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SUMMARY:The details in the DEVILS: Exploring the co-evolution of galaxies 
 and halos over the last 8 billion years - Luke Davies (ICRAR)
DTSTART:20180413T103000Z
DTEND:20180413T113000Z
UID:TALK101695@talks.cam.ac.uk
CONTACT:28811
DESCRIPTION:Over the past two decades large galaxy evolution-focused surve
 ys\n(such as SDSS\, 2dfGRS\, GAMA) have unequivocally changed our view of 
 the\nlocal Universe in terms of large-scale structure\, the astrophysical\
 nprocesses occurring within galaxies and the effect of environment on gala
 xy\nproperties. However\, it is not the processes occurring today which fo
 rged\nthe z ~ 0 Universe\, but the factors which drove galaxy evolution an
 d structure\nformation over the proceeding 12 billion years. \n\nAt inter
 mediate redshifts (0.3 < z < 1.0 - the last 3-8 billion years) many of\nth
 ese local relations were forged: roughly half of all stars were born\,\nga
 laxies underwent significant mass\, size and morphology evolution\,\nenvir
 onmental trends evolved dramatically and Lambda-CDM predicts a strong\nand
  testable evolution of the halo mass function. However\, this key epoch in
 \nthe formation of the z~0 Universe has been left largely unexplored due t
 o\nthe lack of the high completeness spectroscopic samples required to bot
 h\ndetermine structure on sub-Mpc scales (groups/pairs/mergers) and to rem
 ove\ncomplex selection biases when forming a spectroscopic sample.\n\nHere
  I introduce the Deep Extragalactic VIsible Legacy Survey (DEVILS\n- devi
 lsurvey.org) a new large program with the Anglo\nAustralian Telescope\, wh
 ich will probe ~ 60\,000 galaxies to Y-mag < 21.2 over\n~6deg^2  all with 
 exisiting/upcoming extensive multi-wavelength data from\nx-ray to low freq
 uency radio. Uniquely\, DEVILS will reach the high levels of\ncompleteness
  (>90%) previously only obtainable in the local Universe (i.e.\nGAMA/SDSS)
  allowing us to directly relate the evolution of galaxy properties\nwith t
 he multi-scale environment in which they reside. DEVILS will also\nconstru
 ct the first robust and complete (to 10^13Msun) group catalogue to\nz~0.8\
 , providing a stringent constraints of the evolution of the high mass\nend
  of the halo mass function\; a strong test for Lambda-CDM.\n\nFinally\, I 
 will discuss future prospects with ESO-4MOST’s Wide Area VISTA\nExtragal
 actic Survey Deep (WAVES-deep - wavesurvey.org)\nwhich\, in the next deca
 de\, will probe to a similar depths as DEVILS but\ncover 15 times the area
 \; targeting ~1 million galaxies at 0.2 < z < 1.0.
LOCATION:Kavli Large Meeting Room\, Kavli Building
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