Highly Ionized Neon in the Spectrum of the Sey 2 Galaxy NGC 4507 ?

Details Highly Ionized Neon in the Spectrum of the Sey 2 Galaxy NGC 4507 ? Highly Ionized Neon in the Spectrum of the Sey 2 Galaxy NGC 4507 ?

1997-01-17

arxiv.org/abs/astro-ph/9701123v1

Astronomy and Astrophysics

Astrophysics

2 pages, latex-macro memsait.sty, epsf.sty, to be published in the Proceedings of the conference "From Micro to Mega Parsec",

Scientific paper

Results of an ASCA X-ray observation of NGC 4507 are presented. The spectrum is best parameterized by a double power law (or a partial covering) model plus a narrow FeK$\alpha$ emission line likely due to the line-of-sight absorption matter. The data require also an emission line at $\sim$ 0.9 keV consistent with NeIX, which may indicate that the soft X-ray emission derives from a combination of resonant scattering and fluorescence of the radiation by photoionized gas. Moreover, complex absorption (or other, unresolved, emission lines) is required by the data below 3 keV. Similarities between the X-ray spectra of NGC 4507 and NGC 4151 are also stressed.

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