53 citations · 180 across the 8 of their papers we have counts for
8 papers
Observations and 3D Hydrodynamical models of planetary nebulae with Wolf Rayet type central stars
J. S. Rechy-García, P. F. Velázquez, M. Peña +1
We present high-resolution, long-slit spectroscopic observations of two planetary nebulae with [WC] central stars located near the galactic bulge, M 1-32 and M 3-15. The observatio…
A Consistent Spectral Model of WR 136 and its Associated Bubble NGC 6888
J. Reyes-Pérez, C. Morisset, M. Peña +1
We analyse whether a stellar atmosphere model computed with the code CMFGEN provides an optimal description of the stellar observations of WR 136 and simultaneously reproduces the…
Analysis of chemical abundances in planetary nebulae with [WC] central stars. II. Chemical abundances and the abundance discrepancy factor
J. Garcia-Rojas, M. Peña, C. Morisset +3
(Abridged) We present the abundance analysis of 12 PNe ionized by [WC]-type stars and wels obtained from high-resolution spectrophotometric data. Our main aims are to determine the…
Planetary nebulae and HII regions in the spiral galaxy NGC 300. Clues on the evolution of abundance gradients and on AGB nucleosynthesis
G. Stasinska, M. Pena, F. Bresolin +1
We have obtained deep spectra of 26 planetary nebulae (PNe) and 9 compact HII regions in the nearby spiral galaxy NGC 300, and analyzed them together with those of the giant HII re…
The chemical composition of TS 01, the most oxygen-deficient planetary nebula. AGB nucleosynthesis in a metal-poor binary star
G. Stasinska, C. Morisset, G. Tovmassian +10
The planetary nebula TS 01 (also called PN G 135.9+55.9 or SBS 1150+599A), with its record-holding low oxygen abundance and its double degenerate close binary core (period 3.9 h),…
A catalog of planetary nebula candidates and HII regions in NGC 3109
M. Pena, M. G. Richer, G. Stasinska
Images obtained with the ESO VLT and FORS1 in [O III] 5007 on- and off-band as well as r_Gunn filters are analyzed to search for Planetary Nebula (PN) candidates in the dwarf irreg…