Star Formation in Tadpole Galaxies

Star formation in galaxies and star clusters

This thesis is devoted to star formation from galaxy-scales (≈ 10 000 pc) to sub-star cluster-scales (≈ 0.1 pc). I develop and test a new method to derive star formation histories of Galaxies from their star cluster content, in particular the most massive star clusters. This is followed by an application of this method to the Large Magellanic Cloud, where the results of this new method are conf...

Star Formation in Ring Galaxies

Ring galaxies are specific types of interacting galaxies in which a smaller galaxy has passed through the center of the disk of another larger galaxy. The intrusion of the smaller galaxy causes the structure of the larger galaxy to compress as the smaller galaxy falls through, and to recoil back after the smaller galaxy passes through, hence the ring-like shape. In our research, we studied the ...

Star Formation in Satellite Galaxies

We present narrow-band observations of the Hα emission in a sample of 31 satellite orbiting isolated giant spiral galaxies. The sample studied spans the range −19 < MB < −15 mag. The Hα emission was detected in all the spiral and irregular objects with fluxes in the range 1.15 − 49.80 × 10 erg cm s. The average and maximum values for the current star formation rates are 0.68 and 3.66 M⊙ yr −1 r...

Star Formation in Starburst Galaxies

Some of the basic properties of star formation in starburst galaxies are reviewed. I discuss triggering and termination mechanisms in starbursts and provide estimates of star-formation rates. Galaxies with ongoing star formation at low and high redshift are compared.

Star Formation in Normal Galaxies