Bars and Nuclear Activity in S4G Galaxies

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present an analysis of bars and their relationship to nuclear activity in the Spitzer Survey of Stellar Structure in Galaxies (S4G) sample. S4G is a Spitzer Exploratory Science survey with IRAC to map the mass and stellar structure of 2,331 nearby (d < 40Mpc) galaxies to create an unprecedented data set for studies of structure formation during galaxy evolution. The focus of this research is to study the barred spiral population and to address the relationship between the bar-induced gas flow and nuclear activity in S4G galaxies.

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