69 citations · 338 across the 9 of their papers we have counts for
3 papers · 1 filter
Chemical abundances in Galactic planetary nebulae with Spitzer spectra
D. A. Garcia-Hernandez, S. K. Gorny
We present new low-resolution (R~800) optical spectra of 22 Galactic PNe with Spitzer spectra. These data are combined with recent optical spectroscopic data available in the liter…
New groups of planetary nebulae with peculiar dust chemistry towards the Galactic bulge
S. K. Gorny, J. V. Perea-Calderon, D. A. Garcia-Hernandez +2
We investigate Galactic bulge planetary nebulae without emission-line central stars for which peculiar infrared spectra have been obtained with the Spitzer Space Telescope, includi…
Planetary nebulae in the direction of the Galactic bulge: On nebulae with emission-line central stars
S. K. Gorny, C. Chiappini, G. Stasinska +1
We present a homogeneous set of spectroscopic measurements secured with 4-meter class telescopes for a sample of 90 planetary nebulae (PNe) located in the direction of the Galactic…