Title: ALMA observations of the Red Rectangle, a preliminary analysis
Authors: Bujarrabal, V ×
Castro-Carrizo, A
Alcolea, J
Van Winckel, Hans
Sanchez Contreras, C
Santander-Garcia, M
Neri, R
Lucas, R #
Issue Date: Sep-2013
Publisher: EDP Sciences
Series Title: Astronomy & Astrophysics vol:557 pages:11-16
Abstract: Aims: We aim to study equatorial disks in rotation and axial outflows in post-AGB objects so as to disclose the formation and shaping mechanisms in planetary nebulae. So far, both disks and outflows have not been observed simultaneously.
Methods: We obtained high-quality ALMA observations of 12CO and 13CO J = 3-2 and 12CO J = 6-5 line emission in the Red Rectangle, the only post-AGB/protoplanetary object for which a disk in rotation has been mapped.
Results: These observations provide an unprecedented description of the complex structure of this source. Together with an equatorial disk in rotation, we find a low-velocity outflow that more or less occupies the region situated between the disk and the optical X-shaped nebula. From our observations and preliminary modeling of the data, we confirm the previously known properties of the disk and obtain a first description of the structure, dynamics, and physical conditions of the outflow.

Appendix A is available in electronic form at
ISSN: 0004-6361
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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