2010A&A...518A..24P


Query : 2010A&A...518A..24P

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

Cyclotron harmonics in opacities of isolated neutron star atmospheres.

POTEKHIN A.Y.

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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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 RX J0720.4-3125 N* 07 20 24.961 -31 25 50.21   26.1   27.0   ~ 291 0
2 PSR J1210-5226 Psr 12 10 00.88 -52 26 28.4           ~ 220 1
3 RX J1308.8+2127 N*? 13 08 48.7 +21 27 08   28.6 28.6     ~ 149 1
4 RX J1605.3+3249 N*? 16 05 18.9 +32 49 07     26.8     ~ 94 1
5 RX J2143.0+0654 N*? 21 43 03.8 +06 54 20           ~ 74 0
6 NAME Magnificent Seven ? ~ ~           ~ 63 1

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2022.05.26-00:41:09

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