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Gravitational Wave Recoil Oscillations of Black Holes: Implications for Unified Models of Active Galactic Nuclei
S. Komossa, David Merritt
We consider the consequences of gravitational wave recoil for unified models of active galactic nuclei (AGNs). Spatial oscillations of supermassive black holes (SMBHs) around the c…
The X-Ray Point-Source Population of NGC 1365: The Puzzle of Two Highly-Variable Ultraluminous X-ray Sources
Iskra V. Strateva, Stefanie Komossa
We present 26 point-sources discovered with Chandra within 200" (~20kpc) of the center of the barred supergiant galaxy NGC 1365. The majority of these sources are high-mass X-ray b…
First detection of hard X-ray photons in the soft X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007: The X-ray photon distribution observed by Swift
Dirk Grupe, Karen M. Leighly, Stefanie Komossa
We report on the first detection of hard X-ray photons (E>2.5 keV) in the X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007 which was the AGN with the softest X-ray spectrum du…
Hypercompact Stellar Systems Around Recoiling Supermassive Black Holes
David Merritt, Jeremy D. Schnittman, Stefanie Komossa
A supermassive black hole ejected from the center of a galaxy by gravitational wave recoil carries a retinue of bound stars - a "hypercompact stellar system" (HCSS). The numbers an…
Evolution of tidal disruption candidates discovered by XMM-Newton
P. Esquej, R. D. Saxton, S. Komossa +8
It has been demonstrated that active galactic nuclei are powered by gas accretion onto supermassive black holes located at their centres. The paradigm that the nuclei of inactive g…
Tidal Disruption Flares from Recoiling Supermassive Black Holes
Stefanie Komossa, David Merritt
Supermassive black holes ejected from galaxy nuclei by gravitational wave recoil will carry a retinue of bound stars, even in the absence of an accretion disk. We discuss the obser…