SIMBAD references

2010A&A...518A..24P - Astronomy and Astrophysics, volume 518, A24-24 (2010/7-2)

Cyclotron harmonics in opacities of isolated neutron star atmospheres.


Abstract (from CDS):

Some X-ray dim isolated neutron stars (XDINS) and central compact objects in supernova remnants (CCO) contain absorption features in their thermal soft X-ray spectra. It has been hypothesized that this absorption may relate to periodic peaks in free-free absorption opacities, caused by either Landau quantization of electron motion in magnetic fields BΛ1011G or analogous quantization of ion motion in magnetic fields B>1013G. Here, I review the physics behind cyclotron quantum harmonics in free-free photoabsorption, discuss different approximations for their calculation, and explain why the ion cyclotron harmonics (beyond the fundamental) cannot be observed.

Abstract Copyright:

Journal keyword(s): stars: neutron - stars: atmospheres - opacity - magnetic fields - X-rays: stars

Simbad objects: 6

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