Context. Many low-redshift active galactic nuclei harbor a supermassive black hole accreting matter at low or medium rates. At such rates, the accretion flow usually consists of a cold optically thick disk, plus a hot, low density, collisionless corona. In the latter component, charged particles can be accelerated to high energies by various mechanisms. Aims. We aim to investigate, in detail, nonthermal processes in hot accretion flows onto supermassive black holes, covering a wide range of accretion rates and luminosities. Methods. We developed a model consisting of a thin Shakura-Sunyaev disk plus an inner hot accretion flow or corona, modeled as a radiatively inefficient accretion flow, where nonthermal processes take place. We solved th...
I present results from numerical simulations of gas dynamics outside luminous accretion disks in act...
The environs of supermassive black holes are among the universe's most extreme phenomena. Understand...
Two families of models are currently considered to describe an accretion flow onto black holes and p...
Context. Many low-redshift active galactic nuclei harbor a supermassive black hole accreting matter ...
Context. Accreting black holes in galactic X-ray sources are surrounded by hot plasma. The innermost...
Context. Accreting black holes in galactic X-ray sources are surrounded by hot plasma. The innermost...
Context: Galactic black hole coronae are composed of a hot, magnetized plasma. The spectral energy d...
Black hole accretion flows can be divided into two broad classes: cold and hot. Cold accretion flows...
Context. Galactic black hole coronae are composed of a hot, magnetized plasma. The spectral energy d...
The hot accretion flows upon black holes are usually optically thin two-temperature plasmas inwhich ...
The hot accretion flows upon black holes are usually optically thin two-temperature plasmas in which...
Context: Galactic black hole coronae are composed of a hot, magnetized plasma. The spectral energy d...
Context. The radio emission mechanism in active galactic nuclei (AGNs) with high accretion rates is ...
Accretion disks around rapidly rotating black holes provide one of the few plausible models for the ...
We study the X-ray spectra of tenuous, two-temperature accretion flows using a model involving an ex...
I present results from numerical simulations of gas dynamics outside luminous accretion disks in act...
The environs of supermassive black holes are among the universe's most extreme phenomena. Understand...
Two families of models are currently considered to describe an accretion flow onto black holes and p...
Context. Many low-redshift active galactic nuclei harbor a supermassive black hole accreting matter ...
Context. Accreting black holes in galactic X-ray sources are surrounded by hot plasma. The innermost...
Context. Accreting black holes in galactic X-ray sources are surrounded by hot plasma. The innermost...
Context: Galactic black hole coronae are composed of a hot, magnetized plasma. The spectral energy d...
Black hole accretion flows can be divided into two broad classes: cold and hot. Cold accretion flows...
Context. Galactic black hole coronae are composed of a hot, magnetized plasma. The spectral energy d...
The hot accretion flows upon black holes are usually optically thin two-temperature plasmas inwhich ...
The hot accretion flows upon black holes are usually optically thin two-temperature plasmas in which...
Context: Galactic black hole coronae are composed of a hot, magnetized plasma. The spectral energy d...
Context. The radio emission mechanism in active galactic nuclei (AGNs) with high accretion rates is ...
Accretion disks around rapidly rotating black holes provide one of the few plausible models for the ...
We study the X-ray spectra of tenuous, two-temperature accretion flows using a model involving an ex...
I present results from numerical simulations of gas dynamics outside luminous accretion disks in act...
The environs of supermassive black holes are among the universe's most extreme phenomena. Understand...
Two families of models are currently considered to describe an accretion flow onto black holes and p...