Formation of Ellipticals
• Many have shells (20%).  Not every merger event
will produce shells (average consumed then is 4-
5).
• Are all ellipticals merger products?
• Globular clusters and issue (common around
ellipticals, less so around spirals).
• Remember that starbursts accompany mergers –
ULIRGS – and make new GCs?
• Issue of heirarchical galaxy formation coming