Gas in early-type galaxies: cross-fuelling in late-type-early-type pairs?

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galaxies: Elliptical And Lenticular, Cd, Galaxies: Ism, Galaxies: Interactions, Radio Lines: Galaxies

Scientific paper

We present 12CO (J= 1-0) and 12CO (J= 2-1) observations of eight early-type galaxies, forming part of a sample of interacting galaxies, each consisting of one late- and one early-type system. All of the early-type galaxies observed are undetected in CO to low levels, allowing us to place tight constraints on their molecular gas content. Additionally, we present HI absorption data for one system. The implications for possible gas transfer from the late- to the early-type galaxy during the interaction are discussed.

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