The starburst activity is seen to be hosted by galaxies of nearly all morphological types. In case of elliptical or S0 galaxies in the sample, strong isophotal twisting has been detected, accompanied by boxiness in certain cases. Mrk 1002, Mrk 14 and Mrk 1308 all show strong isophotal twists. In addition, boxiness is detected in Mrk 1002 and Mrk 14. Fine structure like rudimentary spiral structure is observed in Mrk 1002. Nuclear bars have been detected in Mrk 213 and Mrk 1379. Tidal interactions, mergers or accretion of material are the most likely triggers for the starburst phenomena observed in S0s and elliptical like galaxies in the sample. The spirals in the sample show the presence of a bar responsible for fueling the starburst or the presence of a bar-like structure in the central nuclear region as in the case of Mrk 213.
Acknowledgements
This work was supported by the Department of Space, Government of India. The authors are thankful to Mr. A.B. Shah, Mr. N.M. Vadher and Mr. Shashikiran Ganesh for technical support. We are grateful to the referee, Dr.Wozniak for valuable suggestions.
Copyright The European Southern Observatory (ESO)