155 citations · 583 across the 17 of their papers we have counts for
17 papers
Neon, sulphur and argon abundances of planetary nebulae in the sub-solar metallicity Galactic anti-centre
George J. S. Pagomenos, Jeronimo Bernard-Salas, Stuart R. Pottasch
The abundances derived from planetary nebula emission show the presence of a metallicity gradient within the disk of the Milky Way up to Galactocentric distances of ~10 kpc, which…
Dust Properties in the Galactic Bulge
S. R. Pottasch, J. Bernard-Salas
It has been suggested that the ratio of total-to-selective extinction RV in dust in the interstellar medium differs in the Galactic bulge from its value in the local neighborhood.…
Abundances in planetary nebulae: NGC1535, NGC6629, He2-108, and Tc1
S. R. Pottasch, R. Surendiranath, J. Bernard-Salas
The aim of the paper is to determine abundances in a group of PNe with uniform morphology. The PNe discussed are circular excited by rather low-temperature central stars. The relat…
Planetary nebulae abundances and stellar evolution II
S. R. Pottasch, J. Bernard-Salas
Context: In recent years mid- and far infrared spectra of planetary nebulae have been analysed and lead to more accurate abundances. It may be expected that these better abundances…
Abundances of Planetary Nebulae NGC3242 and NGC6369
S. R. Pottasch, J. Bernard-Salas
The spectra of the planetary nebulae NGC3242 and NGC6369 are reanalysed using spectral measurements made in the mid-infrared with the Spitzer Space Telescope and the Infrared Space…
Abundances of Planetary Nebula NGC2392
S. R. Pottasch, J. Bernard-Salas, T. L. Roellig
The spectra of the planetary nebula NGC2392 is reanalysed using spectral measurements made in the mid-infrared with the Spitzer Space Telescope. The aim is to determine the chemica…