activity
20192026
most citedMagnetic stochasticity and diffusion

13 citations · 41 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.EP2026★ 1 cited

Complex gas flows in magnetized protoplanetary disks promote the formation of dust traps at low fragmentation velocities

Vignesh Vaikundaraman, Joanna Drazkowska, Nerea Gurrutxaga +1

Non-ideal magnetohydrodynamic simulations of protoplanetary disks show a plethora of complex gas structures, including winds, rings, and gaps. These affect dust transport and help…

astro-ph.EP2026

A Monte Carlo method for tracking dust properties during coagulation in protoplanetary disks

Nerea Gurrutxaga, Vignesh Vaikundaraman, Joanna Drazkowska

Dust growth is a crucial step in planet formation, and the efficiency of this process is controlled by the physical and chemical properties of the dust grains. Monte Carlo-based me…

astro-ph.EP2026

Carbonaceous Chondrites provide evidence for late-stage planetesimal formation in a pressure bump

Nerea Gurrutxaga, Joanna Drazkowska, Vignesh Vaikundaraman +1

Carbonaceous chondrites are samples from planetesimals that formed 2-4 million years after solar system formation began. They consist of distinct dust components formed at differen…

astro-ph.EP2026

Turning the knobs on dust evolution: Comparing codes, parameters and their effects on planet formation and disc observables

Linn E. J. Eriksson, Thomas Pfeil, Nicolas Kaufmann +1

Protoplanetary discs contain a wide range of dust sizes that influence their thermal structure and planet formation processes such as planetesimal formation and pebble accretion. D…

astro-ph.IM2025★ 1 cited

mcdust: A 2D Monte Carlo code for dust coagulation in protoplanetary disks

Vignesh Vaikundaraman, Nerea Gurrutxaga, Joanna Drążkowska

mcdust is a parallel simulation code for dust evolution in protoplanetary disks. The code is written in FORTRAN90 and parallelised with OpenMP. The code models dust collisional evo…

astro-ph.EP2025

Can Close-In Exoplanets form by Pebble Accretion?

Jayashree Narayan, Joanna Drazkowska, Vignesh Vaikundaraman

Pebble accretion is the leading theory for the formation of exoplanets more massive than the Earth. Many parameters influence planet growth in the pebble accretion models. In this…

astro-ph.EP2025★ 10 cited

Refractory carbon depletion by photolysis through dust collisions and vertical mixing

Vignesh Vaikundaraman, Joanna Drazkowska, Fabian Binkert +2

The inner Solar System is depleted in refractory carbon in comparison to the interstellar medium and the depletion likely took place in the protoplanetary disk phase of the Solar S…

astro-ph.SR2024

Twins in Diversity: Understanding circumstellar disk evolution in the twin clusters of W5 complex

Belinda Damian, Jessy Jose, Swagat R. Das +6

Young star-forming regions in massive environments are ideal test beds to study the influence of surroundings on the evolution of disks around low-mass stars. We explore two distan…

astro-ph.HE2020★ 5 cited

Power and spatial complexity in stochastic reconnection

Amir Jafari, Ethan Vishniac, Vignesh Vaikundaraman

The level of spatial complexity associated with a given vector field on an arbitrary range of scales \iffalse can be quantified by a simple, time-dependent function…

astro-ph.HE2019★ 11 cited

Statistical Analysis of Stochastic Magnetic Fields

Amir Jafari, Ethan Vishniac, Vignesh Vaikundaraman

Previous work has introduced scale-split energy density ψfor a given vector field B in order to quantify the field stochasticity S(t). Application to turbulent magnetic fields lead…

astro-ph.HE2019★ 13 cited

Magnetic stochasticity and diffusion

Amir Jafari, Ethan Vishniac, Vignesh Vaikundaraman

We develop a quantitative relationship between magnetic diffusion and the level of randomness, or stochasticity, of the diffusing magnetic field in a magnetized medium. A general m…