SIMBAD references

2006ApJ...647L.131M - Astrophys. J., 647, L131-L134 (2006/August-3)

Suzaku reveals helium-burning products in the X-ray-emitting planetary nebula BD +30 3639.

MURASHIMA M., KOKUBUN M., MAKISHIMA K., KOTOKU J., MURAKAMI H., MATSUSHITA K., HAYASHIDA K., ARNAUD K., HAMAGUCHI K. and MATSUMOTO H.

Abstract (from CDS):

BD +30 3639, the brightest planetary nebula at X-ray energies, was observed with Suzaku, an X-ray observatory launched on 2005 July 10. Using the X-ray Imaging Spectrometer, the K lines from C VI, O VII, and O VIII were resolved for the first time, and the C/O, N/O, and Ne/O abundance ratios were determined. The C/O and Ne/O abundance ratios exceed the solar value by factors of at least 30 and 5, respectively. These results indicate that the X-rays are emitted mainly by helium-shell-burning products.

Abstract Copyright: ∼

Journal keyword(s): ISM: Planetary Nebulae: General - planetary nebulae: individual (BD +30 3639) - X-Rays: ISM

CDS comments: Parag. 3 : RX J1856.6-3574 is a misprint for RX J1856.6-3754

Simbad objects: 3

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