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Abstract:

We report on a study of the stellar population of the spiral galaxy NGC 5247, based on deep narrow-band H-alpha imaging and optical spectroscopy. We found a number of H II regions distributed in the disk and prominent spiral arms of the galaxy. The spectra of these regions show clear emission lines indicating star formation activity, with estimated ages ranging from a few million years to a few tens of millions of years. The derived oxygen abundance indicates a value close to the solar value. We also found evidence of young massive stars in two compact clusters located in the inner region of the galaxy, suggesting that star formation activity is ongoing in this central region.
1. What is the focus of the study?
2. What type of imaging was used in the study?
3. Where were the H II regions found?
4. What do the spectra of the H II regions show?
5. What is the estimated range of ages for the star formation activity?
6. What is the oxygen abundance value found in the study?
7. Is ongoing star formation activity observed in the central region of the galaxy?