NGC5291 - a case study of collisional debris

Details NGC5291 - a case study of collisional debris NGC5291 - a case study of collisional debris

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atnf.prop..817k&link_type=abstract

ATNF proposal C1648, Semester: April, 2007

Computer Science

Extragalactic, Atca

Scientific paper

We propose to image the extended gas distribution and kinematics of the peculiar galaxy system NGC5291 (D = 56 Mpc) and the surrounding cluster members. The NGC5291 system can be regarded as the "Rosetta Stone" for the evolution and formation of galaxies. It is well known for its gigantic intergalactic HI ring (diameter about 10' or 200 kpc; MHI = 3.6 x 10^10 Msun) that partially surrounds the lenticular galaxy NGC5291 and the peculiar Seashell galaxy and contains a nursery of newly forming galaxies. The proposed observations will provide high surface brightness sensitivity and good velocity resolution allowing us to study in detail the origin, dynamics, and dark matter content of the system and compare with recent numerical simulations.

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