Low Rate Star Formation Activity During Quiescent Phases in Dwarf Galaxies

Details Low Rate Star Formation Activity During Quiescent Phases in Dwarf Galaxies Low Rate Star Formation Activity During Quiescent Phases in Dwarf Galaxies

1998-05-05

arxiv.org/abs/astro-ph/9805042v2

Astronomy and Astrophysics

Astrophysics

figure 2 modified due to an error in the metallicity used to compute the spectra. 4 pages, 2 postscript figures, To appear in

Scientific paper

Observations of quiescent dwarfs and low surface brightness galaxies suggest that continuous low rate star formation is likely to occur, during the quiescent phases between bursts, in dwarf galaxies. We thus have used a spectrophotometric model to reproduce the observed abundances in IZw 18, assuming only a low constant star formation rate. We conclude that such a continuous low star formation rate cannot be neglected, especially when considering the chemical evolution of very metal poor objects.

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