Suzaku detection of a highly carbon enriched plasma in BD +30°3639.

Authors :: Kokubun, M.
Murashima, M.
Makishima, K.
Matsushita, K.
Kotoku, J.
Murakami, H.
Hayashida, K.
Matsumoto, H.
Hamaguchi, K.
Arnaud, K.
Source :: Proceedings of the International Astronomical Union; 04/02/2006, Vol. 2 Issue S234, p165-168, 4p
Publication Year :: 2006
Abstract: We have observed the X-ray brightest planetary nebula BD +30° 3639 with the new Japanese astronomical satellite Suzaku. With its superior spectral resolution back-illuminated CCD camera, a blend of K-lines from highly ionized C, N, O elements are successfully resolved into individual species, and an extremely high relative abundance ratio of C/O $\sim$ 40 is obtained. This strongly suggests the direct measurement of the helium shell-burning products. [ABSTRACT FROM PUBLISHER]