The Antennae Galaxies: Archetype for Colliding Galaxies
The Antennae Galaxies: Archetype for Colliding Galaxies
The Antennae Galaxies: Archetype for Colliding Galaxies
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<strong>The</strong> <strong>Antennae</strong>: A Merger <strong>Archetype</strong> J. Hibbard, NRAO 203 rd AAS Jan 9 2004<br />
Our new model is an important step<br />
towards increasing our understanding<br />
of this merger archetype<br />
• First model which matches both the observed<br />
shape and motions of <strong>The</strong> <strong>Antennae</strong> tidal<br />
features in detail.<br />
• Parabolic orbit much more plausible starting<br />
condition<br />
• Time evolution can be compared to data from<br />
star clusters/populations/element enrichment<br />
• 3-d d structure can help us understand some<br />
outstanding puzzels
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