Evolution of star forming dwarf galaxies: Characterizing the star formation scenarios

Abstract

We use the self-consistent model technique developed by Martín-Manjón et al. (2008) that combines the chemical evolution with stellar population synthesis and photo-ionization codes, to study the star formation scenarios capable of reproducing the observed properties of star-forming galaxies. The comparison of our model results with a database of HII galaxies shows that the observed spectra and colors of the present burst and the older underlying population are reproduced by models in a bursting scenario with star formation efficiency involving close to 20 per cent of the total mass of gas, and inter-burst times longer than 100 Myr, and more probably around 1 Gyr. Other modes like gasping and continuous star formation are not favored.

18 pages, 10 figures, to be published in MNRAS

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Cited by in corpus (7)

• Spectroscopy of superluminous supernova host galaxies. A preference of hydrogen-poor events for extreme emission line galaxies
• Dust origin in late-type dwarf galaxies: ISM growth vs. type II supernovae
• Molecular gas in low-metallicity starburst galaxies: Scaling relations and the CO-to-H${}_2$ conversion factor
• Herschel and JCMT observations of the early-type dwarf galaxy NGC 205
• HI imaging of dwarf star-forming galaxies: Masses, morphologies and gas deficiencies
• Chemical and photometric evolution models for disk, irregular and low mass galaxies
• Optical/Near-IR spatially resolved study of the H II galaxy Tol 02