Circumstellar PAHs in IRAS 16594-4656: a new proto-planetary nebula with a strong 21mum dust feature
Based on ISO SWS+LWS observations, we identify IRAS 16594-4656 as a new member of the rare class of C-rich proto-planetary nebulae with the 21 μm dust feature in emission. In addition, the major PAHs emission bands at 3.3, 6.2, 7.7, 8.6 and 11.3 μm are detected, together with unusually strong features at 12.6 and 13.4 μm , very rarely observed
Garcia-Lario, P. et al.
Fecha de publicación:
3
1999