Confronting Galaxy Simulations with Extended Spatially-Resolved Data
by
Sala Jappelli
Osservatorio Astronomico di Padova
Galaxies like our Milky Way can be described in terms of their structure,
dynamics, and stellar populations. Some robust correlations between
galaxy structural properties such as stellar mass, circular velocity,
and size display surprisingly small scatter over many orders of magnitude,
hinting at well-regulated galaxy formation processes. A major challenge
to understanding these scaling relations, their tight scatter, and ultimately
galaxy formation and evolution, is the elusive interplay between visible
and dark matter. Among others, the radial acceleration relation, concept
of “galaxy diversity”, intrinsic scatter in galaxy scaling relations,
and comparisons with numerical simulations of galaxy formation are
analyzed in this context. Our extensive data base of deep galaxy
rotation curves and multi-band light profiles serves as an ideal
reference for evolutionary studies of galaxies.
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Enrico Maria Corsini