Abstract Details
| Name: Jayaram N Chengalur Affiliation: NCRA-TIFR Conference ID: ASI2015_967 Title : Cold Gas and Star formation in Nearby dwarfs Abstract Type : Plenary Abstract : We will present results from a study of the gas and star formation in nearby, extremely faint dwarf irregular galaxies. The galaxies that we study are drawn from the Faint Irregular Galaxy GMRT Survey (FIGGS). For all of the FIGGS galaxies, high spectral and velocity resolution HI data is available from GMRT observations. In addition, for most of the sample galaxies, multi-wavelength data, including GALEX UV images, as well as ground based H-alpha and broad band CCD images are available. We use HI data to study the phase structure of the ISM in these galaxies, in particular to try and identify atomic gas that is in the dense Cold Neutral Medium phase. For the sample galaxies the star formation rate can be estimated from the H-alpha or FUV images. We examine the relation between the star formation rate, and the atomic gas, both the total atomic gas, as well as the gas in the dense cold phase. |