Evolution and Star Formation of Dwarf Galaxies

摘要: We currently investigate several samples of dwarf galaxies (BCDs, Irr, dE) by means a multi–wavlengths study including optical/NIR imaging as well CO line and 1300µm dust continuum observations. Here we present the status this project preliminary results: i) From mm data find that metallicity cold interstellar medium is normal in Sm types while heavy elements are significantly deficient Im types. ii) The FIR colours various groups indicate most have properties like giant spirals whereas resemble large starburst galaxies. iii) optical NIR studies corroborate previous suggestions there no morphological differences at different wavelengths. iv) objects our sample follow Tully–Fisher relation.