172 citations · 560 across the 8 of their papers we have counts for
10 papers
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…
Evolution of tidal disruption candidates discovered by XMM-Newton
P. Esquej, R. D. Saxton, S. Komossa +8
It has been demonstrated that active galactic nuclei are powered by gas accretion onto supermassive black holes located at their centres. The paradigm that the nuclei of inactive g…
A search for diffuse bands in the circumstellar envelopes of post-AGB stars
R. Luna, N. L. J. Cox, M. A. Satorre +3
In this work we present the results of a systematic search for diffuse bands (DBs, hereafter) in the circumstellar envelopes of a carefully selected sample of post-AGB stars. We co…
Rubidium-Rich Asymptotic Giant Branch Stars
D. A. Garcia-Hernandez, P. Garcia-Lario, B. Plez +3
A long debated issue concerning the nucleosynthesis of neutron-rich elements in Asymptotic Giant Branch (AGB) stars is the identification of the neutron source. We report intermedi…
Lithium and zirconium abundances in massive Galactic O-rich AGB stars
D. A. Garcia-Hernandez, P. Garcia-Lario, B. Plez +4
Lithium and zirconium abundances (the latter taken as representative for s-process enrichment) are determined for a large sample of massive Galactic O-rich AGB stars, for which hig…
Spitzer Spectra of Magellanic Cloud PNe
L. Stanghellini, P. Garcia Lario, A. Manchado +4
Planetary nebulae (PNe) in the Magellanic Clouds (LMC, SMC) offer a unique opportunity to study both the population and evolution of low- and intermediate-mass stars in an environm…