2008MNRAS.383..161M

Query : 2008MNRAS.383..161M

2008MNRAS.383..161M - Mon. Not. R. Astron. Soc., 383, 161-172 (2008/January-1)

Radiative transitions of the helium atom in highly magnetized neutron star atmospheres.

MEDIN Z., LAI D. and POTEKHIN A.Y.

Abstract (from CDS):

Recent observations of thermally emitting isolated neutron stars revealed spectral features that could be interpreted as radiative transitions of He in a magnetized neutron star atmosphere. We present Hartree-Fock calculations of the polarization-dependent photoionization cross-sections of the He atom in strong magnetic fields ranging from 1012 to 1014 G. Convenient fitting formulae for the cross-sections are given along with the related oscillator strengths for various bound-bound transitions. The effects of finite nucleus mass on the radiative absorption cross-sections are examined using perturbation theory.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): atomic processes - magnetic fields - stars: atmospheres - stars: neutron

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 - 2026 		#notes
1 RX J0720.4-3125 N* 07 20 24.961 -31 25 50.21   26.1   27.0   ~ 316 0
2 PSR J1210-5226 Psr 12 10 00.88 -52 26 28.4           ~ 230 1
3 RBS 1223 N* 13 08 48.7 +21 27 08   28.6 28.6     ~ 163 1
4 RBS 1556 N* 16 05 18.9 +32 49 07     26.8     ~ 105 1
5 RX J1856.6-3754 Psr 18 56 35.11 -37 54 30.5     25.7     ~ 456 0
6 RBS 1774 N* 21 43 03.8 +06 54 20           ~ 82 0

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