On the possibility of observing iron line emission from the surface of magnetized neutron stars

Details On the possibility of observing iron line emission from the surface of magnetized neutron stars On the possibility of observing iron line emission from the surface of magnetized neutron stars

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...109....1y&link_type=abstract

Astronomy and Astrophysics, vol. 109, no. 1, May 1982, p. 1-3.

Astronomy and Astrophysics

Astrophysics

2

Iron, Line Spectra, Neutron Stars, Stellar Magnetic Fields, Stellar Spectra, Atomic Excitations, Electron Energy, Electron Transitions, Metal Ions

Scientific paper

We solve the radiation problem of the FXXVIe Lyα photons in the emission zone of strongly magnetized neutron stars. It is shown that for the cosmic abundance of Fe and for plausible thermal conditions in this zone, the possibility of observing atomic line transitions in the hard X-ray spectrum is very unlikely. Absorption feature may be observed, however, provided the electron temperature close to the stellar surface is relatively low (i. e. less than about 3 keV), or the Fe abundance is abnormally high compared to the cosmic abundance (i. e. bigger by a factor of ≍10).

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