7 papers
The formation of bars and disks in Markarian starburst galaxies
R. Coziol, S. Considere, E. Davoust +1
We have proposed in a companion paper (Considere et al. 2000) that bars appeared recently in massive starburst nucleus galaxies. We now test this hypothesis on an extended sample o…
Starbursts in barred spiral galaxies IV: On young bars and the formation of abundance gradients
S. Considere, R. Coziol, T. Contini +1
The oxygen (O/H) and N/O abundance ratios along the bar of 16 barred spiral starburst galaxies are determined using long-slit spectroscopy. The abundance gradients and the spatial…
The Chemical Evolution of Galaxies by Successive Starbursts
T. Contini, R. Coziol, S. Considere +2
We propose an evolutionary scenario by successive bursts of star formation to reproduce the chemical properties of massive nearby Starburst Nucleus Galaxies (SBNGs). The N/O abunda…
The abundance of nitrogen in starburst nucleus galaxies
R. Coziol, R. E. Carlos Reyes, S. Considere +2
We show that the excess of nitrogen emission observed in a large sample of Starburst Nucleus Galaxies (SBNGs) can only be explained at a given metallicity by an overabundance of ni…
Starbursts in Barred Spiral Galaxies. II. Molecular and Optical Study of Three Wolf-Rayet Galaxies
T. Contini, H. Wozniak, S. Considere +1
We have searched for dense molecular gas in three barred spiral galaxies with young starbursts, NGC 3049, 5430 and 6764, which are known Wolf-Rayet galaxies. We detected HCN in the…
A Correlation Between CO Linewidth and Starburst Age in Barred Spiral Galaxies
T. Contini, H. Wozniak, S. Considere +1
New CO(1-0) and CO(2-1) profiles complemented by data from the literature are used to obtain CO linewidths for 29 barred spiral galaxies with young nuclear starbursts. The ages of…