KK69: a dwarf galaxy in transition?

SAPONARA JULIANA; KORIBALSKI B.; PATRA, N. N.; BENAGLIA, P.

Viena

Congreso; IAU: General Assembling; 2018

I present new HI observations of the KK\,69 dwarf galaxy obtained with the Giant Metrewave Radio Telescope. The observations are a factor of two deeper than those present up to date in the literature. This improvement in sensitivity allows us to decompose the cold and warm phases of the interstellar medium using a Gaussian decomposition method and a stacking routine. We have found that most of the gas is in the cold neutral phase, which is an unusual characteristic in low-mass galaxies. We will discuss how are these neutral phases of the interstellar medium related to star formation activity in the galaxy, which is the role played by the environment where the galaxy is a host and the influence of those phenomena in the galaxy evolution.