Star-formation rates of interacting galaxies
Journal Article
·
· Publ. Astron. Soc. Pac.; (United States)
OSTI ID:6796198
- Illinois, University, Urbana, IL
Spectrophotometry for central regions of five interacting systems of galaxies chosen from the Arp Atlas of Peculiar Galaxies has been obtained. The data are analyzed to derive star-formation rates for different epochs in the galaxies' histories. Oxygen abundances are estimated from emission-line ratios, and stellar population mixes are determined via spectral synthesis modeling. All systems have near-solar oxygen abundances. Only one system, Arp 299, is found to be definitely undergoing a burst of star formation, while the remaining systems are found to be characterized by nearly constant rates of star formation and are not obviously different from noninteracting disk galaxies.
- OSTI ID:
- 6796198
- Journal Information:
- Publ. Astron. Soc. Pac.; (United States), Journal Name: Publ. Astron. Soc. Pac.; (United States) Vol. 96; ISSN PASPA
- Country of Publication:
- United States
- Language:
- English
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