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AGNs and Starbursts: What Is the Real Connection?
Luis C. Ho
It is now widely believed that the growth of massive black holes is closely linked to the formation of galaxies, but there have been few concrete constraints on the actual physical…
Is the Broad-Line Region Clumped or Smooth? Constraints from the H alpha Profile in NGC 4395, the Least Luminous Seyfert 1 Galaxy
Ari Laor, Aaron J. Barth, Luis C. Ho +1
The origin and configuration of the gas which emits broad lines in Type I active galactic nuclei is not established yet. The lack of small-scale structure in the broad emission-lin…
The Radio Quiescence of Active Galaxies with High Accretion Rates
Jenny E. Greene, Luis C. Ho, James S. Ulvestad
We present 6 cm Very Large Array observations of the Greene & Ho (2004) sample of 19 low-mass active galaxies with high accretion rates. This is one of the only studies of a unifor…
Probing the Coevolution of Supermassive Black Holes and Quasar Host Galaxies
Chien Y. Peng, Chris D. Impey, Luis C. Ho +2
At low redshift, there are fundamental correlations between the mass of supermassive black holes (MBH) and the mass (Mbulge) and luminosity of the host galaxy bulge. We investigate…
M82, Starbursts, Star Clusters, and the Formation of Globular Clusters
Eric Keto, Luis C. Ho, K. Y. Lo
We observed the nearby starburst galaxy M82 in CO in the higher frequency (2--1) transition to achieve an angular resolution below 1 arc second or 17 pc at the target. We resolved…
Mass distribution of spiral galaxies from characteristics of spiral structure: Constraints on galaxy formation models
Marc S. Seigar, Aaron J. Barth, James Bullock +1
Recently, it has been shown that a correlation exists between the rate of shear and the spiral arm pitch angle in disk galaxies. The rate of shear depends upon the shape of the rot…