H and He-like Ions Emission in the Spectra of X-ray Binaries.

Session 110 - X-ray, Binaries & Accretion Disks.
Display session, Saturday, January 10
Exhibit Hall,

[110.10] H and He-like Ions Emission in the Spectra of X-ray Binaries.

M. A. Bautista, T. R. Kallman, N. E. White, L. Angelini (NASA/GSFC)

We study the emission from H and He-like ions, particularly oxygen and neon, observed in ASCA spectra of low-mass X-ray binaries (LMXBs). The observed strengths of these lines relative to the recombination continua seem to differ from the classic recombination model. This suggests a different excitation mechanism for the lines. Various mechanisms, inlcuding collisional excitation, continuum resonance fluorescence and three body recombination, are discussed.

The author(s) of this abstract have provided an email address for comments about the abstract: bautista@marlin.gsfc.nasa.gov

Program listing for Saturday