SIMBAD references

2017MNRAS.470..324T - Mon. Not. R. Astron. Soc., 470, 324-339 (2017/September-1)

Disc-jet coupling in low-luminosity accreting neutron stars.

TUDOR V., MILLER-JONES J.C.A., PATRUNO A., D'ANGELO C.R., JONKER P.G., RUSSELL D.M., RUSSELL T.D., BERNARDINI F., LEWIS F., DELLER A.T., HESSELS J.W.T., MIGLIARI S., PLOTKIN R.M., SORIA R. and WIJNANDS R.

Abstract (from CDS):

In outburst, neutron star X-ray binaries produce less powerful jets than black holes at a given X-ray luminosity. This has made them more difficult to study as they fade towards quiescence. To explore whether neutron stars power jets at low accretion rates (LX <= 1036 erg s–1), we investigate the radio and X-ray properties of three accreting millisecond X-ray pulsars (IGR J17511-3057, SAX J1808.4-3658 and IGR J00291+5934) during their outbursts in 2015, and of the non-pulsing neutron star Cen X-4 in quiescence (2015) and in outburst (1979). We did not detect the radio counterpart of IGR J17511-3057 in outburst or of Cen X-4 in quiescence, but did detect IGR J00291+5934 and SAX J1808.4-3658, showing that at least some neutron stars launch jets at low accretion rates. While the radio and X-ray emission in IGR J00291+5934 seem to be tightly correlated, the relationship in SAX J1808.4-3658 is more complicated. We find that SAX J1808.4-3658 produces jets during the reflaring tail, and we explore a toy model to ascertain whether the radio emission could be attributed to the onset of a strong propeller. The lack of a universal radio/X-ray correlation, with different behaviours in different neutron star systems (with various radio/X-ray correlations; some being radio faint and others not), points at distinct disc-jet interactions in individual sources, while always being fainter in the radio band than black holes at the same X-ray luminosity.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - stars: neutron - radio continuum: transients - ISM: jets and outflows - X-rays: binaries - X-rays: binaries

Simbad objects: 28

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2021.06.16-00:51:13

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