69 citations · 338 across the 9 of their papers we have counts for
9 papers
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…
Abundances in the Galactic bulge: results from planetary nebulae and giant stars
C. Chiappini, S. Gorny, G. Stasinska +1
Our understanding of the chemical evolution of the Galactic bulge requires the determination of abundances in large samples of giant stars and planetary nebulae (PNe). We discuss P…
Planetary nebulae with emission-line central stars
K. Gesicki, A. A. Zijlstra, A. Acker +3
The kinematic structure of a sample of planetary nebulae, consisting of 23 [WR] central stars, 21 weak emission line stars (wels) and 57 non-emission line central stars, is studied…
V4332 Sagittarii revisited
R. Tylenda, L. A. Crause, S. K. Gorny +1
The eruption of V4332 Sgr discovered in February 1994 shows striking similarities to that of V838 Mon started in January 2002. The nature of these eruptions is, however, enigmatic…