30 citations · 77 across the 8 of their papers we have counts for
8 papers
Morphokinematic modelling of the point-symmetric Cat's Eye, NGC 6543: Ring-like remnants of a precessing jet
Ryan Clairmont, Wolfgang Steffen, Nico Koning
The planetary nebula known as the Cat's Eye Nebula (NGC 6543) has a complex, point-symmetric morphology that cannot be fully explained by the current theory of planetary nebula for…
The Superluminous (Type I) Supernova ASASSN-15lh : A case for a Quark-Nova inside an Oxygen-type Wolf-Rayet supernova remnant
Rachid Ouyed, Denis Leahy, Luis Welbanks +1
We show that a Quark-Nova (QN; the explosive transition of a neutron star to a quark star) occurring a few days following the supernova explosion of an Oxygen-type Wolf-Rayet (WO)…
HST-Scale 3D simulations of MHD disc winds : A rotating two-component jet structure
Jan Staff, Nico Koning, Rachid Ouyed +2
We present the results of large scale, three-dimensional magneto-hydrodynamics simulations of disc-winds for different initial magnetic field configurations. The jets are followed…
SHAPEMOL: a 3-D code for calculating CO line emission in planetary and protoplanetary nebulae. Detailed model fitting of the complex nebula NGC 6302
M. Santander-Garcia, V. Bujarrabal, N. Koning +1
Modern instrumentation in radioastronomy constitutes a valuable tool for studying the Universe: ALMA has reached unprecedented sensitivities and spatial resolution, while Herschel/…
The puzzling early detection of low velocity 56Ni decay lines in SN 2014J: Hints of a compact remnant
Rachid Ouyed, Denis Leahy, Nico Koning +1
We show that the low-velocity 56Ni decay lines detected earlier than expected in the type Ia SN 2014J find an explanation in the Quark-Nova Ia model which involves the thermonuclea…
Towards Non-spherical Radio Models
Valério A. R. M. Ribeiro, Wolfgang Steffen, Laura Chomiuk +3
Radio observations of novae in outburst are of particular interest due to the physical parameters that may be retrieved from fitting the radio light curves. Most models that have f…