It is now clear that central star binarity plays a key role in the formation and evolution of planetary nebulae, with a significant fraction playing host to...
The binary central stars of PNe with the shortest orbital period
Close binarity can play a significant role in the shaping of planetary nebulae (PNe) as the system evolves through the common-envelope phase. We present the...
The authors discuss the nature of S 201 in the light of new optical and infrared observations, in terms of the interaction between an evolved H II region and a...
HR 3126 is an M2 II giant surrounded by the bipolar reflection nebula IC2220. A sensitive R-band image obtained with the ESO 3.6 m telescope shows that the...
High-dispersion long-slit spectra reveal several kinematically distinct components to the extended emission line gas in NGC 3516. The symmetry of the velocity...
The bistatic LGS scheme for sodium layer height characterization (based on the Teide Observatory experimental setup)
Laser Guide Stars -LGS- has been widely proposed to extend the domain of stable operation for adaptive optics systems in large telescopes. As LGS are formed in...