84 citations · 181 across the 16 of their papers we have counts for
28 papers · 1 filter
The massive black holes, high accretion rates, and non-tilted jet feedback, of jetted AGN triggered by secular processes
Chandra B. Singh, David Garofalo
That jetted active galactic nuclei (AGN) are also hosted in spiral galaxies is now well established. Our understanding of how such objects might fit in the radio loud AGN subclass…
Time delays between radio and X-ray and between narrow radio bands of Sgr A* flares in the shock oscillation model
Toru Okuda, Chandra B. Singh, Ramiz Aktar
We examine the time delay between radio and X-ray and between narrow radio frequency flares in Sagittarius A* (Sgr A*), from analyses of the synchrotron, bremsstrahlung and monochr…
Is jet re-orientation the elusive trigger for star formation suppression in radio galaxies?
David Garofalo, Emily Moravec, Duccio Macconi +1
Jet re-orientation associated with the time evolution of radio quasars explains the formation of X-shaped radio galaxies and their preference for isolated environments. But since X…
The unusual active galaxy H1821+643 and the elusive nature of FRI quasars
David Garofalo, Chandra B. Singh
The moderate spin estimate for the black hole at the center of the cool core cluster H1821+643 motivates the completion of a story about this object's origin and evolution that was…
Radiative shock oscillation model for the long-term flares of Sgr A*
T. Okuda, C. B. Singh, R. Aktar
We examine time-dependent 2D relativistic radiation MHD flows to develop the shock oscillation model for the long-term flares of Sgr A*. Adopting modified flow parameters in additi…
The astrophysics of rotational energy extraction from a black hole
David Garofalo, Chandra B. Singh
Recent work has called into question whether nature can extract the rotational energy of a black hole via electromagnetic fields by appealing to an alleged ability to absorb curren…