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High-Resolution Measurements of the Halos of Four Dark Matter-Dominated Galaxies: Deviations from a Universal Density Profile
Joshua D. Simon, Alberto D. Bolatto, Adam Leroy +2
We derive rotation curves for four nearby, low-mass spiral galaxies and use them to constrain the shapes of their dark matter density profiles. This analysis is based on high-resol…
The Initial Mass Function of GMCs
Leo Blitz, Erik Rosolowsky
The properties of GMCs in several Local Group galaxies are quantified and compared. It is found that the mass spectrum of GMCs varies from galaxy to galaxy. The variations are sign…
GMC Formation in M33: the Role of Pressure
Leo Blitz, Erik Rosolowsky
We present a complete map of the Giant Molecular Clouds in M33 and show that they lie exclusively on filaments of HI. The GMCs are localized on the extended HI filaments, and HI fi…
The Role of Pressure in GMC Formation
Leo Blitz, Erik Rosolowsky
We examine the hypothesis that hydrostatic pressure alone determines the ratio of atomic to molecular gas averaged over a particular radius in disk galaxies. The hypothesis implies…
A Search for Kinematic Evidence of Radial Gas Flows in Spiral Galaxies
Tony Wong, Leo Blitz, Albert Bosma
CO and HI velocity fields of seven nearby spiral galaxies, derived from radio-interferometric observations, are decomposed into Fourier components whose radial variation is used to…