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3D spatio-kinematic modeling of Abell 48, a planetary nebula around a Wolf-Rayet [WN] star
A. Danehkar
The planetary nebula (PN) Abell 48 (PN G029.0+00.4) is around a rare Wolf-Rayet [WN5] star whose stellar history is as yet unknown. Using the integral field observations of the H$α…
Non-equilibrium Photoionization and Hydrodynamic Simulations of Starburst-driven Outflows
A. Danehkar, M. S. Oey, W. J. Gray
Starburst-driven galactic outflows in star-forming galaxies have been observed to contain complex thermal structures and emission line features that are difficult to explain by adi…
Dual Fields of Massive/Massless Gravitons in IR/UV Completions
Ashkbiz Danehkar, Hassan Alshal, Thomas L. Curtright
In the holographic picture, the Brout-Englert-Higgs (BEH) mechanism in d-dimensional Yang-Mills theories is conjectured to provide a Higgs-like mechanism for gravity in d+1 dimensi…
Morpho-kinematic properties of Wolf-Rayet planetary nebulae
A. Danehkar
The majority of planetary nebulae (PNe) show axisymmetric morphologies, whose causes are not well understood. In this work, we present spatially resolved kinematic observations of…
Catastrophic Cooling in Superwinds. II. Exploring the Parameter Space
Ashkbiz Danehkar, M. S. Oey, William J. Gray
Superwinds and superbubbles driven by mechanical feedback from super star clusters (SSCs) are common features in many star-forming galaxies. While the adiabatic fluid model can wel…
Physical and chemical properties of Wolf-Rayet planetary nebulae
A. Danehkar
Wolf-Rayet ([WR]) and weak emission-line () central stars of planetary nebulae (PNe) have hydrogen-deficient atmospheres, whose origins are not well understood. In the presen…