activity
19942005
most citedSingle and binary Black Holes and their active environment

3 citations · 5 across the 6 of their papers we have counts for

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5 papers · 1 filter

astro-ph2000

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…

astro-ph2000

Blazars in Low-Luminosity and Radio-Weak AGN?

Heino Falcke, Sera Markoff, Peter L. Biermann

Typical blazars seem to be associated with FR I and FR II radio galaxies and radio-loud quasars. However, what happens at lower powers? Do blazars exist in low-luminosity AGN or do…

astro-ph2000

III Zw 2: superluminal expansion and compact lobe expansion in a Seyfert galaxy

A. Brunthaler, H. Falcke, G. C. Bower +3

So far, all relativistically boosted jets with superluminal motion have only been detected in typical radio galaxies with early type host galaxies. We have now discovered superlumi…

astro-ph2000

Radio-Variability in Radio-Quiet Quasars and Low-Luminosity AGN

Heino Falcke, Joseph Lehar, Richard Barvainis +2

We report on two surveys of radio-weak AGN to look for radio variability. We find significant variability with an RMS of 10-20% on a timescale of months in radio-quiet and radio-in…

astro-ph2000

III Zw 2, the first superluminal jet in a Seyfert galaxy

Andreas Brunthaler, Heino Falcke, Geoffrey C. Bower +6

So far all relativistically boosted jets with superluminal motion have only been detected in typical radio galaxies with early type host galaxies. We have now discovered superlumin…