2019MNRAS.487L..30T

Query : 2019MNRAS.487L..30T

2019MNRAS.487L..30T - Mon. Not. R. Astron. Soc., 487, L30-L34 (2019/July-3)

Cyclotron emission, absorption, and the two faces of X-ray pulsar A 0535+262.

TSYGANKOV S.S., DOROSHENKO V., MUSHTUKOV A.A., SULEIMANOV V.F., LUTOVINOV A.A. and POUTANEN J.

Abstract (from CDS):

Deep NuSTAR observation of X-ray pulsar A 0535+262, performed at a very low luminosity of ∼7 x 1034 erg s–1, revealed the presence of two spectral components. We argue that the high-energy component is associated with cyclotron emission from recombination of electrons collisionally excited to the upper Landau levels. The cyclotron line energy of Ecyc = 47.7 ± 0.8 keV was measured at the luminosity of almost an order of magnitude lower than what was achieved before. The data firmly exclude a positive correlation of the cyclotron energy with the mass accretion rate in this source.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - scattering - stars: magnetic field - stars: neutron - pulsars: general - X-rays: binaries

Simbad objects: 4

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Number of rows : 4
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 V* BQ Cam HXB 03 34 59.9116110096 +53 10 23.296879776   17.16 15.42 14.26 13.04 O8.5Ve 525 1
2 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 1037 0
3 HD 245770 HXB 05 38 54.5748918624 +26 18 56.836952784 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 1045 0
4 V* V850 Cen HXB 13 01 17.0968941216 -61 36 06.637549788   15.6 14.40     B2Vne 361 0

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