Elemental Abundance Variations and Chemical Enrichment from Massive Stars in Starbursts. II. NGC 1569
Citations Over TimeTop 10% of 1997 papers
Abstract
We present a long-slit optical spectrophotometric survey covering 0.05 kpc2 in the nearby irregular "" post-starburst galaxy NGC 1569 to search for chemical gradients and inhomogeneities in the interstellar medium. Despite the presence of two massive evolved star clusters and numerous H II regions, we nd no evidence for chemical gradients or inhomogeneities that may be attributed to enrichment from the recent star formation activity. The chemical properties at all locations are consistent with the results from the highest signal-to-noise ratio spectra : 12 ] log (O/H) \ 8.19 ^0.02, log (N/O) \ [1.39 ^0.05, He/H \ 0.080 ^0.003. No localized chemical self-enrichment ("" pollution ) from massive star evolution is found, even though the data are sensitive to the chemical yields from as few as two or three massive stars.
Related Papers
- → Prediction of abundance of beetles according to climate warming in South Korea(2015)19 cited
- → Simulating the formation and evolution of galaxies: multi-phase description of the interstellar medium, star formation, and energy feedback(2007)29 cited
- → Setting the volatile composition of (exo)planet-building material. Does chemical evolution in disk midplanes matter?(2016)2 cited
- → Abundance determination in PNe: How to deal with large chemical inhomogeneities(2023)