381 citations · 869 across the 8 of their papers we have counts for
4 papers · 1 filter
The nature of dust in compact Galactic planetary nebulae from Spitzer spectra
L. Stanghellini, D. A. Garcia-Hernandez, P. Garcia-Lario +5
We present the Spitzer/IRS spectra of 157 compact Galactic PNe. These young PNe provide insight on the effects of dust in early post-AGB evolution, before much of the dust is alter…
Formation of fullerenes in H-containing Planetary Nebulae
D. A. Garcia-Hernandez, A. Manchado, P. Garcia-Lario +5
Hydrogen depleted environments are considered an essential requirement for the formation of fullerenes. The recent detection of C60 and C70 fullerenes in what was interpreted as th…
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…
The mixed chemistry phenomenon in Galactic Bulge PNe
J. V. Perea-Calderon, D. A. Garcia-Hernandez, P. Garcia-Lario +2
We investigate the dual-dust chemistry (DDC) phenomenon in PNe and discuss reasons for its occurrence, by analyzing Spitzer/IRS spectra of a sample of 40 Galactic PNe among which 2…