activity
20122024
most citedDynamo saturation in direct simulations of the multi-phase turbulent interstellar medium

40 citations · 156 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.GA2024

Non-linear magnetic buoyancy instability and galactic dynamos

Yasin Qazi, Anvar. Shukurov, Frederick. A. Gent +2

Magnetic buoyancy (MBI) and Parker instabilities are strong, generic instabilities expected to occur in most astrophysical systems with sufficiently strong magnetic fields. In gala…

astro-ph.CO2024

Cosmic evolution of the Faraday rotation measure in the intracluster medium of galaxy clusters

Yoan Rappaz, Jennifer Schober, Abhijit Bhausaheb Bendre +2

Radio observations have revealed magnetic fields in the intracluster medium (ICM) of galaxy clusters nearly in equipartition with turbulence. This suggests magnetic field amplifica…

astro-ph.GA2023★ 10 cited

Nonlinear magnetic buoyancy instability and turbulent dynamo

Yasin Qazi, Anvar Shukurov, Devika Tharakkal +2

Stratified disks with strong horizontal magnetic fields are susceptible to magnetic buoyancy instability (MBI). Modifying the magnetic field and gas distributions, this can play an…

astro-ph.HE2023★ 7 cited

Shedding light on the MRI driven dynamo in a stratified shearing box

Prasun Dhang, Abhijit Bendre, Kandaswamy Subramanian

We study the magneto-rotational instability (MRI) driven dynamo in a geometrically thin disc () using stratified zero net flux (ZNF) shearing box simulations. We find tha…

astro-ph.GA2023★ 8 cited

Iterative removal of sources to model the turbulent electromotive force

Abhijit B. Bendre, Jennifer Schober, Prasun Dhang +1

We describe a novel method to compute the components of dynamo tensors from direct magnetohydrodynamic (MHD) simulations. Our method relies upon an extension and generalisation of…

astro-ph.GA2022★ 2 cited

Observational Signatures of Galactic Turbulent Dynamos

Yann Carteret, Abhijit B. Bendre, Jennifer Schober

We analyse the observational signatures of galactic magnetic fields that are self-consistently generated in magnetohydrodynamic simulations of the interstellar medium through turbu…

astro-ph.GA2021★ 12 cited

Non-locality of the Turbulent Electromotive Force

Abhijit B. Bendre, Kandaswamy Subramanian

The generation of large-scale magnetic fields () in astrophysical systems is driven by the mean turbulent electromotive force (), the cros…

astro-ph.GA2020★ 2 cited

On the Combined Role of Cosmic Rays and Supernova-Driven Turbulence for Galactic Dynamos

Abhijit B. Bendre, Detlef Elstner, Oliver Gressel

Large-scale coherent magnetic fields observed in the nearby galaxies are thought to originate by a mean-field dynamo. This is governed via the turbulent electromotive force (EMF, $…

astro-ph.HE2019★ 26 cited

Characterising the Dynamo in a Radiatively Inefficient Accretion Flow

Prasun Dhang, Abhijit Bendre, Prateek Sharma +1

We explore the MRI driven dynamo in a radiatively inefficient accretion flow (RIAF) using the mean field dynamo paradigm. Using singular value decomposition (SVD) we obtain the lea…

astro-ph.GA2019★ 19 cited

Turbulent transport coefficients in galactic dynamo simulations using singular value decomposition

Abhijit B. Bendre, Kandaswamy Subramanian, Detlef Elstner +1

Coherent magnetic fields in disc galaxies are thought to be generated by a large-scale (or mean-field) dynamo operating in their interstellar medium. A key driver of mean magnetic…

astro-ph.GA2019★ 8 cited

GMRT observations of a first sample of Extremely Inverted Spectrum Extragalactic Radio Sources (EISERS) candidates in the Northern sky

Mukul Mhaskey, Gopal-Krishna, Surajit Paul +4

We present an extension of our search for Extremely Inverted Spectrum Extragalactic Radio Sources (EISERS) to the northern celestial hemisphere. With an inverted radio spectrum of…

astro-ph.GA2015★ 40 cited

Dynamo saturation in direct simulations of the multi-phase turbulent interstellar medium

A. Bendre, O. Gressel, D. Elstner

The ordered magnetic field observed via polarized synchrotron emission in nearby disc galaxies can be explained by a mean-field dynamo operating in the diffuse interstellar medium…

astro-ph.GA2012★ 22 cited

On the magnetic quenching of mean-field effects in supersonic interstellar turbulence

Oliver Gressel, Abhijit Bendre, Detlef Elstner

The emergence of large-scale magnetic fields observed in the diffuse interstellar medium is explained by a turbulent dynamo. The underlying transport coefficients have previously b…