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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20230525T103000
DTEND;TZID=Atlantic/Canary:20230525T113000
UID:iactalks-1682
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1682
CREATED:2023-05-25T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The universality of the HI to dark matter halo mass ratio for isola
 ted disk galaxies
DESCRIPTION:The universality of the HI to dark matter halo mass ratio for i
 solated disk galaxies\nDr. Marie Korsaga\n\nOne of the most active areas o
 f research of the last decade is undoubtedly the study of the effects of b
 aryons on the observed dynamics of galaxies. This particularly led to the 
 establishment of some fundamental scaling relations, which characterise th
 e dependence of the abundance of baryons on the properties of galaxies' da
 rk matter haloes. Among these fundamental relations, the stellar–to-
 halo mass relation appears to be one of the most investigated.In this talk
 , I will present the less commonly explored neutral hydrogen-to-halo mass 
 relation constructed using high-quality extended HI rotation curves of iso
 lated rotationally-supported disk galaxies, selected from the SPARC and LI
 TTLE THINGS databases. I will discuss how we constrain the dark matter hal
 o of these galaxies using a Navarro-Frenk-White cuspy density profile and 
 a semi-analytic Dekel-Zhao density profile and how we investigate the scal
 ing relations between baryons and halo parameters.
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