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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20230328T123000
DTEND;TZID=Atlantic/Canary:20230328T133000
UID:iactalks-1634
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1634
CREATED:2023-03-28T12:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The galaxy-halo connection in the cosmic web
DESCRIPTION:The galaxy-halo connection in the cosmic web\nDrs. Rita Tojeiro
 \n\nGalaxies and the dark matter halos in which they reside are intrinsica
 lly connected. That relationship holds information about key processes in 
 galaxy and structure formation. In this talk, I will consider how the gala
 xy-halo connection depends on position within the cosmic web - the familia
 r decomposition of large-scale structure in filaments, knots and voids. Si
 mulations demonstrate the various ways in which the cosmic web modulates t
 he growth and dynamics of halos. The extent to which the cosmic web impact
 s on galaxies is more difficult to establish. For example, galaxies might 
 be sensitive only to the evolution of the host halo, in which case any eff
 ect of the cosmic web on galaxies is secondary, and can be inferred from t
 he halo's history. There is evidence, however - from simulations and obser
 vations - that the cosmic web also impacts on the evolution of galaxies vi
 a the effect it has on the broader gas ecosystem in which they are embedde
 d, as well as through "pre-processing" effects on group scale. So, how sho
 uld we think of the cosmic web in its role as a transformative agent of ga
 laxies? And what physical processes can we convincingly constrain from obs
 ervations and simulations? In this talk I highlight recent work that addre
 sses these questions.
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