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SUMMARY:The oblateness of the dark matter halos of nearby galaxies and its
  correlation with gas mass fractions
DTSTART;VALUE=DATE-TIME:20230324T085500Z
DTEND;VALUE=DATE-TIME:20230324T091000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115757Z
UID:indico-contribution-214@meetings.aip.de
DESCRIPTION:Speakers: Mousumi Das (Indian Institute of Astrophysics)\nWe p
 resent a method to measure the the oblateness parameter q of the dark matt
 er halo of gas rich galaxies that have extended HI disks. We have applied 
 our model to a sample of 20 nearby galaxies that are gas rich and close to
  face-on\, of which 6 are large disk galaxies\, 8 have moderate stellar ma
 sses and 6 are low surface brightness dwarf galaxies. We have used the sta
 cked HI velocity dispersion and HI surface densities to derive q in the ou
 ter disk regions. Our most important result is that gas dominated galaxies
  (such as LSB dwarfs) that have M(gas)/M(baryons)>0.5 have oblate halos (q
  \n\nhttps://meetings.aip.de/event/20/contributions/214/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/20/contributions/214/
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