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Low-Luminosity AGNs at the Highest Resolution: Jets or Accretion Flows?
James M. Anderson, James S. Ulvestad, Luis C. Ho
Six low-luminosity active galactic nuclei have been imaged at multiple frequencies from 1.7--43 GHz (2.3--15 GHz for three of the galaxies) using the Very Long Baseline Array. In s…
A HST Census of Nuclear Star Clusters in Late-Type Spiral Galaxies: II. Cluster Sizes and Structural Parameter Correlations
T. Boeker, M. Sarzi, D. E. McLaughlin +4
We investigate the structural properties of nuclear star clusters in late-type spiral galaxies. More specifically, we fit analytical models to HST images of 39 nuclear clusters in…
Deep Photometry in a Remote M31 Major Axis Field Near G1
R. Michael Rich, David B. Reitzel, Puragra Guhathakurta +2
We present photometry from Hubble Space Telescope (HST)/Wide Field Planetary Camera 2 parallel imagery of a remote M31 field at a projected distance of about 34 kpc from the nucleu…
Iron Emission in the z=6.4 Quasar SDSS J114816.64+525150.3
A. J. Barth, P. Martini, C. H. Nelson +1
We present near-infrared J and K-band spectra of the z = 6.4 quasar SDSS J114816.64+525150.3 obtained with the NIRSPEC spectrograph at the Keck-II telescope, covering the rest-fram…
Kinematics of Ten Early-Type Galaxies from HST and Ground-Based Spectroscopy
Jason Pinkney, Karl Gebhardt, Ralf Bender +11
We present stellar kinematics for a sample of 10 early-type galaxies observed using the STIS aboard the Hubble Space Telescope, and the Modular Spectrograph on the MDM Observatory…
The Central Engines of Low-Luminosity AGNs
Luis C. Ho
I summarize the main characteristics of AGNs in nearby galaxies and present a physical picture of their central engines.