3 papers
astro-ph2003
Long Term Profile Variability of Double-Peaked Emission Lines in AGNs
Karen T. Lewis, Michael Eracleous, Jules P. Halpern +1
An increasing number of AGNs exhibit broad, double-peaked Balmer emission lines, which are thought to arise from the outer regions of the accretion disk which fuels the AGN. The li…
astro-ph2001
The Small-scale Structure of N103B - Nature of Nuture?
Karen T. Lewis, David N. Burrows, John P. Hughes +3
We present new results from a 40.8 ks Chandra ACIS observation of the young supernova remnant (SNR) N103B located in the Large Magellanic Cloud. The high resolution Chandra image r…
astro-ph2001
Emission Line Diagnostics of Accretion Flows in Weak-Line Radio Galaxies
Karen T. Lewis, Michael Eracleous, Rita M. Sambruna
In recent surveys of Radio-loud AGN, a new sub-class of objects, known as Weak-Line Radio Galaxies (WLRGs) has emerged. These radio galaxies have only weak, low-ionization optical…