496 citations · 1.9k across the 60 of their papers we have counts for
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Subparsec-scale HI in the nucleus of NGC 4151
C. G. Mundell, J. M. Wrobel, A. Pedlar +1
We present sensitive, high-resolution 21-cm VLBA+VLA observations of the radio jet and nuclear HI absorption in NGC 4151. The 25-mas (1.6-pc) resolution continuum image reveals a h…
Parsec-Scale Jets and Tori in Seyfert Galaxies
A. L. Roy, J. M. Wrobel, A. S. Wilson +6
What causes the dichotomy between very powerful and very weak radio emission from AGNs? Perhaps the engines are the same but the jets get disrupted by dense ISM in radio-quiet obje…
VLBA Observations Of A Sample Of Nearby FR I Radio Galaxies
Chun Xu, Stefi A. Baum, Christopher P. O'Dea +2
We observed 17 nearby low luminosity FR I radio galaxies using the NRAO Very Long Baseline Array (VLBA) at 1.67 GHz, as part of a multi-wavelength study of a complete sample of 21…
Accretion Rates onto Massive Black Holes in Four Quiescent Elliptical Galaxies
J. M. Wrobel, J. R. Herrnstein
Four quiescent elliptical galaxies were imaged with the NRAO VLA at 8.5 GHz. Within the context of canonical advection-dominated accretion flows (ADAFs), these VLA images plus publ…