Tidal dwarf galaxies candidates in a sample of minor merger of galaxies

Abstract

We present in this paper a list of candidates tidal dwarf galaxies selected among a sample of 117 HII region observed in 11 minor mergers. The classification of the HII regions was performed using the blue absolute magnitude (M$_B$ $<$ -15), H$α$ luminosity ($\cal L$$(Hα)$ $>$ 10$^{39}$ erg s$^{-1}$) and the star formation rate ($SFR_{Hα}$ $>$ 0.4 M$_{\odot}$ y$^{-1}$) as parameters. The total number of UV photons, the number of the star of each spectral type and the total stellar mass of the cluster were computed for different models adopting Salpeter&#39;s IMF with $α= -2.65$ for the ionizing cluster. The ionizing cluster model which better reproduce the observed properties are supermassive clusters with mass greater than 10$^6 \leq M/M_{\odot} \leq 10^7$.