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SUMMARY:Shaun Brown: The formation\, growth and evolution of the smallest 
 galaxies
DTSTART:20260127T121500Z
DTEND:20260127T131500Z
DTSTAMP:20260310T161200Z
UID:indico-event-9532@indico.fysik.su.se
CONTACT:azadeh.fattahi@fysik.su.se\;alexander.burgman@fysik.su.se
DESCRIPTION:Dwarf galaxies offer a powerful probe of galaxy formation over
  a wide range of spatial and temporal scales. Their shallow potentials mak
 e them particularly sensitive to many forms of feedback\, while their earl
 y formation histories provide a detailed view of star formation in the ear
 ly universe. While these systems offer promising laboratories to test vari
 ous galaxy formation models there is not yet a consensus on the key physic
 al mechanisms necessary to produce a realistic population of these galaxie
 s.\n \nTo address these questions\, I present a new simulation suite of 6
 5 dwarf galaxies run at an unprecedented resolution of 4 M_sun using the L
 YRA model which is able to fully resolve individual stars and their subseq
 uent supernova. These systems are self consistently evolved in a fully cos
 mological context modelling the initial collapse of these structures\, the
  formation of their first stars\, their quenching due to reionisation and 
 as well as dynamically evolving their stellar populations through to today
 . In this talk I will present some initial results of these new simulation
 s\, particularly focusing on why some of the smallest dark matter haloes a
 re able to form start while others remain truly dark. The exquisite detail
  offered by these simulations make them an invaluabletool for further unde
 rstanding the formation of both classical and ultra-faint dwarf galaxies\,
  as well as making key predictions for both current and future surveys\, s
 uch as DESI\, LSST and Euclid.\n \nAbout the speaker: Shaun Brown is a p
 ostdoctoral fellow at the Institute for Computational Cosmology of Durham 
 University (UK). His research interests are galaxy and structure formation
 \, in particular exploring the predictions of the standard model of cosmol
 ogy on small scales\, the nature of dark matter and formation of low mass 
 (dwarf) galaxies\, using cosmological simulations.   \n\nhttps://indico.
 fysik.su.se/event/9532/
LOCATION:FB55 (AlbaNova Main Building)
URL:https://indico.fysik.su.se/event/9532/
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