TY  - JOUR
EP  - L4
A1  - Hony, S
A1  - Dominik, C
A1  - Waters, LBFM
A1  - Icke, V
A1  - Mellema, G
A1  - van Boekel, R
A1  - de Koter, A
A1  - Morris, PM
A1  - Barlow, M
A1  - Cox, P
A1  - Kaufl, HU
JF  - Astronomy & Astrophysics
KW  - circumstellar matter / stars: emission-line
KW  -  Be / stars: individual: ? Car / infrared: stars
IS  - 1
TI  - Discovery of a double ring in the core of ? Carinae
N2  - We report the discovery of a double ring structure in the waist of the nebula surrounding ? Carinae. The rings are detected in the mid-IR dust continuum at wavelengths of 7.9, 11.9, 12.9 and 20 ?m. The dust in the rings has a temperature of about 300 K. The orientation of the rings is inclined with respect to the axis of the homunculus by either 37 or 58 degrees. The central star is not in the projected centre of the structure defined by the two rings. This geometry is reminiscent of that seen in SN1987A and some planetary nebulae. We discuss several possible origins for this remarkable geometry and its orientation.
ID  - discovery10096044
UR  - https://doi.org/10.1051/0004-6361:20011168
PB  - EDP SCIENCES S A
AV  - public
Y1  - 2001/10//
VL  - 377
N1  - This version is the version of record. For information on re-use, please refer to the publisher?s terms and conditions.
SP  - L1
ER  -