HI signatures of galaxy evolution

Details HI signatures of galaxy evolution HI signatures of galaxy evolution

2011-03-08

arxiv.org/abs/1103.1420v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

11 pages, 8 figures, accepted for publication in proceedings of ISKAF2010 Science Meeting, 'A New Golden Age for Radio Astrono

Scientific paper

HI in and around galaxies provides unique information about the various processes shaping galaxies: merging, cold gas accretion, feedback. Observations of galaxies in the nearby universe are beginning to reveal the HI signatures of these processes by pushing the sensitivity limits of existing radio synthesis telescopes to their limits. This paper gives a brief inventory of these signatures. The capabilities of new instruments such as the SKA pathfinders and precursors is briefly addressed, though ultimately SKA will provide the adequate sensitivity to find these HI signatures beyond the local universe.

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