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NEWS AND NOTES
- Final schedule and participant list has been posted.
- There are three oral poster sessions; contact organizers to present.
- There will be no registration fee.
- There will be no proceedings; talks will be placed
online.
OVERVIEW
It is now well
established that that the baryon to dark
matter mass ratio is 15-20%. On scales of galaxy
clusters, the observed baryons fall just slightly short of this
prediction,
but on galaxy scales the observed baryons fall well short.
For instance, an inventory of baryons in and around the Milky Way
reveals at best one-quarter of the expected baryons . Moreover, the
build-up of stars in the Galaxy requires an accretion rate of 1-2 solar
masses per year, substantially larger than what can be accounted for by
direct observation. Taken together, these statements suggest that the
majority of baryons in and around galaxies have yet to be observed.
Understanding and quantifying these missing baryons is essential for
obtaining a complete picture of galaxy formation and evolution.
In this
workshop, we revisit the baryon inventory on scales of galaxies and
galaxy groups in light of new observations, improving numerical
simulations, and
recent constraints from particle physics. Are baryons hidden during
accretion? Are baryons removed by feedback? What clues
do high redshift galaxies offer? What fraction of baryons are in a
hot phase? What is the stellar fossil
record telling us? How much of the action are we currently not
detecting? Where do missing socks fit in to all of this?
What
impact will the next generation of facilities have on these issues?
This workshop will bring together observers and theorists from
sub-galactic to
cosmological scales to make progress on this critical
frontier of galaxy formation.
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