SIMBAD references

2013A&A...557L..11B - Astronomy and Astrophysics, volume 557, L11-11 (2013/9-1)

ALMA observations of the Red Rectangle, a preliminary analysis.

BUJARRABAL V., CASTRO-CARRIZO A., ALCOLEA J., VAN WINCKEL H., SANCHEZ CONTRERAS C., SANTANDER-GARCIA M., NERI R. and LUCAS R.

Abstract (from CDS):

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. 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. 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.

Abstract Copyright:

Journal keyword(s): stars: AGB and post-AGB - circumstellar matter - radio lines: stars - planetary nebulae: individual: Red Rectangle

Simbad objects: 7

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2019.10.17-03:43:33

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