414 citations · 6.2k across the 93 of their papers we have counts for
17 papers · 1 filter
Cosmic constraints rule out s-wave annihilation of light dark matter
Dominik R. G. Schleicher, Simon C. O. Glover, Robi Banerjee +1
Light dark matter annihilating into electron-positron pairs emits a significant amount of internal bremsstrahlung that may contribute to the cosmic gamma-ray background. The amount…
Dark stars: Implications and constraints from cosmic reionization and extragalactic background radiation
Dominik R. G. Schleicher, Robi Banerjee, Ralf S. Klessen
Dark stars powered by dark matter annihilation have been proposed as the first luminous sources in the universe. These stars are believed to form in the central dark matter cusp of…
The role of jets in the formation of planets, stars, and galaxies
Ralph E. Pudritz, Robi Banerjee, Rachid Ouyed
Astrophysical jets are associated with the formation of young stars of all masses, stellar and massive black holes, and perhaps even with the formation of massive planets. Their ro…
Ionization front-driven turbulence in the clumpy interstellar medium
Thomas Peters, Robi Banerjee, Ralf S. Klessen
We present 3D radiation-gasdynamical simulations of an ionization front running into a dense clump. In our setup, a B0 star irradiates an overdensity which is at a distance of 10 p…
Influence of primordial magnetic fields on 21 cm emission
Dominik R. G. Schleicher, Robi Banerjee, Ralf S. Klessen
Magnetic fields in the early universe can significantly alter the thermal evolution and the ionization history during the dark ages. This is reflected in the 21 cm line of atomic h…
Clump morphology and evolution in MHD simulations of molecular cloud formation
Robi Banerjee, Enrique Vazquez-Semadeni, Patrick Hennebelle +1
Abridged: We study the properties of clumps formed in three-dimensional weakly magnetized magneto-hydrodynamic simulations of converging flows in the thermally bistable, warm neutr…
Filaments, Collapse and Outflows in Massive Star Formation
Robi Banerjee, Ralph E. Pudritz
We present results from our numerical simulations of collapsing massive molecular cloud cores. These numerical calculations show that massive stars assemble quickly with mass accre…
From the warm magnetized atomic medium to molecular clouds
P. Hennebelle, R. Banerjee, E. Vazquez-Semadeni +2
{It has recently been proposed that giant molecular complexes form at the sites where streams of diffuse warm atomic gas collide at transonic velocities.} {We study the global stat…
Can Protostellar Jets Drive Supersonic Turbulence in Molecular Clouds?
Robi Banerjee, Ralf S. Klessen, Christian Fendt
Jets and outflows from young stellar objects are proposed candidates to drive supersonic turbulence in molecular clouds. Here, we present the results from multi-dimensional jet sim…
Massive star formation via high accretion rates and early disk-driven outflows
Robi Banerjee, Ralph E. Pudritz
We present an investigation of massive star formation that results from the gravitational collapse of massive, magnetized molecular cloud cores. We investigate this by means of hig…
Supersonic turbulence, filamentary accretion,and the rapid assembly of massive stars and disks
Robi Banerjee, Ralph E. Pudritz, Dave W. Anderson
We present a detailed computational study of the assembly of protostellar disks and massive stars in molecular clouds with supersonic turbulence. We follow the evolution of large s…
Nonlinear Evolution of Cosmic Magnetic Fields and Cosmic Microwave Background Anisotropies
Hiroyuki Tashiro, Naoshi Sugiyama, Robi Banerjee
In this work we investigate the effects of the primordial magnetic fields on cosmic microwave background anisotropies (CMB). Based on cosmological magnetohydrodynamic (MHD) simulat…
Outflows and Jets from Collapsing Magnetized Cloud Cores
Robi Banerjee, Ralph E. Pudritz
Star formation is usually accompanied by outflow phenomena. There is strong evidence that these outflows and jets are launched from the protostellar disk by magneto-rotational proc…
The Disc-Jet Connection
Ralph E. Pudritz, Robi Banerjee
A large body of theoretical and computational work shows that jets - modelled as magnetized disk winds - exert an external torque on their underlying disks that can efficiently rem…
The Evolution of Cosmic Magnetic Fields: From the Very Early Universe, to Recombination, to the Present
Robi Banerjee, Karsten Jedamzik
(abridged) A detailed examination of the evolution of stochastic magnetic fields between high cosmic temperatures and the present epoch is presented. A simple analytical model matc…
The Formation and Evolution of Protostellar Disks; 3D AMR Hydro-Simulations of Collapsing, Rotating Bonnor-Ebert-Spheres
Robi Banerjee, Ralph E. Pudritz, Lindsay Holmes
We present a detailed study of the collapse of molecular cloud cores using high resolution 3D adaptive mesh refinement (AMR) numerical simulations. In this first in a series of inv…
Are Cluster Magnetic Fields Primordial ?
Robi Banerjee, Karsten Jedamzik
We present results of a detailed and fully non-linear numerical and analytical investigation of magnetic field evolution from the very earliest cosmic epochs to the present. We fin…