X-Rays Reveals Helium-burning Products in Planetary Nebulae with Fast Stellar Winds
Abstract
Suzaku observed the X-ray brightest planetary nebula BD+30°3639, and obtained the C/O, N/O, and Ne/O abundance ratios. The C/O and the Ne/O abundance ratios exceed the solar value by factors of 85 and 5.8, respectively. These results indicate that the X-rays are emitted mainly by helium-shell-burning products.
- Publication:
-
Astronomical Herald
- Pub Date:
- September 2007
- Bibcode:
- 2007AstHe.100..444M
- Keywords:
-
- X-rays;
- Stellar Winds;
- Planetary Nebulae