
TY  - JOUR
A1  - Manchester, RN 
T1  - Bi-annular Structure in Supernova Remnants
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1987
VL  - 40
IS  - 6
SP  - 823
EP  - 830
KW  - 
UR  - https://doi.org/10.1071/PH870823 
N2  - In many supernova remnants the radio structure contains loop features. It is proposed that these loop features are generally due to an enhancement of the shell emission in two co-axial rings. This bi-annu1ar enhancement is closely related to the <;ylindrica1 or barrel morphology possessed by most remnants and is probably formed early in the life of the remnant. 
ER  -

