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Deep optical observations of the supernova remnants G 126.2+1.6, G 59.8+1.2 and G 54.4-0.3
P. Boumis, F. Mavromatakis, E. M. Xilouris +3
Optical CCD imaging and spectroscopic observations of three supernova remnants are presented. Optical emission from G 54.4-0.3 and G 59.8+1.2 is detected for the first time, while…
Superballistic Diffusion of Entanglement in Disordered Spin Chains
J. Fitzsimons, J. Twamley
We study the dynamics of a single excitation in an infinite XXZ spin chain, which is launched from the origin. We study the time evolution of the spread of entanglement in the spin…
The creation of the Helix planetary nebula (NGC 7293) by multiple events
J. Meaburn, P. Boumis, J. A. Lopez +4
A deep, continuum-subtracted, image of NGC 7293 has been obtained in the light of the Halpha+[N II] emission lines. New images of two filamentary halo stuctures have been obtained…
The near-infrared excitation of the HH211 protostellar outflow
Barry O'Connell, Michael D. Smith, Dirk Froebrich +2
The protostellar outflow HH211 is of considerable interest since it is extremely young and highly collimated. Here, we explore the outflow through imaging and spectroscopy in the n…