Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005assl..329p..50m&link_type=abstract
Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M.
Astronomy and Astrophysics
Astrophysics
Scientific paper
The recent, very strong starburst in the nearby dwarf galaxy NGC 1569 has had a tremendous impact on both the ionized and the neutral interstellar gas in the galaxy and has led to the formation of a powerful galactic wind. In this contribution, we discuss the distribution and kinematics of the neutral atomic hydrogen using a high-resolution H I data cube and results from Chandra observations. We also report on our recent observations of the molecular gas morphology and velocity structure in the region near two very bright super star clusters and compare it to the distribution of the atomic gas. The spectra of several 12CO and 13CO transition lines have been used to derive an average kinetic temperature and gas density in the most prominent giant molecular association west of the super star clusters. In addition, we present evidence for an extended H I structure in the halo of NGC 1569. This, and several peculiar features in the disk of NGC 1569, leads us to suggest that NGC 1569 is currently merging with an intergalactic H I cloud, which may have been the trigger and a gas reservoir of the recent starburst.
Huttemeister Susanne
Klein Ulf
Mühle Stefanie
Wilcots Eric M.
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