HI Velocity Dispersions and Flaring: Disk Masses and the Shape of Dark Matter Halos

P. C. van der Kruit*, J. C. O'Brien, K. C. Freeman

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

1 Citaat (Scopus)

Samenvatting

I briefly review the use of measurements of the HI velocity dispersion and gas layer flaring in galaxy disks to determine the baryonic mass of the disks. I compare that to results from stellar dynamics. In systems with low-mass disks, flaring can also provide information on the flattening of the dark matter halos. New results from the thesis of Jess O'Brien are summarized, in particular an application to UGC 7321 that shows the dark matter halo in that galaxy to be close to spherical.

Originele taal-2English
TitelHunting for the Dark
SubtitelThe Hidden Side of Galaxy Formation
RedacteurenVP Debattista, CC Popescu
Plaats van productieMelville
UitgeverijAMER INST PHYSICS
Pagina's387-390
Aantal pagina's4
ISBN van geprinte versie978-0-7354-0786-2
DOI's
StatusPublished - 2010
EvenementInternational Conference on Hunting for the Dark: The Hidden Side of Galaxy Formation - , Malta
Duur: 19-okt-200923-okt-2009

Publicatie series

NaamAIP Conference Proceedings
UitgeverijAMER INST PHYSICS
Volume1240
ISSN van geprinte versie0094-243X

Other

OtherInternational Conference on Hunting for the Dark: The Hidden Side of Galaxy Formation
Land/RegioMalta
Periode19/10/200923/10/2009

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