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Zooming on the emerging ionized regions of pPNe with ALMA
C. Sánchez Contreras, D. Tafoya, J. P. Fonfría +3
We report on recent results from our successful and pioneering observational program with ALMA to study emerging ultracom pact HII regions of pre-Planetary Nebulae (pPNe) using mm-…
The Red Rectangle: a thin disk with big grains
Javier Alcolea, Valentin Bujarrabal, Arancha Castro-Carrizo +3
The Red Rectangle is a nebula surrounding the post-AGB star HD 44179. It is the prototype of a particular class of nebulae associated with post-AGB binaries characterised by the pr…
The very compact dust disk in the Red Rectangle
V. Bujarrabal, J. Alcolea, A. Castro-Carrizo +3
We aim to study the dust distribution in the central regions of the Keplerian disk of the Red Rectangle, the prototype of binary post-AGB stars with rotating circumbinary disks, an…
The nebula around the binary post-AGB star 89 Herculis
I. Gallardo Cava, J. Alcolea, V. Bujarrabal +2
There is a class of binary post-asymptotic giant branch (post-AGB) stars that exhibit remarkable near-infrared (NIR) excess. These stars are surrounded by disks with Keplerian or q…