The optical/UV excess of isolated neutron stars in the RCS model

Details The optical/UV excess of isolated neutron stars in the RCS model The optical/UV excess of isolated neutron stars in the RCS model

2011-07-05

arxiv.org/abs/1107.0830v2

2011, RAA, 11, 1371

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

6 pages, 2 figures, 1 table, accepted for publication in Research in Astronomy and Astrophysics

Scientific paper

10.1088/1674-4527/11/12/001

The X-ray dim isolated neutron stars (XDINSs) are peculiar pulsar-like objects, characterized by their very well Planck-like spectrum. In studying their spectral energy distributions, the optical/UV excess is a long standing problem. Recently, Kaplan et al. (2011) have measured the optical/UV excess for all seven sources, which is understandable in the resonant cyclotron scattering (RCS) model previously addressed. The RCS model calculations show that the RCS process can account for the observed optical/UV excess for most sources . The flat spectrum of RX J2143.0+0654 may due to contribution from bremsstrahlung emission of the electron system in addition to the RCS process.

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