19 citations · 38 across the 11 of their papers we have counts for
4 papers · 1 filter
Investigating spatial variation of the physical and chemical conditions of NGC 6778
H. Monteiro, J. Garcia-Rojas, D. Jones +2
A number of planetary nebulae show binary central stars and significant abundance discrepancies between values estimated from colisionally excited lines when compared to the same a…
Chemical abundances in Galactic planetary nebulae from faint emission lines
Jorge García-Rojas
Deep spectrophotometry has proved to be a fundamental tool to improve our knowledge on the chemical content of planetary nebulae. With the arrival of very efficient spectrographs i…
Close binary central stars and the abundance discrepancy - new extreme objects
R. Wesson, D. Jones, J. García-Rojas +2
Recent work (Corradi et al. 2015, Jones et al. 2016) has shown that the phenomenon of extreme abundance discrepancies, where recombination line abundances exceed collisionally exci…
Neutron-capture element abundances in the planetary nebula NGC 5315 from deep high-resolution optical and near-IR spectrophotometry
S. Madonna, J. García-Rojas, N. C. Sterling +1
We have done a spectroscopical analysis of the type I planetary nebula (PN) NGC 5315, through high-resolution (R40000) optical spectroscopy with UVES at the 8.2m Very Large T…