226 citations · 1.3k across the 51 of their papers we have counts for
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The dust and gas content of carbon stars toward the Galactic Halo
Eric Lagadec, Greg. C. Sloan, Albert. A. Zijlstra +2
We present Spitzer IRS spectra of four carbon stars located in the Galactic Halo and the thick disc. The spectra display typical features of carbon stars with SiC dust emission and…
The Spitzer Spectroscopic Survey of S-type Stars
K. Smolders, P. Neyskens, J. A. D. L. Blommaert +28
S-type AGB stars are thought to be in the transitional phase between M-type and C-type AGB stars. Because of their peculiar chemical composition, one may expect a strong influence…
Radiation Transfer in the Cavity and Shell of Planetary Nebulae
M. D. Gray, M. Matsuura, A. A. Zijlstra
We develop an approximate analytical solution for the transfer of line-averaged radiation in the hydrogen recombination lines for the ionized cavity and molecular shell of a spheri…