluster. We report the integrated optical photometry of the clusters, drawing ...
The young stars trace the distribution of the neutral hydrogen in the inner disc, but seem to be avoiding the supergiant H I shell in NGC 6822, setting a lower limit for its age of 10[SUP8] yr. The extended distribution of young stars implies that stars can form at large galactocentric...
We have monitored, during four years, a 32' x 32' area of the Local Group dwarf galaxy NGC 6822. Observations lead to the discovery of 30 Miras and 24 semi-regular and irregular variables. When relating the periods of Miras to their age, we find a continuous star formation during the ...
To test these PL relations, we applied the IRAC band PL relations to the three nearby galaxies (NGC 6822, IC 1613 & WLM), where the Cepheid data were found from the Spitzer Archival data, and derive the distance moduli (in IRAC bands) to these galaxies. We also compare our results to...
6822MirasWe present preliminary results of a NIR survey of NGC 6822 carried during the last four observing seasons. The goal of our variable star program is to identify and characterize the bright red variables. In one of the two observed fields we have identified 30 Miras and 24 irregular ...