The dark matter halo density profile, spiral arm morphology and black hole mass of M33

Details The dark matter halo density profile, spiral arm morphology and black hole mass of M33 The dark matter halo density profile, spiral arm morphology and black hole mass of M33

2011-03-16

arxiv.org/abs/1103.3200v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

18 pages, accepted for publication

Scientific paper

10.5402/2011/725697

In this paper, we investigate the dark matter halo density profile of M33. We find that the HI rotation curve of M33 is best described by a NFW dark matter halo density profile model, with a halo concentration of cvir = 4.0\pm1.0 and a virial mass of Mvir = (2.2\pm0.1)\times10^11 Msun. We go on to use the NFW concentration (cvir)of M33, along with the values derived for other galaxies (as found in the literature), to show that cvir correlates with both spiral arm pitch angle and supermassive black hole mass.

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