Publications (31)
Emergence of hot corona and truncated disk in simulations of accreting stellar mass black holes
Rodrigo Nemmen, Artur Vemado, Ivan Almeida +2
Stellar mass black holes in X-ray binaries (XRBs) are known to display different states characterized by different spectral and timing properties, understood in the framework of a…
The Spin of M87*
Rodrigo Nemmen
Now that the mass of the central black hole in the galaxy M87 has been measured with great precision using different methods, the remaining parameter of the Kerr metric that needs…
Spectral Learning of Magnetized Plasma Dynamics: A Neural Operator Application
Roberta Duarte, Rodrigo Nemmen, Reinaldo Santos-Lima
Fourier neural operators (FNOs) provide a mesh-independent way to learn solution operators for partial differential equations, yet their efficacy for magnetized turbulence is large…
Optical and UV Flares from Binary Black Hole Mergers in Active Galactic Nuclei
Juan C. RodrÃguez-RamÃrez, Rodrigo Nemmen, Clécio R. Bom
Stellar mass, binary black hole (BBH) mergers dominates the sources of gravitational wave (GW) events so far detected by the LIGO/Virgo/KAGRA (LVK) experiment. The origin of these…
Winds and feedback from supermassive black holes accreting at low rates: Hydrodynamical treatment
Ivan Almeida, Rodrigo Nemmen
Outflows produced by a supermassive black hole (SMBH) can have important feedback effects in its host galaxy. An unresolved question is the nature and properties of winds from SMBH…
The Eddington ratio-dependent changing look events in NGC 2992
Muryel Guolo, Daniel Ruschel-Dutra, Dirk Grupe +5
We present an analysis of historical multi-wavelength emission of the Changing Look (CL) Active Galactic Nucleus (AGN) in NGC 2992, covering epochs ranging from 1978 to 2021, as we…