The Most HI-Massive Galaxies

Details The Most HI-Massive Galaxies The Most HI-Massive Galaxies

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atnf.prop..255k&link_type=abstract

ATNF proposal P538, Semester: April, 2006

Physics

Extragalactic, Parkes

Scientific paper

We propose to obtain deep multibeam HI observations of two of the most HI-massive galaxies currently known, Malin 1 and UGC4288. Our aim is to derive accurate HI flux densities. Both are low-surface brightness galaxies at distance of 351 Mpc (Malin 1) and 433 Mpc (UGC4288), with huge disks and HI masses around 10^11 Msun. Only a handful of these spectacular disk galaxies are known, among them the recently discovered galaxy HIZOA J0836-43 (Donley et al. 2005). Parkes HI observations from October 2005 showed the feasability of the project but suffered from a baseline ripple caused by solar interference.

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